1,720,980 research outputs found
Barbus urmianus, a synonym of Barbus cyri (Teleostei: Cyprinidae)
No full textJouladeh-Roudbar, Arash, Ghanavi, Hamid Reza, Kaya, Cüneyt, Freyhof, Jörg (2023): Barbus urmianus, a synonym of Barbus cyri (Teleostei: Cyprinidae). Zootaxa 5296 (1): 16-30, DOI: 10.11646/zootaxa.5296.1.2, URL: http://dx.doi.org/10.11646/zootaxa.5296.1.
FIGURE 7 in Cabdio occidentalis, a new species from Lake Mashkid basin and the Makran region (Teleostei: Danionidae)
No full textFIGURE 7. Type locality of Cabdio occidentalis; Iran: Sarbaz River.Published as part of <i>Jouladeh-Roudbar, Arash, Vatandoust, Saber, Ghanavi, Hamid Reza & Freyhof, Jörg, 2023, Cabdio occidentalis, a new species from Lake Mashkid basin and the Makran region (Teleostei: Danionidae), pp. 437-447 in Zootaxa 5360 (3)</i> on page 446, DOI: 10.11646/zootaxa.5360.3.7, <a href="http://zenodo.org/record/10144831">http://zenodo.org/record/10144831</a>
Cobitis keyvani, a junior synonym of Cobitis faridpaki (Teleostei: Cobitidae)
No full textJouladeh-Roudbar, Arash, Eagderi, Soheil, Sayyadzadeh, Golnaz, Esmaeili, Hamid Reza (2017): Cobitis keyvani, a junior synonym of Cobitis faridpaki (Teleostei: Cobitidae). Zootaxa 4244 (1): 118-126, DOI: https://doi.org/10.11646/zootaxa.4244.1.
Alburnoides recepi, a junior synonym of Alburnus caeruleus (Teleostei: Cyprinidae)
No full textBirecikligil, Sevil Sungur, Eagderi, Soheil, Jouladeh-Roudbar, Arash, Çiçek, Erdogan (2017): Alburnoides recepi, a junior synonym of Alburnus caeruleus (Teleostei: Cyprinidae). Zootaxa 4277 (1): 129-136, DOI: https://doi.org/10.11646/zootaxa.4277.1.1
Glyptothorax vatandousti, a new species of torrent catfish from the upper Karkheh drainage in Iran (Teleostei: Sisoridae)
No full textJouladeh-Roudbar, Arash, Ghanavi, Hamid Reza, Freyhof, Jörg (2023): Glyptothorax vatandousti, a new species of torrent catfish from the upper Karkheh drainage in Iran (Teleostei: Sisoridae). Zootaxa 5315 (1): 37-58, DOI: 10.11646/zootaxa.5315.1.2, URL: http://dx.doi.org/10.11646/zootaxa.5315.1.
Glyptothorax
No full textKey to species of Glyptothorax in Iran (expanded from Freyhof et al. 2001 and Mousavi-Sabet et al. 2021) 1a- Adipose length 1.5–3.0 times longer than distance between base of last dorsal ray and adipose origin; 13–17 serrae on pectoral spine, medial pit of thoracic adhesive apparatus with striae........................................ G. steindachneri 1b- Adipose length 0.6–1.2 times of distance between base of last dorsal ray and adipose origin; 5–14 serrae on pectoral spine; medial pit of thoracic adhesive apparatus without striae........................................................ 2 2a- Head and flank with tubercles (rarely absent in some individuals)........................................... G. cous 2b- Head and flank without tubercles, with or without roundish or elongate warts...................................... 3 3a- Upper head, back and flank without brown or black spots or blotches............................................. 4 3b- Upper head, back and flank with few or many, dark-brown spots and, or blotches (potentially faded in poorly preserved individuals).......................................................................................... 5 4a- Outer mandibular barbel not reaching pectoral-fin origin; thoracic adhesive apparatus slightly elevated; medial pit broad, its anterior end roundish; caudal peduncle depth 1.6–2.3 times its length................................. G. sardashtensis 4b- Outer mandibular barbel reaching pectoral-fin origin; thoracic adhesive apparatus strongly elevated; medial pit narrow and spear-blade shaped; caudal peduncle depth 1.1–1.3 times its length....................................... G. pallens 5a- Thoracic adhesive apparatus wider than long, as wide as long in juveniles (0.7 – 0.9 times longer than wide).............. 6 5b- Thoracic adhesive apparatus as wide as long or longer, 1.0–1.6 times longer than wide............................... 7 6a- Thoracic adhesive apparatus moderately elevated with few, short anteromedial striae; caudal-peduncle length 16–20% SL............................................................................................ G. vatandousti 6b- Thoracic adhesive apparatus elevated with many and long anteromedial striae; caudal-peduncle length 13–16% SL................................................................................................ G. kurdistanicus 7a- Anteromedial striae in thoracic adhesive apparatus long and numerous........................................... 8 7b- Anteromedial striae in thoracic adhesive apparatus short or absent............................................... 9 8a- Caudal-peduncle depth 1.3–1.6 times in its length; shortest middle caudal-fin ray 42–49% of longest ray of upper caudal lobe; caudal with pointed lobes; maxillary barbel as long as head (95–108% HL)........................... G. hosseinpanahii 8b- Caudal-peduncle depth 1.6–2.5 times in its length; shortest middle caudal ray 55–65% of longest ray of upper caudal lobe; caudal with rounded lobes; maxillary barbel shorter than head (72–91% HL)............................... G. galaxias 9a- Thoracic adhesive apparatus 1.3–1.6 times as long as wide............................................. G. silviae 9b- Thoracic adhesive apparatus 1.1–1.3 times longer than wide................................ G. alidaeii & G. shapuriPublished as part of Jouladeh-Roudbar, Arash, Ghanavi, Hamid Reza & Freyhof, Jörg, 2023, Glyptothorax vatandousti, a new species of torrent catfish from the upper Karkheh drainage in Iran (Teleostei: Sisoridae), pp. 37-58 in Zootaxa 5315 (1) on pages 42-43, DOI: 10.11646/zootaxa.5315.1.2, http://zenodo.org/record/813012
Turcinoemacheilus inexpectatus Freyhof & Jouladeh-Roudbar 2024, new species
No full text<i>Turcinoemacheilus inexpectatus</i>, new species <p>(Figs. 1–5)</p> <p> <b>Holotype</b>. ZFMK-ICH 98400, 49.4 mm SL; Iraq: stream Kuna Massi in Sevanja, a tributary to Lesser Zab, 35.78880, 45.40298.</p> <p> <b>Paratypes.</b> ZFMK-ICH 98401-98406 (formerly FSJF 3350), 6, 41–50 mm SL; same data as holotype. – FSJF 3345, 7, 41–51 mm SL; Iraq: stream north-west of Saburawa, a tributary of Tabin, a tributary to Lesser Zab, 35.83324, 45.10445. – FSJF 3370, 4, 40–46 mm SL; Iraq: Suraw near Suraw, a tributary to Lesser Zab, 35.76244, 45.9848. – FSJF 3358, 3, 30–45 mm SL; Iraq: Choman at Qubay Galala, 36.6106, 44.8381. – FSJF 3653, 8, 29–51 mm SL; Iraq: Aw-e Shiler at Kewata, 35.7509, 45.4797. – FSJF 3661, 9, 34–48 mm SL; Iraq: Choman at Alut, 35.9564, 45.6156. – MZLU L021 /00002-3, 2, 48–55 mm SL; Iran: Kurdistan prov., Choman at Cherush, a tributary of Lesser Zab, 35.95400, 45.69216. – AJRPC 1758-1759, 2, 40–42 mm SL; Iran: Kurdistan prov., Choman at Cherush, a tributary of Lesser Zab, 35.95400, 45.69216. – AJRPC 1637, 1, 43 mm SL; Iran: Kurdistan prov., Lesser Zab at Armardeh, 35.91506, 45.72798.</p> <p> <b>Other materials.</b> FSJF 3358, 1, 52 mm SL; Iraq: Zalm at Khurmal, a tributary to Sirvan, 35.30656, 45.97081. – FSJF 3377, 3, 41–46 mm SL; Iraq: Chami Rean near Ziraran, a tributary to Greater Zab, 36.94347, 44.19496.</p> <p> <b>Additional distribution records.</b> 35.96126, 45.64265; 35.92455, 45.70952; 35.92182, 45.72411 (AJR personal observation).</p> <p> <b>Diagnosis.</b> <i>Turcinoemacheilus inexpectatus</i> belongs to the <i>T. kosswigi</i> species group (<i>T. ekmekciae</i>, <i>T. kosswigi</i>, <i>T. minimus</i>, <i>T. saadii</i>), and is distinguished from members of the <i>T. hafezi</i> group (<i>T. baheii</i>, <i>T. hafezi</i>) by the anus situated at, or in front of half-way between the pelvic-fin and anal-fin origins (vs. behind half-way).</p> <p> It is distinguished from <i>T. saadii</i> by possessing an indistinct or prominent lateral stripe along the lateral midline often overlaid by a row of dark-brown blotches, especially on the flank behind the vertical of dorsal-fin origin (vs. no lateral stripe along lateral midline, 7–9 distinct dark saddles on back often fused with a row of isolated midlateral blotches).</p> <p> The new species is distinguished from <i>T. kosswigi</i> by having the dark stripe broader than eye diameter along the lateral midline (vs. narrower), and a greater pre-pelvic distance (50–53% SL vs. 47–50). It is further distinguished from <i>T. minimus</i> by possessing 2–4 brown blotches or saddles on the back in front of dorsal-fin origin, often indistinct or absent (vs. distinct brown mottling pattern), deeper caudal peduncle (8–10% SL vs. 6–7), and 5–6 mandibular pores in mandibular canal (vs. 4–5).</p> <p> <i>Turcinoemacheilus inexpectatus</i> is similar to <i>T. ekmekciae</i> and the only morphometric characters found to distinguish both species is the interorbital distance (31-37% HL in <i>T. inexpectatus</i> vs. 23–31 given by Kaya <i>et al.</i> 2023, and 28–31 in materials examined for this study). As the fish are small and this is a soft character, the standard deviation is high in our materials (2.0) as well those used in Kaya <i>et al.</i> (2023) (2.6). No meristic counts can be used to distinguish both species, and so is the shape and structure of the mouth, which are identical for both species.</p> <p> The colour pattern in <i>T</i>. <i>inexpectatus</i> is very variable and individuals with the most intensive pattern have a series of midlateral blotches on the flank, fused into a stripe, a series of saddles or blotches on the back, and a marmorate pattern on the upper part of the flank, between the saddles and the midlateral stripe. All individuals of <i>T. inexpectatus</i> have a lateral stripe, only in few specimens, it is interrupted on the flank in front of dorsal-fin origin (vs. stripe absent in <i>T. ekmekciae</i> from Yanarsu, Kaya <i>et al</i>. 2023). In <i>T</i>. <i>inexpectatus</i> there are a series of saddles or blotches on the dorsal surface in front and behind the dorsal-fin origin (vs. a mottled pattern in front of dorsal-fin origin in most individuals in <i>T. ekmekciae</i>, saddles behind dorsal-fin base). Kaya <i>et al.</i> (2023) state that “there are no saddles on the back (in <i>T. ekmekciae</i>). If present, they are large and brown, connected to lateral blotches along the body”.</p> <p> In many individuals of <i>T</i>. <i>inexpectatus</i>, the colour pattern on the back and flank is more or less faded up to being almost plain-brown, darker above than below the lateral midlines. Individuals with a wide stripe on a plain background are common in <i>T. inexpectatus</i> (vs. very rare in <i>T. ekmekciae</i>) as well as individuals with a brown flank below the lateral stripe (vs. absent in <i>T. ekmekciae</i>). Kaya <i>et al.</i> (2023, uppermost individual Fig. 4) show an individual of <i>T</i>. <i>ekmekciae</i> with almost no pattern above the lateral stripe, indistinguishable in its lateral pigmentation patterns from few such individuals of <i>T. inexpectatus</i>. The back of this individual is not shown by Kaya <i>et al.</i> (2023), but they state that <i>T. ekmekciae</i> lacks either saddles or blotches on the back in front of dorsal-origin (vs. present in <i>T. inexpectatus</i>).</p> <p> <b>Description.</b> For general appearance see Figures 1–5; morphometric data are provided in Table 1. Small-sized and slender species. Head short, 1.3–2.0 times in body depth at dorsal-fin origin. Pre-dorsal profile slightly convex, pre-pelvic profile straight. Body deepest and widest at mid-point of pre-dorsal distance, depth decreasing towards caudal-fin base. Hump at nape absent, or very shallow. Section of head roundish, flattened on ventral surface, straight or slightly convex in interorbital space, distinctly convex on snout. Snout pointed. Caudal peduncle compressed laterally, 1.5–2.3 times longer than deep. Pelvic axillary lobe present, its tip either attached, or not attached to body. Pelvic fin origin in front of dorsal-fin origin. Pectoral fin reaching 31–46% of distance from pectoral-fin origin to pelvic-fin origin. Pelvic fin reaching beyond anus. Distance from anus to anal-fin origin 1.7–2.5 times in distance from pelvic-fin to anal-fin origins. Anal-fin origin behind vertical of tip of dorsal fin when adpressed to body. Anal fin not reaching to middle of caudal peduncle. No adipose crest on caudal peduncle. Margin of dorsal fin straight or convex. Caudal fin slightly emarginate. Largest known specimen 55 mm SL.</p> <p>One central and one lateral pores on each side of supratemporal canal, 6–8 pores in anterior infraorbital canal, 3–4 pores in posterior infraorbital canal, 7–9 supraorbital canal and 5–6 pores in mandibular canal. No suborbital flap or groove in male. Dorsal fin with 6½–7½ branched rays. Anal fin with 5½ branched rays. Caudal fin with 8+8 or 8+7 branched rays. Pectoral fin with 8-9 and pelvic fin with 7 branched rays. Body without scales. Lateral line incomplete, with 15–40 pores, often interrupted in posterior part, reaching to midpoint of area between tip of pectoral fin and dorsal fin origin, to midpoint between end of dorsal-fin base and anal-fin origin. Anterior nostril opening at end of a pointed flap-like tube. Posterior nostril oval, posterior tip of anterior nostril not overlapping, or just overlapping posterior nostril when folded backwards. Mouth small, slightly arched. Lips moderately thick. Lower lip medially interrupted. Upper lip without median incision. Processus dentiformis small and blunt. No median notch on lower jaw. Barbels short, inner rostral barbel not reaching base of maxillary rostral barbel; outer one reaching base of maxillary barbel. Maxillary barbel reaching vertical of anterior part of eye. No external sexual dimorphism observed.</p> <p> <b>Coloration.</b> Yellowish or cream background in life and formalin preserved individuals. Pattern very variable. Individuals with the most intensive pattern with a series of midlateral blotches on flank, fused into a stripe, series of saddles or blotches on back, and a marmorate pattern on upper part of the flank, between the saddles and the midlateral stripe. Lateral blotches behind dorsal and anal-fin origins reach below midlateral stripe in most individuals. In many individuals, pattern on back and flank plain-brown, darker above than below lateral midline, with a wide, indistinct midlateral stripe, darker than background.An irregularly shaped, dark brown or black bar at caudal-fin base. In front of bar, a whitish or yellowish triangle patch on upper and lower caudal peduncle. Cheeks dark olive or dark brown, ventral surface of head white or cream, head above cheeks dark brown. Pectoral-, pelvic fins yellowish, anal fin hyaline, caudal- and dorsal fins olive to dark brown. Caudal fin with small, elongated blotches on rays, forming a mottled pattern of one dark brown vertical row approximately in the middle of fin. Rays of distal and median part of dorsal fin and anterior half of pectoral fin with dark brown pigments.</p> <p> <b>Distribution</b>. <i>Turcinoemacheilus inexpectatus</i> is known from the Greater Zab in Iraq, the Lesser Zab and the Sirvan in both Iran and Iraq. A detailed distribution map was published by Kaya <i>et al</i>. (2023).</p> <p> <b>Etymology.</b> The new species is named <i>in</i> - for “not” and <i>expectatus</i>, Latin for “expected” because for 10 years, we had been confident that these populations were <i>T. kosswigi</i>, so their identification by Kaya <i>et al</i>. (2023) came as a great surprise. An adjective.</p> <p> <b>Habitat.</b> This species is typically found in fast-flowing, clear, and cold-water parts of rivers and streams, often in rapids and riffles containing coarse gravel or rocks. They usually inhabit interspaces in bottom substrate.</p> <p> <b>Remarks.</b> Finding <i>Turcinoemacheilus kosswigi</i> to be restricted to the upper Greater Zab drainage, and the occurrence of two distinct species of this genus in this tributary of the Tigris (Kaya <i>et al</i>. 2023), calls for the re-assessment of the conservation status of <i>T. kosswigi</i> i.e., Least Concern (LC) (Freyhof 2014). As the species assessed as <i>T. kosswigi</i> is here described as <i>T. inexpectatus</i>, the conservation status LC might be correct for this species. <i>Turcinoemacheilus kosswigi</i>, on the other hand, might have a much smaller range and potentially qualify for a threatened category (Vulnerable, Endangered, or Critically Endangered). Detailed collection of data and information on distribution and threats is therefore much encouraged, and could contribute to our understanding of the conservation status of the species.</p> <p> Naturally, it cannot be fully excluded that <i>T. kosswigi</i> and <i>T. inexpectatus</i> might co-occur or that both have a contact zone with potential for hybridisation. The loach fauna of the Greater Zab continues to be poorly studied, and more details on the distribution of both species is required.</p> <p> Four species of the <i>T.kosswigi</i> group (<i>T. kosswigi</i>, <i>T.minimus</i>, <i>T.ekmekciae</i>, <i>T. inexpectatus</i>) are indistinguishable by meristic counts and poorly distinguished by morphometric characters and colour pattern. Especially <i>T. ekmekciae</i> and <i>T. inexpectatus</i> demonstrate high morphological variability which creates substantial overlap in many characters. This variability can only be detected, if fish from several populations are examined, as there is a considerable variation between populations. A similar case was recently published by Freyhof <i>et al.</i> (2022) on the loaches of the <i>Oxynoemacheilus bergianus</i> group, in which a high variability in colour patterns and morphometric characters was found between different populations within the same monophyletic clade, making it impossible to distinguish different molecular groups. A wide range of K2P distance values was detected for 10 molecular groups in the <i>O. bergianus</i> group, all indistinguishable by external characters. The distances between these molecular clades ranged from 0.6–5.9%. Following a large analysis of K2P distances in morphologically diagnosable species in <i>Oxynoemacheilus</i>, a threshold of 2.9% was applied to delineate populations, distinguishable by molecular characters, from morphologically indistinguishable species.</p> <p> In the <i>T. kosswigi</i> group, all species (<i>T. kosswigi</i>, <i>T. minimus</i>, <i>T. ekmekciae</i>, <i>T. inexpectatus</i>) can be distinguished by morphological characters, even if these differences are small, and all species are separated by a K2P distances of more than 3.0% in their COI barcoding gene.</p> <p> For the <i>O. bergianus</i> group, it is worth noting that Turan <i>et al.</i> (2023) described two new synonyms of <i>O. simavicus</i> (<i>O. melenicus</i> and <i>O. sakaryaensis</i>) to assign names to poorly differentiated molecular groups, disregarding the data presented by Freyhof <i>et al.</i> (2022). Freyhof <i>et al.</i> (2022) already show that characters used later by Turan <i>et al.</i> (2023) to distinguish <i>O. simavicus, O. melenicus</i>, and <i>O. sakaryaensis</i> are very variable, and that they do not allow to distinguish these species.</p>Published as part of <i>Freyhof, Jörg & Jouladeh-Roudbar, Arash, 2024, Turcinoemacheilus inexpectatus, a new nemacheilid loach from the Tigris drainage (Teleostei: Nemacheilidae), pp. 172-180 in Zootaxa 5399 (2)</i> on pages 173-179, DOI: 10.11646/zootaxa.5399.2.6, <a href="http://zenodo.org/record/10494374">http://zenodo.org/record/10494374</a>
Glyptothorax vatandousti Jouladeh-Roudbar & Ghanavi & Freyhof 2023, new species
No full textGlyptothorax vatandousti, new species (Figs. 3–9) Holotype. BIAUBM 1-H, 1, 90 mm SL; Iran: Kermanshah prov., Kangavar stream at Kangavar Kohne, 34.34849, 47.98972. Paratypes. AJRPC 10, 3, 83–91 mm SL; FSJF 4113, 4, 74–89 mm SL; MNCN-ICTIO 296.950–296.953 4, 65 – 87 mmSL; MZLU L020 /000001-3, 3, 66 – 83 mm SL; same data as holotype. Material used in molecular genetic analysis. AJRPC A100, OQ883980; A102, OQ883981; same data as holotype. Diagnosis. Glyptothorax vatandousti is distinguished from its congeners in the Persian Gulf basin by a deep and short caudal-peduncle (caudal peduncle depth 1.1–1.3 in length vs. 1.3–1.8 in G. silviae, G. alidaeii, G. galaxias, G. sardashtensis, 1.6–2.5 in G. armeniacus, G. cous, G. daemon, G. sardashtensis; see Table 6 for details of all species, and G. steindachneri), a wider thoracic adhesive apparatus (apparatus length 0.8–1.1 in width vs. 1.1–1.8 in G. silviae, G. alidaeii, G. galaxias, G. hosseinpanahii, G. sardashtensis, G. pallens; see Table. 6 for details of these species), a roundish anterior end of medial pit (vs. pointed in G. pallens, G. shapuri, G. silviae, G. alidaeii, G. hosseinpanahii, G. galaxias), and without or with one pale, triangle-shaped blotch in front of dorsal-fin origin (vs. prominent in G. silviae, G. alidaeii, G. galaxias, G. armeniacus, G. daemon, G. pallens, G. kurdistanicus and G. hosseinpanahii). Glyptothorax vatandousti is closely related to G. galaxias, a species that occurs in the Karkheh drainage; but both species have not yet been recorded together. The new species is distinguished from G. galaxias by having 5–8 serrae on inner margin of ossified pectoral fin-ray (vs. 11–14), deeper body (21–25 vs. 17–21% SL and caudal-peduncle (13–16 vs. 10–12% SL), wider thoracic adhesive apparatus (apparatus length 0.8–1.1 in width vs. 1.2–1.6), shape of caudal fin (shortest middle caudal-fin ray 62–80% of the longest ray of upper caudal-fin lobe vs. 41–60%), blunt head (vs. pointed), few or very short anteromedial striae on thoracic adhesive apparatus (vs. many and long). From the additional species known from the Karkheh drainage, i.e. G. galaxias, G. alidaeii and G. cous, G. vatandousti is distinguished by the following combination of characters: from G. alidaeii by having 5–8 serrae on the inner margin of ossified pectoral fin-ray (vs. 11–12), shape of caudal fin (shortest middle caudal-fin ray is 62–80% of the longest ray of the upper caudal-fin lobe vs. 44–57%), deeper body (21–25 vs. 16–20% SL), shorter adipose-fin length (13–16 vs. 17–21% SL), wider thoracic adhesive apparatus (apparatus length 0.8–1.1 in width vs. 1.1–1.3), thoracic adhesive apparatus with few and short anteromedial striae (vs. many and long), head, back and flank with dark-brown blotches usually larger than eye diameter (vs. dark-brown blotches usually smaller than eye diameter), blunt and roundish head (vs. pointed), and rounded caudal-fin lobes (vs. pointed); from G. cous, by having the dorsal and lateral head and predorsal back having many ovoid or round warts (vs. with many large, elongated, bony tubercles), and few or very short anteromedial striae on thoracic adhesive apparatus (vs. many and long). The new species is distinguished from G. kurdistanicus, a species found in the upper Tigris south to the Sirvan drainage, by having moderately elevated thoracic adhesive apparatus with few and short anteromedial striae (vs. elevated thoracic adhesive apparatus with many long striae), and a longer caudal-peduncle (16 – 20 vs. 13 – 16% SL); from G. pallens, another species found in the Sirvan drainage, by having 5–8 serrae on inner margin of ossified pectoral fin-ray (vs. 11–13), thoracic adhesive apparatus moderately elevated (vs. strongly elevated), longer inner (31–45 vs. 12–23% HL) and outer mandibular barbel (50–81 vs. 32–43% HL), wider thoracic adhesive apparatus (apparatus length 0.8–1.1 in width vs. 1.2–1.4), shape of caudal fin (shortest middle caudal-fin ray 62–80% of the longest ray of the upper caudal-fin lobe vs. 44–52%), rounded caudal fin lobes (vs. pointed), and flank with small and large, blackish or dark-brown blotches (vs. lacking black or brown spots or blotches); from G. sardashtensis found in the Lesser Zab drainage, by having 5–8 serrae on inner margin of ossified pectoral fin-ray (vs. 10–14), deeper body (21–25 vs. 17–19% SL), greater distance between pectoral and pelvic-fin origins (31–40 vs. 29–31% SL), deeper caudal peduncle (13–16 vs. 10–11% SL), shorter adipose-fin (13–16 vs. 17–25% SL), shorter pectoral fin (13–19 vs. 25–27% SL), shape of caudal fin (shortest middle caudal-fin ray is 62–80% of the longest ray of the upper caudal-fin lobe vs. 51–58), wider thoracic adhesive apparatus (apparatus length 0.8–1.1 in width vs. 1.1–1.3), caudal peduncle depth 1.1–1.3 in its length (vs. 1.3–1.8), flank with small and large, blackish or dark-brown blotches (vs. plain flank, without spots or blotches or with few, very small, dark-brown dots on head, dorsal-, and adipose-fin bases), without, or a pale, triangle-shaped blotch in front of dorsal-fin origin (vs. three yellowish blotches, arranged in crescent-shaped pattern), and pelvic-fin origin completely behind vertical of dorsal-fin origin (vs. below or slightly behind vertical of dorsal-fin origin). Glyptothorax vatandousti is distinguished from G. silviae and G. shapuri by having 5–8 serrae on inner margin of ossified pectoral fin-ray (vs. 9–10 in G. shapuri, 8–11 in G. silviae), shape of caudal fin (shortest middle caudal-fin ray 62–80% of longest ray of upper caudal-fin lobe vs. 43–49% in G. silviae, 49–46% in G. shapuri (data from Mousavi-Sabet et al. 2021)), deeper body (body depth 21–25% SL vs. 17–19 in G. silviae), smaller eye (eye diameter 7 – 13% HL vs. 16–18 in G. shapuri (data from Mousavi-Sabet et al. 2021)), deeper caudal-peduncle (13–16 vs. 11–13% SL in G. silviae), shorter adipose-fin length (13–16 vs. 60–20% SL in G. silviae), flank with many black spots (vs. without spots in in G. shapuri), with small and large, blackish or dark-brown blotches usually larger than eye (vs. many, irregular shaped and set blotches smaller than eye in G. shapuri); from G. hosseinpanahii by having 5–8 serrae on inner margin of first pectoral fin-ray (vs. 9–10), deeper body (body depth 21–25 vs. 18–20% SL), shorter anal-fin base length (9–13 vs. 13–15% SL), shape of caudal fin (shortest middle caudal-fin ray is 62–80% of longest ray of the upper caudal-fin lobe vs. 46–51%), few or very short anteromedial striae on thoracic adhesive apparatus (vs. many and long), rounded caudal fin lobes (vs. pointed), and head, back and flank with dark-brown blotches larger than eye diameter (vs. irregular dark-brown spots or small blotches smaller than eye diameter); from G. armeniacus and G. daemon by having few, or very short anteromedial striae on thoracic adhesive apparatus (vs. many and long), and thoracic adhesive apparatus moderately elevated (vs. strongly elevated); and from G. steindachneri by having short adipose-fin, its length 0.5–0.7 times (vs. 1.5–3.0), larger than distance between base of last dorsal-fin ray and adipose fin origin, 5–8 serrae on inner margin of ossified pectoral fin-ray (vs. 13–17), medial pit of thoracic adhesive apparatus without striae (vs. with striae), and dorsal and lateral head and predorsal back with having many ovoid or round warts (vs. large, elongated, bony tubercles). ...Continued on the next page Description. Morphometric data in Table 3. Head depressed; body stout and subcylindrical. Dorsal head profile straight, predorsal profile convex: Profile rising from tip of snout to dorsal-fin origin, then almost straight, sloping softly ventrally from origin of dorsal fin to end of the body. Ventral profile straight to end of caudal peduncle. Pelvic-fin origin clearly behind vertical of dorsal-fin origin. Caudal-peduncle depth 1.1–1.3 times in length. Anus and urogenital openings located at vertical through middle of adpressed pelvic fin. Skin on head, back and flank covered by small, roundish or ovoid warts. Warts smaller and denser set on gill cover. Lateral line complete and midlateral. Head broad, triangular when viewed laterally and spade shape when viewed from above. Snout blunt. Anterior nare round, posterior nare ovoid, both separated by base of nasal barbel. Eye and pupil ovoid, horizontal axis longest; located in dorsal half of head. Largest individual recorded 91 mm SL. Barbels in four pairs. Maxillary barbel broad and thick, extending to, slightly in front of or beyond pectoral-fin base, velum at proximal part of barbel attached to head closer to posterior nare than to eye, many thick warts on outer base of velum, velum smooth. Nasal barbel broad, reaching beyond eye. Inner mandibular barbel extending to isthmus. Outer mandibular barbel reaching pectoral-fin origin or slightly beyond pectoral-fin base. Mouth inferior, a narrow premaxillary tooth band exposed when mouth is closed. Oral teeth small and villiform, in irregular rows on all tooth-bearing surfaces. Premaxillary teeth appearing in single broad semilunate band. Dentary teeth in a single crescentic band, consisting of two separate halves tightly bound at midline. Thoracic adhesive apparatus with striae or narrow longitudinal pleats located in a rhombic field extending from isthmus to base of second branched pectoral-fin ray. Anteromedial striae few and short (Figs. 6 and 8). Medial pit wide, without striae, its anterior end roundish. Anterolateral edges of thoracic adhesive apparatus almost straight or slightly concave. Length of thoracic adhesive apparatus 0.8–1.1 times its width. Dorsal fin with two visible unbranched rays and 5½ (n=15) branched rays. Anal fin with one unbranched and 5½ (2) or 6½ (13) branched fin rays. Pelvic fin with one unbranched and 5 (15) branched rays. Pectoral fin with one unbranched and 7 (1), 8 (13) or 9 (1) branched fin rays. Anterior margin of pectoral-fin smooth, posterior margin slightly concave, with 5–8 serrations. Caudal fin slighly forked with equal rounded lobes. Coloration. In formalin-fixed individuals: dorsal and lateral surfaces of head and body pale-grey to greyish brown, fading to pale-grey or beige on ventral surfaces of head and anterior belly, and on pectoral and pelvic-fin bases. Belly without any pattern. Head, back and flank with a fine, pale-brown mottled pattern overlaid by small and large, blackish or dark-brown blotches. Latero-sensory pores same colour as surrounding tissue. Adipose fin with a pale-grey blotch behind origin and a pale-grey posterior margin. All other fins with a dark-grey or blackish base, followed by a pale-yellowish band, thereafter a dark-grey or brown band and a yellowish margin; appearing as dark-grey or blackish fins with a whitish or yellowish band and margin; yellowish margin in caudal fin often absent, or reduced to a large or small blotch on each lobe. Pattern in fins dissociated and lost in large individuals. Maxillary and nasal barbels grey or blackish dorsally, pale-grey ventrally and velum pale-grey or beige. Mandibular barbels beige or pale-grey. Etymology. The species is named for Saber Vatandoust (Qaemshahr), for his contributions to the taxonomy of fishes in Iran. Saber Vatandoust was also the ichthyology professor of the first author, AJR, at the Azad Islamic University of Babol. A noun in genitive, indeclinable. Distribution. Glyptothorax vatandousti is found in the lower reaches of the Kangavar stream, particularly at its confluence with the Gamasiab River. These rivers are parts of the Karkheh drainage, a major tributary of the Tigris. In addition to the Gamasiab drainge, we have recorded this species in two additional locations: the Aran stream and the Chardavol River (depicted as red dots in Fig. 1). These records are over 10 years old, and despite several attempts, we were unable to find the species at these places since. Habitat. Unlike other Glyptothorax species from Western Asia, G. vatandousti was only found in shallow and slow-moving streams. Naturally, there has not been any study to decide if the ecology of G. vatandousti is different from other species of the genus. The Kangavar stream (Fig. 11), where this species was found in abundance, has a relatively narrow width of around 1.5 meters, clear water with a rubble bed, and moderately fast current. The habitat of G. vatandousti is facing serious threats due to human activities. Water from the Kangavar and Gamasiab is used for irrigation in nearby agricultural farms, which can significantly alter the water flow and quality, leading to habitat degredation. In addition, the frequent passage of trucks and other vehicles near the Kangavar result in soil erosion and sedimentation, which can negatively impact the species’ survival and reproduction.Published as part of Jouladeh-Roudbar, Arash, Ghanavi, Hamid Reza & Freyhof, Jörg, 2023, Glyptothorax vatandousti, a new species of torrent catfish from the upper Karkheh drainage in Iran (Teleostei: Sisoridae), pp. 37-58 in Zootaxa 5315 (1) on pages 44-55, DOI: 10.11646/zootaxa.5315.1.2, http://zenodo.org/record/813012
Data from: mapping endemic freshwater fish richness to identify high priority areas for conservation: an ecoregion approach
No full text<p>Freshwater ecosystems are experiencing accelerating global biodiversity loss. Thus, knowing where these unique ecosystems' species richness reaches a peak can facilitate their conservation planning. By hosting more than 290 freshwater fishes, Iran is a major freshwater fish hotspot in the Middle East. Considering the accelerating rate of biodiversity loss, there is an urgent need to identify species rich areas and understanding of the mechanisms driving biodiversity distribution. In this study, we gathered distribution records of all endemic freshwater fishes of Iran (85 species) to develop their richness map and determine the most critical drivers of their richness patterns from an ecoregion approach. We performed a generalized linear model (GLM) with quasi-Poisson distribution to identify contemporary and historical determinants of endemic freshwater fish richness. We also quantified endemic fish similarity among the 15 freshwater ecoregions of Iran. Results showed that endemic freshwater fish richness is highest in the Zagros Mountains while moderate level of richness was observed between Zagros and Alborz Mountains. High, moderate and low richness of endemic freshwater fish match with Upper Tigris & Euphrates, Namak, and Kavir & Lut Deserts ecoregions respectively. Kura - South Caspian Drainages and Caspian Highlands were the most similar ecoregions and Orumiyeh was the most unique ecoregion according to endemic fish presence. Precipitation and precipitation change velocity since the Last Glacial Maximum were the most important predictors of endemic freshwater fish richness. Areas identified to have the highest species richness have high priority for the conservation of freshwater fish in Iran, therefore, should be considered in future protected areas development.</p>
FIGURE 2. Alburnoides recepi, FFR 0 1101 in Alburnoides recepi, a junior synonym of Alburnus caeruleus (Teleostei: Cyprinidae)
No full textFIGURE 2. Alburnoides recepi, FFR 0 1101, holotype, male, 65 mm SL; stream Merzimen Euphrates River drainage, Turkey
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