Cystisoma latipes Stephensen

• Main Author: Zeidler, Wolfgang
• Format: Other/Unknown Material
• Language: unknown
• Published: 2003
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Cystisomatidae; Cystisoma; Cystisoma latipes; North Atlantic
• Online Access: https://zenodo.org/record/6276436; https://doi.org/10.5281/zenodo.6276436

Cystisoma latipes (Stephensen) (Figs 10­13) Thaumatops latipes Stephensen, 1918: 62 ­63, fig. 21. – Schellenberg 1927: 621, fig. 29. Cystisoma latipes – Pirlot 1938: 377, 379, 380, 384, 386. Pirlot 1939: 34. Brusca 1973: 9 (Table), 14. Brusca 1981 a: 19 (key), 39, fig. 5 d. Brusca 1981 b: 358, fig. 12 c. Vinogradov et al. 1982: 254 ­255, fig. 125. ? Cystisoma parkinsonii Stebbing, 1888: 1332 ­1333. ? Thaumatops parkinsonii – Stephensen 1918: 66 ­68, figs 28, 29. Schellenberg 1927: 623, fig. 32. ? Thaumatops longipes [misidentification] – Bovallius 1887 b: 558. Bovallius 1889: 47 ­52 (spec. B, non A). Type material The unique type of C. latipes, a male measuring 44 mm, is in the ZMUC (CRU 2828). The type locality is the North Atlantic Ocean, south of Ireland, 49 ° 22 ’N, 12 ° 52 ’W (Thor Stn. 81), 1350 m. Type material of synonyms The unique type of C. parkinsonii, a male measuring about 50 mm, is in the BMNH (1889.5.15.198). Stebbing (1888) originally described this species, referring to it as “ Cystisoma. Specimen F”, and proposed the name C. parkinsonii “if, in view of the great length of the upper antennae, it be necessary to separate this specimen from the others”. The specimen is very similar to C. latipes, differing in having slightly shorter first antennae, mandibles with only a medial tooth, and the basis of pereopod 7 slightly narrower but still relatively inflated proximally. Despite these differences, it appears to be the same as C. latipes, although the length of the first antennae could not be determined accurately, because the specimen is in pieces. Amongst the material examined there are other specimens of C. latipes with mandibles without lateral teeth and the basis of pereopod 7 relatively inflated proximally, compared to other species. Material examined (56 specimens) Types. Holotype male of C. latipes, approx. 44 mm: in spirit. Holotype male of C. parkinsonii, approx. 50 mm, specimen “F”, Challenger Stn. 196, north of Amboina, 0° 48 ’ 30 ”S, 126 ° 58 ’ 30 ”E, trawled 825 fathoms, 13 th ...