Echinoderes pilosus Lang 1949

• Main Authors: Sørensen, Martin V., Goetz, Freya E., Herranz, María, Chang, Cheon Young, Chatterjee, Tapas, Durucan, Furkan, Neves, Ricardo C., Yildiz, N. Özlem, Norenburg, Jon, Yamasaki, Hiroshi
• Format: Other/Unknown Material
• Language: unknown
• Published: 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Cephalorhyncha; Kinorhyncha; Cyclorhagida; Echinoderidae; Echinoderes; Echinoderes pilosus; Antarctic; George Islands; Grytviken; Seta; Antarc*
• Online Access: https://zenodo.org/record/4420027; https://doi.org/10.5281/zenodo.4420027

Echinoderes pilosus Lang, 1949 Figs 9–10; Tables 9–10 Emended diagnosis Echinoderes with middorsal spines on segments 4 to 8, and lateroventral spines on segments 6 to 9; all middorsal spines slender and flexible and projecting well beyond the posterior margin of their respective segments. Long and slender tubes present in ventrolateral positions on segment 2, lateroventral positions on segment 5, and in laterodorsal positions on 10. Incomplete midventral, intracuticular fissure present on anterior half of segment 2. Two middorsal, longitudinally aligned glandular cell outlets type on segment 1. Minute glandular cell outlets type 2 in subdorsal positions on segment 2, and in laterodorsal positions on segments 8 and 9. Tergal extensions of segment 11 short and pointed; margin of sternal extensions straight, with ventrolateral seta-like tuft of extended fringe tips. Females with female papillae with tubular substructure in ventrolateral positions on segment 7 and ventromedial positions on segment 8; males with ventrolateral sensory spots on segment 10. Material examined Lectotype (here designated) SOUTH GEORGIA ISLANDS • ♀; Grytviken; 54°16′59″ S, 36°30′29″ W; 22–23 May 1902; collected during the Swedish Antarctic Expedition in Grytviken; SMNH 3930. Specimen mounted for LM. Paralectotypes SOUTH GEORGE ISLANDS • 15 ♀♀, 18 ♂♂, 3 uncertain sex; same collection data as for lectotype; SMNH-1007, SMNH-9256 to 9282. SMNH-1007, SMNH-9256 to 9282. 9 ♀♀, 13 ♂♂ and 3 uncertain sex mounted for LM; 6 ♀♀, 5 ♂♂ mounted for SEM; Remarks Higgins (1986) mentions that he accessed the type material of E. pilosus in SMNH, mounted and observed two paratypic specimens. However, such mounted specimens were found in neither the SMNH nor the USNM. After examining the syntypes and providing the present redescription we choose, in the interest of assuring future taxonomic stability, to designate one of the female syntype as lectotype for Echinoderes pilosus with the catalogue number SMNH-3930, and consequently designate the remaining ...