193,114 research outputs found
Agauides Bartsch 1988
No full text<i>Agauides</i> Bartsch, 1988 <p> <b>Type species.</b> <i>Agauides cryosi</i> Bartsch, 1988.</p> <p> <b>Female.</b> Genitoanal plate with four to seven pgs on either side of GO (Bartsch 1988a: fig. 53, 1989b: fig. 11). GO in ventral position. Genital sclerites lack sgs. Number and shape of genital acetabula and spines not mentioned in the descriptions. Epimeral pores lacking.</p> <p> <b>Male, nymphs, larva.</b> Not known.</p> <p> <b>Remarks.</b> Two species are at present described from the northeastern and southern Pacific Ocean, collected in 600 and 1500 m depth (Bartsch 1988a, 1989b).</p>Published as part of <i>Bartsch, Ilse, 2015, The genital area of Halacaridae (Acari), life stages and development of morphological characters and implication on the classification, pp. 201-259 in Zootaxa 3919 (2)</i> on page 208, DOI: 10.11646/zootaxa.3919.2.1, <a href="http://zenodo.org/record/245246">http://zenodo.org/record/245246</a>
Die von Christo denen Gläubigen gethane herrliche Verheissung, Als die Durchlauchtigste Fürstin und Frau, Frau Elisabetha Juliana, Weyl. regierende Hertzogin zu Braunsch. und Lüneb. Gebohrne Hertzogin zu Schleßwig-Holstein [et]c. Des Durchlauchtigsten Fürsten und Herrn, Hn. Anthon Ulrichen, Hertzogen zu Braunschweig und Lüneburg, Hochgeliebte Frau Gemahlin ... Am 4 Febr. dieses 1704 Jahrs, Nachmittags um 2 Uhr, der Seelen nach, aus dieser mühseeligen Welt in die Himmlische und seelige Ewigkeit versetzet, Und An dem folgenden Son[n]tage Misericordias Domini ... eine Leich- und Trauer-Predigt gehalten wurde / aus einem ... selbst verordneten, und aufgeschriebenen Leich-Text, ex Apoc. XXI, 6.7. einfältig fürgestellet von Paulo Andr. Crebsio, P. in Klein-Winnigstädt
No full textAutopsie nach Ex. der ULB Sachsen-AnhaltVorlageform des Erscheinungsvermerks: Wolffenbüttel, Druckts Christian Bartsch, privilegirter Hof- und Cantzley-Buchdrucker
Halacarus multispinus Bartsch 1981
No full textHalacarus multispinus Bartsch, 1981 Halacarus multispinus: Bartsch (1981 a: 37–39, figs 1–9). Diagnosis. Length of female 967 µm. Frontal spine long and slender, its length almost half that of AD and 0.2 times that of idiosoma. Posterior part of AD linguiform. Pair of glp- 1 at 0.7. Pair of ds- 1 level with pair of glp- 1. Corneae and ocular plates absent. Canaliculi within striated integument. Pair of ds- 5 slightly anterior to level of glp- 4, ds- 6 level of glp- 5; setae removed from gland pores. Female GA rounded. Anterior pair of pgs level with posterior end of PE. Distance between pgs- 1 and anterior margin of GA equalling 1.6 times that between anterior margins of GA and GO. Ovipositor extending beyond GO to anterior margin of GA. Gnathosoma slender. Rostrum distinctly longer than gnathosomal base, extending to end of P- 2. Basal seta on P- 2 at about 0.7. Spine on P- 3 slender and pointed. Legs longer than idiosoma. Trochanters I to III with 1, 1, 1 (?) setae, basifemora I to III with 2, 3, 2 setae. Telofemur, genu and tibia I with 5, 2, 4 spiniform ventral setae. Basalmost ventral spine on telofemur I at 0.2. Ventromedial seta on genu II smooth. Tibia II with two bristle-like ventromedial and ventrolateral setae; distalmost of ventromedial setae delicately bipectinate. Tarsi I to IV with 2, 1, 1, 1 ventral setae, tarsi III and IV with four and three dorsal setae. Paired claws of all tarsi slender, without pecten. Remarks. Legs I and II bear an unusual large number of setae, none of the other Halacarus species has five spiniform ventral setae on telofemur I. Distribution and ecology. Indian Ocean, northeast of the island Mayotte, at 300–350 m depth.Published as part of Bartsch, Ilse, 2011, Halacarus socius (Acari: Halacaridae), description of the male and diagnoses of species of the Halacarus actenos group, pp. 18-40 in Zootaxa 2800 on pages 32-33, DOI: 10.5281/zenodo.27704
Acarothrix Bartsch 1990
No full textGenus <i>Acarothrix</i> Bartsch, 1990 <p> <b> <i>Diagnosis.</i> –</b> Dorsum with five pairs of dorsal idiosomatic setae, pair of adanal setae on anal plate and three to four pairs of gland pores; posterior pair of pores on cones. Pair of ds- 3 in about middle of OC. AE with epimeral pores. Male genital sclerites with pair of external genital acetabula. Palps four-segmented, second segment with one seta, third segment without setae, fourth segment with three setae in basal whorl. Genua shorter than telofemora and tibiae. Trochanters I to IV with one seta each. Basifemur II with three setae. Tibiae I to IV with two ventral setae each. Tarsus I with large ventral seta and one or two small apical setulae; tarsi II to IV without ventral setae. All tarsi with pair of parambulacral setae. Solenidion of both tarsus I and II in dorsolateral position. All tarsi with paired claws, central sclerite with claw-like process.</p> <p> <i>Type species</i>. <b>–</b> <i>Acarothrix palustris</i> Bartsch, 1990.</p>Published as part of <i>Bartsch, Ilse, 2006, Copidognathines (Acari: Halacaridae) In Mangroves Of Singapore. I. Description Of Three Species, pp. 83-92 in Raffles Bulletin of Zoology 54 (1)</i> on page 84, DOI: <a href="http://zenodo.org/record/4507985">10.5281/zenodo.4507985</a>
Halacarus griseus Bartsch 1987
No full textHalacarus griseus Bartsch, 1987 Halacarus griseus: Bartsch (1987: 75–79, figs 1–13). Diagnosis. Length of female 914–1025 µm, of male 790–884 µm. Epicuticula on plates and legs delicately reticulate or with fingerprint-like to punctate ornamentation. Frontal spine long, its length equalling 0.4 times that of AD and 0.1–0.2 times that of idiosoma. Gland pores on lateral protrudings, at 0.6–0.7 relative to length of AD. Pair of ds- 1 immediately anterior to glp- 1. Part of AD posterior to glp- 1 spiniform in outline. Cornea small, round; canaliculus in striated integument. Pairs of ds- 5 and ds- 6 immediately adjacent to glp- 4 and glp- 5, respectively. Female GA rounded. Pair of pgs- 1 at level of posterior part of PE. Distance from pair of pgs- 1 to margin of female GA about 0.9 times that between anterior margins of GA and GO. Anterior margin of GA almost halfway between pgs- 1 and GO. Anterior margin of male GA rounded. Pair of pgs- 1 level with posterior seta on PE, anterior margin of GA extending just beyond level of edge of PE. GO in middle of GA, surrounded by about 90 pgs. Gnathosoma about 2.4 times longer than wide. Rostrum extending beyond P- 3, its length almost twice that of gnathosomal base. Basal seta of P- 2 at 0.8. Telofemur, genu and tibia I with 2, 2, 4 tapering ventral setae. Basalmost ventral seta on telofemur I at 0.6. Trochanters I to IV with 1, 1, 2, 1 setae, basifemora I to IV with 2, 4, 2, 2 setae. Ventromedial setae on genu II and tibia II bipectinate. Tarsi I to IV with 2, 2, 4 –5, 4 ventral setae; tarsi III and IV with four and three dorsal setae. Paired claws with small accessory process but no pecten. Remarks. This is a large species with long frontal spine and rostrum, slender palps and slender legs. Differences to the long-spined and long-legged H. leptopus Bartsch, 2002 and H. longiunguis Police, 1909 are listed below. Distribution and ecology. Mediterranean, from sublittoral sediment (11–20 m depth).Published as part of Bartsch, Ilse, 2011, Halacarus socius (Acari: Halacaridae), description of the male and diagnoses of species of the Halacarus actenos group, pp. 18-40 in Zootaxa 2800 on pages 29-30, DOI: 10.5281/zenodo.27704
Acarothrix palustris Bartsch 1990
No full text<i>Acarothrix palustris</i> Bartsch, 1990 <p>(Figs. 17-20)</p> <p> <i>Acarothrix palustris</i> Bartsch, 1990: 205-207, figs. 1-14.</p> <p> <b> <i>Material examined.</i> –</b> One female, ZRC.ARA.483, Singapore, northern coast, end of Lim Chu Kang Road, <i>Cladophora</i> mat on muddy and sandy sediment, coll. I. Bartsch, 7 Oct.2004; one larva, ZRC.ARA.484, collecting data as above; one female, SMF, collecting data as above; one female, ZMH, collecting data as above; one male, ZMH, collecting data as above; one protonymph, ZMH, collecting data as above. One larva, author’s collection, Singapore, southern coast, river Pandan, sediment, green algae and epibiota on <i>Avicennia</i> pneumatophores in a rockpool, coll. I. Bartsch, 27 Sep.2004.</p> <p> <b> <i>Diagnosis.</i> –</b> Length of idiosoma 280-320 µm. PD with pair of longitudinal porose costae with narrow cerotegumental ridges, remainder of plate reticulate. OC with two corneae. PD with two pairs of gland pores. Pair of ds- 2 in margin of OC. Pair of ds-4 and ds- 5 in lateral margin of PD, almost equidistant relative to anterior pair of gland pores. Female and male GA almost ovate. Male GA with 11-12 pairs of pgs, interval between anterior margin of GA and that of GO equalling length of GO. Tibiae I and II with six setae each. Tibiae I to III each with one bipectinate and one smooth, slender ventral seta; on tibiae IV both ventral setae smooth and slender. Paired claws almost smooth.</p> <p> <b> <i>Colour.</i> –</b> Gut content pale or slightly brown; the male examined darker than females. Dorsum with three small black eye spots.</p> <p> <b> <i>Complementary description.</i> – Adults:</b> Length of female 294- 320 µm, of male 280 µm. Shape of dorsal plates as illustrated (Fig. 17). Costae of PD approximately 20 µm wide, with narrow cerotegumental borders. Pair of epimeral pores at end of apodemes between epimera I and II (Fig. 18); porus covered with numerous setiform tines. Male with 11-12 pairs of pgs; its GO large, distance to anterior margin of GA equalling length of GO (Fig. 19). Basi- and telofemora I and II with numerous filaments, trochanters, basi- and telofemora III and IV with filaments fused to cerotegumental lamellae. Leg chaetotaxy: leg I, 1, 2, 5, 4, 6, 6; leg II, 1, 3, 5, 4, 6, 4; leg III, 1, 2, 2-3, 3, 5, 4; leg IV, 1, 2, 2-3, 3, 5, 3. Telofemora III and IV in general with 2/1 dorsal/ventral setae, rarely ventral seta absent. Tibiae I, II and III each with short, wide bipectinate seta, on tibia IV this seta slender and smooth. Claws almost smooth though vestiges of accessory process present. Median claw of all tarsi bidentate, that claw of tarsus III and IV with long upper and lower tooth and therefore median claws somewhat larger than on tarsi I and II.</p> <p> <b>Protonymph:</b> Length of idiosoma 217 µm. Dorsal and ventral plates smaller than in adults. Leg chaetotaxy: leg I, 1, 2, 3, 4, 5, 6; leg II, 1, 2, 3, 4, 5, 4; leg III, 1, 2, 2, 3, 5, 3; leg IV, 0, 1+2 (basi- plus telofemur), 3, 5, 3. Tibiae I, II and III each with one of the two ventral setae being short, wide and pectinate, the other seta slender and smooth. Tibia IV with two smooth ventral setae. Both tarsi III in the protonymph examined with three instead of four dorsal setae.</p> <p> <b>Larva:</b> Length of idiosoma 177 µm. Shape of dorsal and ventral plates as illustrated in Bartsch (1990: figs. 8 and 9). PD with pair of cerotegumental ridges. Pair of epimeral pores at about the level of end of apodemes. Leg chaetotaxy: leg I, 1, 1+3 (basi- plus telofemur), 4, 5, 6; leg II, 1, 1+3, 4, 5, 4; leg III, 1, 1+2, 3, 5, 4. Pectinate seta of tibia I and II wide, less than height of each segment. Tibia III with two almost smooth ventral setae. Distance between two basal setae of tarsus III more than height of that segment (Fig. 20).</p> <p> <b> <i>Remarks.</i> –</b> The PD and GA of the Singapore specimens illustrated are slightly more slender than in the holotype and paratype from Hong Kong. The width of the plates proved to vary slightly in the material from Singapore.</p> <p> The adults of the two <i>Acarothrix</i> species (<i>A. ampliumeris</i> and <i>A. palustris</i>) present in Singapore mangroves can be distinguished on the basis of the length of OC, presence or absence of corneae, shape of AE, length of PE, and shape of ventral setae on tibiae II and IV. Juveniles which have small dorsal and ventral plates can be distinguished on the basis of presence or absence of corneae, position of epimeral pores relative to length of apodemes, and size of the median claws on the posterior tarsi. In addition, larvae can be distinguished on the basis of presence or absence of cerotegumental ridges on the PD and position of the basal seta on tarsus III.</p> <p> <i> <i>Distribution. –</i> Acarothrix palustris</i> inhabits mangroves in Hong Kong and Singapore (Bartsch, 1990, and present record).</p>Published as part of <i>Bartsch, Ilse, 2006, Copidognathines (Acari: Halacaridae) In Mangroves Of Singapore. I. Description Of Three Species, pp. 83-92 in Raffles Bulletin of Zoology 54 (1)</i> on page 87, DOI: <a href="http://zenodo.org/record/4507985">10.5281/zenodo.4507985</a>
Agauopsis longirostris Bartsch 2015
No full textAgauopsis longirostris Bartsch 2015: figs 7A-M, 8A-J. Short description — Length of female 510 µm, of male 450 – 460 µm. Dorsal plates with costae. Costae with groups of three to six canaliculi, these porose groups hardly delimited and costae without reticulate ornamentation. Remainder of plate reticulated, each polygon including about five to eight delicate canaliculi. AD 1.2 times longer than wide. Pair of ds-1 level with gland pores; transverse bar of H-shaped costa on AD at 0.5. Each OC with oblique costa; gland pore immediately posterior to cornea, at 0.4. PD with pairs of longitudinal medial and marginal costae. Medial costae in anterior half three to four porose groups wide. Female and male PD 1.1 and 1.3 times longer than AD, respectively. Female PD 1.1 times longer than wide, male PD prolonged, 1.2 times longer than wide. PD with pair of ds- 5 in lateral margin of medial porose costae, at 0.4 relative to length of PD. Polygons of ventral plates with 9-15 canaliculi; canaliculi in centre as well as along periphery of each polygon. Anterior margin of female and male GA truncate. Male GA with 36-38 perigenital setae arranged in two rings around GO and a pair of outlying setae distinctly separated from outer ring of pgs. Gnathosoma elongate, 2.1-2.3 times longer than wide. Rostrum 1.7-1.8 times longer than gnathosomal base. Tectum with scaliform lamella. Palps elongate. P-2 4.1-4.2 times longer than high. Length of P-4 more than twice that of P-3. Two setae in about middle of P-4 almost equal-sized. Telofemora III and IV 2.1-2.2 times longer than high. Tibiae II to IV with 3, 2, 2 spiniform setae, either pectinate or dentate. Claws II to IV with numerous delicate tines along medial flank. Remarks — Agauopsis longirostris is characterized by its slender rostrum and palps, the P-2 are 4.1-4.2 times longer than high, in the other species known from the Indo-West Pacific the length of the P-2 is less than 3.5 times the height (width). Distribution and biology — Singapore. The present records are from algal turf from sheltered areas (mangroves) as well as moderately exposed sites (Bartsch 2015).Published as part of Bartsch, I., 2015, The Agauopsis brevipalpus group (Acari: Halacaridae), descriptions of tropical Indo-West Pacific species, a key to all species, their geographical distribution and reflections on dispersal routes, pp. 147-169 in Acarologia 55 (2) on page 155, DOI: 10.1051/acarologia/20152158, http://zenodo.org/record/540391
Agauopsis arborea Bartsch 2003
No full textAgauopsis arborea Bartsch, 2003 Agauopsis arborea Bartsch 2003: 242-247, figs 1A-K, 2A-K. Agauopsis arborea, Bartsch 2005: fig. 8B; 2015: fig. 6A-P. Short description — Length of female 415 – 434 µm, of male 392 – 395 µm. Integument of both costae and areas outside costae panelled. Polygons within medial costae of PD mostly with about 10- 12 canaliculi, polygons between costae with five to eight canaliculi. Medial costae on PD approximately three porose panels wide. AD about as long as wide (1.0-1.1 times). Posterior margin of AD slightly concave. Transverse bar of H-shaped costa at 0.5-0.6; pair of ds-1 slightly posterior to the level of glp-1. OC elongate, 1.5 times longer than wide, and extending posteriad to or beyond the level of ds-4. Distance between glp and posterior cornea almost the same as that between glp and pc; glp at 0.4-0.5. In female PD 1.2 times longer than wide, anterior margin somewhat protruding (six females examined) and slightly extending anteriad beyond level of ds-4. In male PD longer, 1.4 times longer than wide, its anterior margin ovate. Pair of ds- 5 in lateral margin of medial costae, at about 0.5 relative to length of PD, in both female and male. Ventral plates evenly reticulated, each polygon with about 8-16 canaliculi; canaliculi mainly arranged along periphery of polygons. Female GA about as long as wide and as long as AE; anterior margin of GA wide and truncate. Length of GO 0.6 times that of GA. Male GA longer than AE and about as long as wide, anterior margin slightly arched; 43-49 pgs arranged around GO, 14-18 setae in an inner ring, 29-31 setae in an outer ring and two setae outlying. That pair removed from margins of plate. Distance from anterior margin of GO to that of GA somewhat less than length of GO. Spermatopositor extending to anterior margin of GA, its length 0.6 times that of GA. Gnathosoma 1.7 times longer than wide. Tectum with short truncate lamella. Rostrum shorter (0.8 times) than gnathosomal base. P-2 cylindrical, 2.7 times longer than high. P-4 short, its length (without apical spurs) 0.4 times that of P-2; with one long and one short seta in basal third. Telofemur, genu, tibia, and tarsus I ventrally with 4, 2, 3, 1 dentate, bluntly ending spines, respectively. Ventromedial spine on genu I longer than ventral one. Tibia II with wide bipectinate ventromedial seta and one to two ventral setae. Tibiae III and IV with pair of smooth tapering setae, length of setae same as height of tibiae. Telofemora III and IV 2.2-2.3 times longer than high. Tarsi III and IV without fossa membranes. Claws on tarsus II with line of minute tines along outer lateral and inner medial flank of claw arc. Claws III and IV with accessory process and a few very small tines (<1µm). Variants — In general telofemur I bears four ventral spines but specimens have been found which have five or three spines on one of the legs (Bartsch 2015). Tibia I of species of the brevipalpus group bears three spiniform ventral setae, amongst the material from the type locality one female had four spines (Bartsch 2003). Amongst 16 adults studied, 10 had three ventral setae on both tibiae II, three a combination of three and two setae and another three only two setae on both tibiae (Bartsch 2003, 2015). Remarks — The most marked character of Agauopsis arborea is the pair of tapering ventral setae on tibiae III and IV, a character shared with A. dissimilis n.sp. (description below), but in contrast to the latter species, the rostrum of A. arborea is shorter and the P-4 bear two setae instead of a single seta. Distribution and Biology — Dampier, Western Australia, and Singapore. All present records are from algal turf of red, brown and green algae (Bostrychia, Caloglossa, Chaetomorpha) growing in mangroves on trunks and pneumatophores (Bartsch 2003, 2015).Published as part of Bartsch, I., 2015, The Agauopsis brevipalpus group (Acari: Halacaridae), descriptions of tropical Indo-West Pacific species, a key to all species, their geographical distribution and reflections on dispersal routes, pp. 147-169 in Acarologia 55 (2) on page 151, DOI: 10.1051/acarologia/20152158, http://zenodo.org/record/540391
Halacarus fuscatus Bartsch 1993
No full textHalacarus fuscatus Bartsch, 1993 Halacarus fuscatus: Bartsch (1993 b: 56–59, figs 7 A–E, 8 A–D; 2007 b: 376, fig. 7 F, G). Diagnosis. Length of female 605–750 µm, of male 470–620 µm. Frontal spine triangular, moderately long; its length 0.4 and 0.1 times that of AD and idiosoma, respectively. Posterior part of AD short, linguiform and with wide, truncate margin. Pair of glp- 1 at 0.7. Pair of ds- 1 in margin or slightly outside AD, setae distinctly posterior to level of glp- 1. Ocular plate small, ovate, with cornea and canaliculus. Pairs of ds- 5 and ds- 6 medial to and distinctly removed from glp- 4 and glp- 5, respectively. Anterior margin of female GA wide, rounded. Pair of pgs- 1 slightly closer to margin of GA than to level of end of PE; its distance to anterior margin of GA equalling 0.4 times interval between margins of GA and GO. Male GA widest in middle of plate. One pair of pgs within striated integument, about 120 pgs around GO. Gnathosoma 1.7 times longer than wide. Rostrum longer than gnathosomal base, extending to end of P- 2. Basal seta on P- 2 at 0.6. Spine on P- 3 blunt. Epicuticula on legs delicately reticulated. Trochanters I to IV with 1, 1, 2, 1 setae, basifemora I to IV with 2, 4, 2, 2 setae. Telofemur, genu and tibia I with 2, 2, 4 spiniform and tapering ventral setae. Basalmost ventral seta on telofemur I at 0.4. Ventromedial seta on genu II and posterior one of ventromedial setae on tibia II bipectinate. Tarsi I to IV with 2, 1, 1, 1 ventral setae; tarsi III and IV with four (rarely three) and three dorsal setae. Paired claws with large accessory process, each with a cluster of about 12 tines. Remarks. The integument of the legs of H. fuscatus is yellowish-brown, a colour unusual amongst Halacarus species. Distribution and ecology. Australia, Western Australia, Rottnest Island and Esperance. The species lives amongst the epiflora of seagrass, algal fronds and sponges.Published as part of Bartsch, Ilse, 2011, Halacarus socius (Acari: Halacaridae), description of the male and diagnoses of species of the Halacarus actenos group, pp. 18-40 in Zootaxa 2800 on page 29, DOI: 10.5281/zenodo.27704
Agauopsis arabia Bartsch and Chatterjee 2001
No full text<i>Agauopsis arabia</i> Bartsch and Chatterjee, 2001 Figure 1 A-E <p> <i>Agauopsis arabia</i> Bartsch and Chatterjee 2001: 322- 326, fig. 1-12.</p> <p> Additional material examined — Two females, Bay of Bengal, Andaman Islands (by T. Chatterjee forwarded to the author for identification; cf. Chatterjee <i>et al.</i>, 2004).</p> <p> Short description — Length of female 450 – 490 µm, of male 416 µm (according to Chatterjee <i>et al.</i>, 2004, female 450 – 500 µm, male 410 – 450 µm). Dorsal plates with costae. Surface of costae not reticulated but canaliculi arranged in groups. Integument between costae with epicuticular droplets forming a reticulum; canaliculi within reticulum (polygons) more delicate than within costae. AD slightly more than 1.2 times longer than wide. Transverse costa on AD at about 0.5 and more narrow than longitudinal costae, middle part slightly curved posteriad (Figure 1A). Pair of ds-1 level with gland pores. OC 1.4 times longer than wide; glp on OC removed from posterior cornea, situated about halfway between that cornea and pc (Figure 1B) or at 0.4 along lateral margin of OC. PD of female and male almost equal-shaped, 1.2-1.3 times longer than wide. Medial costae on PD rather narrow, width in middle part of plate equalling three groups with canaliculi, else costae two groups wide. Pair of ds-4 level with or immediately posterior to edge of OC; pair of ds- 5 in anterior half of PD, outside costae, pair of ds-6 on PD.</p> <p>Ventral plates faintly reticulated, with rather evenly spread canaliculi within each polygon, mostly with (6-)11-17(-18) canaliculi per polygon. Anterior margin of female GA truncate, that of male slightly convex. Male with 36-39 pgs around GO and pair of outlying setae. That pair of setae about halfway between ring of pgs and lateral margin of GA. Interval between anterior margin of each GA and GO equalling about length of GO. Spermatopositor large, 0.7 of length of GA and extending to anterior margin of that plate.</p> <p>Length of gnathosoma 2.1-2.2 times its width. Rostrum somewhat longer (1.1-1.2 times) than gnathosomal base. P-2 2.7-2.9 times longer than high (Figure 1D). P-4 twice as long as P-3, its two basal setae almost equal in length. Tectum with scaliform lamella (Figure 1C).</p> <p>Tibia II ventrally with one bipectinate and two dentate, spiniform setae. Tibiae III and IV with two dentate, spiniform setae. Telofemora III and IV 2.0-2.2 times longer than high. Ventral seta on telofemora III and IV in apical half. Tarsi III and IV with short lateral fossa membranes. Claws II to IV each with minute accessory process and pectines with delicate tines (Figure 1E).</p> <p> Remarks — The rostrum of <i>Agauopsis arabia</i> is slightly longer than the gnathosomal base whereas in most of the species mentioned from the tropical Indo-West Pacific the rostrum is shorter than the base, exceptions are <i>A. longirostris</i> Bartsch, 2015 and <i>A. moorea</i> Bartsch, 1992. The rostrum of <i>A. longirostris</i> is distinctly longer (1.7-1.8 times) than the basis, that of <i>A. moorea</i> 1.0-1.1 times longer. Differences between <i>A. arabia</i> and <i>A. moorea</i> are in the position of the gland pore on the OC, in the anterior (<i>A. arabia</i>) and posterior half (<i>A. moorea</i>); furthermore, males of <i>A. moorea</i> have a small spermatopositor which does not extend to the anterior margin of the GA.</p> <p> Distribution and Biology — Arabian Sea (Goa, Kerala), Bay of Bengal (Andrah Pradesh, Andaman Islands) (Bartsch and Chatterjee 2001; Chatterjee <i>et al.</i> 2004; Chatterjee and Guru 2011). Most records are from tidal algae.</p>Published as part of <i>Bartsch, I., 2015, The Agauopsis brevipalpus group (Acari: Halacaridae), descriptions of tropical Indo-West Pacific species, a key to all species, their geographical distribution and reflections on dispersal routes, pp. 147-169 in Acarologia 55 (2)</i> on pages 149-150, DOI: 10.1051/acarologia/20152158, <a href="http://zenodo.org/record/5403910">http://zenodo.org/record/5403910</a>
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