528 research outputs found
Adaugammarus Sidorov, Gontcharov and Sharina 2015
No full textGenus Adaugammarus Sidorov, Gontcharov and Sharina, 2015b Adaugammarus Sidorov, Gontcharov and Sharina, 2015b: 20 [type species: Adaugammarus pilosus Sidorov, Gontcharov and Sharina, 2015b; by original designation]. – – Zenkevitchia Birstein, 1941: 11 [in part = sandroruffoi species group, syn. nov.].Published as part of Sidorov, Dmitry, Taylor, Steven J., Sharina, Svetlana & Gontcharov, Andrey, 2018, Zenkevitchiidae fam. nov. (Crustacea: Gammaroidea), with description of new subterranean amphipods from extremely deep cave habitats, pp. 1509-1535 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (23 - 24) on page 1518, DOI: 10.1080/00222933.2018.1482017, http://zenodo.org/record/517487
Adaugammarus kasiani Sidorov & Taylor & Sharina & Gontcharov 2018, sp. nov.
No full text<i>Adaugammarus kasiani</i> Sidorov sp. nov. <p>(Figures 2a, 4a, 5-8)</p> <p> <i>Material examined</i></p> <p>Holotype specimen (X47640 /Cr-2236- FEFU), adult male, ~17.0 mm, Krubera Cave (sampling depth – 1697 m, Non-Kujbyshevskaja Series), Arabika massif, Orto-Balagan valley, Gagra District, Western Caucasus, Abkhazia, 22 August 2015, coll. Y. Sophinija, G. Samokhin.</p>Published as part of <i>Sidorov, Dmitry, Taylor, Steven J., Sharina, Svetlana & Gontcharov, Andrey, 2018, Zenkevitchiidae fam. nov. (Crustacea: Gammaroidea), with description of new subterranean amphipods from extremely deep cave habitats, pp. 1509-1535 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (23 - 24)</i> on page 1518, DOI: 10.1080/00222933.2018.1482017, <a href="http://zenodo.org/record/5174871">http://zenodo.org/record/5174871</a>
Pseudocrangonyx kseniae Sidorov 2012
No full textPseudocrangonyx kseniae Sidorov, 2012 (Figs 3 D, 64–69) syn.: Pseudocrangonyx kseniae Sidorov, 2012, p. 30, figs 1–5, (orig. descrip.). Diagnosis (refined, cf. Sidorov, 2012, p. 31). Small-sized species with marked secondary sexual dimorphism. Dorsal surface of body segments smooth (Fig. 3 D), teretial, bearing detached fine setae. Eyes absent. Body unpigmented. Interantennal lobe of the head tapered; inferior antennal sinus distinct. Antenna 1 about 50 % length of body. Palp mandible article 3 with 2 B-seta, 15 D-setae and 3 E-setae. Ventral surface of pereonites 2–7 with sternal humps (blisters). Pereopod 6 as long as pereopod 7. Urosome without “ecdysial setae”. Uropod 1 with 1 basofacial seta. Inner rami of male uropods 1–2 with serrate setae. Telson entire. Body length 4.2–5.7 mm (females), 4.2 mm (male). Material examined. Male (4.2 mm, fragment without head part), X 38653 /Cr- 1469 -FEFU, Russia, Primory Territory, Lasovsky District, ~ 3 km E of Laso, Kievka River (43 ° 22.160 ' N 133 ° 55.485 ' E), 217 m above sea level, subterranean waters (hyporea), 3 Aug 2009, coll. D.A. Sidorov & K.A. Semenchenko. Description. Male (4.2 mm, fragment), X 38653 /Cr- 1469 -FEFU, sexually dimorphic characters. Pereon. Coxal plates 1–4 (Figs 64, 65) shallow, sub-rectangular but plate 2 somewhat roundish. Gnathopod 1 (Fig. 64), carpus 0.5 × as long as propodus, rastellate setae absent; propodus palm sub-transverse, defining angle distinct, palm with cutting margin crenulated, palm with 4 distally notched robust setae in two rows and 8 distally notched robust setae near defining angle. Gnathopod 2 (Fig. 65), carpus 0.8 × as long as propodus, rastellate setae absent; propodus palm sub-transverse, defining angle distinct, palm with cutting margin crenulated, palm with 5 distally notched robust setae in 2 rows and 4 distally notched robust setae near defining angle. Pereopods 3 and 4 with a row of long and short setae on posterior margin; carpus as long as propodus. Pleon. Uropod 1 (Fig. 66): outer ramus armed with 1 robust seta; inner ramus with 1 serrate seta on apex. Uropod 2 (Fig. 67): articles armed with knife-like strong setae; outer ramus armed with 1 robust seta; both rami bearing serrate setae sub-apically and apically. Uropod 3 (Fig. 68): proximal article of outer ramus 2.3 × as long as peduncle, bearing 2 sets of setae on lateral margin. Telson (Fig. 69): 1.8 × as long as uropod 3 peduncle; 0.3 × longer than broad.Published as part of Sidorov, Dmitry A. & Gontcharov, Andrey A., 2013, Studies on subterranean amphipod crustaceans of Primory, Russia. Part 1. Three new species of the genus Pseudocrangonyx from springs and other groundwater habitats in far eastern Russia, pp. 547-567 in Zootaxa 3693 (4) on page 561, DOI: 10.11646/zootaxa.3693.4.8, http://zenodo.org/record/21573
Zenkevitchia karamani, a distinct new species of admirabilis-group (Crustacea: Amphipoda: Typhlogammaridae) from Abkhazia
No full textSidorov, Dmitry A. (2016): Zenkevitchia karamani, a distinct new species of admirabilis-group (Crustacea: Amphipoda: Typhlogammaridae) from Abkhazia. Ecologica Montenegrina 9: 21-30, DOI: 10.37828/em.2016.9.
Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context
No full textSidorov, Dmitry (2023): Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context. Zootaxa 5357 (3): 342-374, DOI: 10.11646/zootaxa.5357.3.2, URL: http://dx.doi.org/10.11646/zootaxa.5357.3.
Figure 1 in Zenkevitchia karamani, a distinct new species of admirabilis-group (Crustacea: Amphipoda: Typhlogammaridae) from Abkhazia
No full textFigure 1. Map showing the position of sampling site and distribution of Typhlogammaridae species in Balkans (red dots) and Caucasus (blue dots). Inset shows habitus of Z. karamani, sp. n., holotype (photo by D. A. Sidorov).Published as part of <i>Sidorov, Dmitry A., 2016, Zenkevitchia karamani, a distinct new species of admirabilis-group (Crustacea: Amphipoda: Typhlogammaridae) from Abkhazia, pp. 21-30 in Ecologica Montenegrina 9</i> on page 22, DOI: 10.37828/em.2016.9.4, <a href="http://zenodo.org/record/8033395">http://zenodo.org/record/8033395</a>
Supplementary materials for: Sidorov 2023
No full textSupplementary materials for: Sidorov, 2023, Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a large-scale biogeographical context. Zootaxa 5357 (3): 342–374. doi: https://doi.org/10.11646/zootaxa.5357.3.2SUPPLEMENTARY FILE 1. Characteristics of groundwater sampling sites in Primorye in 2009-2010.SUPPLEMENTARY FILE 2. Geolocation information.SUPPLEMENTARY FILE 3. Additional information about the literature survey and geographic distribution data of Asellus, Calasellus-Columbasellus and Caecidotea-Proasellus macro-groups on Figure 2.SUPPLEMENTARY FILE 4. SEM microphotographs displaying relevant morphological features of a new species.SUPPLEMENTARY FILE 5. Taxonomic list of macro- and meiofauna found in this study, and stations (sample codes as in Electronic Supplement 1) where it was collected, with the available data on species distributional ecology.SUPPLEMENTARY FILE 6. NEXUS file including character matrix for Asellidae used in analysis.--scripts.zip other supporting materials</p
Supplementary materials for: Sidorov et al.
No full textSupplementary materials for: Sidorov et al.1) SEM.ZIP - scanning electron microphotographs2) script.zip - for GMT 4.5.14. with location of the sampling sites3) seqs_Pseudocrangonyx.fas - FASTA alignment dataset4) COI-tree(unrooted).pdf - BioNJ tree inferred from COI alignment dataset</div
Three new remarkable amphipod species (Crustacea: Gammaridae) from springs and subterranean waters of Central Asia
No full textSidorov, Dmitry, Hou, Zhonge, Sket, Boris (2018): Three new remarkable amphipod species (Crustacea: Gammaridae) from springs and subterranean waters of Central Asia. Zootaxa 4444 (4): 437-461, DOI: 10.11646/zootaxa.4444.4.
Stygobromus Sidorov, Holsinger & Takhteev, 2010, n. sp.
No full textRemarks on Stygobromus morphology Morphological investigation of the Siberian Stygobromus with assistance of SEM revealed additional characters that appear to be taxonomically significant. They include: (1) a naked vestigial segment on the tip of antennae 1 and 2 approximately 10 mkm long (Figs 68, 69); and (2) a “squamiferous membrane” located along the inner margin of the propodi of gnathopods 1, 2 (Figs 71, 73) in both new species. In S. anastasiae n. sp. a similar “squamiferous membrane” is located on inner face of both gnathopod propodi at the point of nail origin (Fig. 72). Although this character is found in both sexes, males (Fig. 74) and females (Fig. 75) show some differences in the shape of scales, but which are probably related to age differences of individuals. The term “squamiferous membrane” was used earlier by Henry & Magniez (1995) in a description of the morphology of the asellid isopod male pleopod 2. However, this morphological structure has apparently not been observed in crangonyctid amphipods until now. The “squamiferous membrane” may represent a complicated microtrich characterized by the fusion at the base of bunches of cuticular microtrichs of different lengths (Mekhanikova & Takhteev 2008).Published as part of Sidorov, Dmitry A., Holsinger, John R. & Takhteev, Vadim V., 2010, Two new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from Siberia, with new data on Stygobromus pusillus (Martynov) and remarks on morphology and biogeographic relationships, pp. 41-58 in Zootaxa 2478 on page 55, DOI: 10.5281/zenodo.19535
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