Cerviniella danae Kihara & Arbizu, 2012, sp. nov.

• Published in: Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems
• Main Authors: Kihara, Terue C., Arbizu, Pedro Martínez
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Maxillopoda; Harpacticoida; Cerviniidae; Cerviniella; Cerviniella danae; Arctic; Arctic Ocean; Laptev Sea; laptev
• Online Access: https://zenodo.org/record/5616005; https://doi.org/10.5281/zenodo.5616005

Cerviniella danae sp. nov. (Figs 1–6 A, B, 16–17) Type locality. Arctic Ocean, Laptev Sea (77 ° 10.74 ' N, 126 ° 12.29 ' E), 1009 m depth. Type material. Holotype female dissected on 13 slides (reg. no. SMF 37027) from station PS 27 #047/ 2465 - 1, multi corer 1–4, collected 08/09/ 1993. Undissected paratypes consist of 2 females (reg. nos. SMF 37028 and 37029) from station PS 27 #047/ 2465 - 1, MUC 1–4, collected 08/09/ 1993. All material collected from the type locality by the junior author during Expedition ARCTIC’ 93, Leg ARK-IX/ 4 of RV Polarstern. Description. FEMALE. Total body length 835.2 –888.0 μm (N = 3; mean = 864.5 μm; holotype = 888.0 μm). Largest width measured at midlength of cephalic shield: 320.0– 335.2 μm (N = 3; mean = 328.2 µm; holotype = 320.0 μm). Body (Figs 1 A, 16 A–C) with no clear distinction between prosome and urosome, body somites gradually tapering posteriorly. Prosome (Figs 1 A, 16 A–C) 4 -segmented, with first pedigerous somite incorporated into cephalothorax. Cephalothorax with reticulated surface (Fig 1 B), anastomosing pattern more accentuated towards rostrum (Fig. 17 A) and along margins (Figs 1 A, 16 A–B); additional ornamentation consisting of sensilla and pores as illustrated in Figures 1 A, 16 A–B; posterior margin slightly serrate. Pedigerous somites with reticulation along posterior margins (Figs 1 A, 16 A–B, 17 B) and ornamentation consisting of sensilla as illustrated in Figures 1 A, 16 A–B; epimera of second to fourth pedigerous somites expanded posteriorly; posterior margins serrate. Urosome (Figs 1 A, 2 A–B, 16 A–C) 5 -segmented, comprising P 5 -bearing somite, genital double-somite, 2 free abdominal somites and anal somite. Urosomites with surface ornamentation consisting of sensilla and minute spinules, spinules more conspicuous ventrally; posterior margin serrate and with reticulated surface. Genital double-somite (Figs 1 A, 2 A–B, 16 A–B) original segmentation indicated by transverse, serrate surface ridge with reticulation and sensilla dorsally, and hook-like ...