Ectinosoma gothiceps Sars 1904

• Main Authors: Clément, Michel, Moore, Colin G.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2007
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Hexanauplia; Harpacticoida; Ectinosomatidae; Ectinosoma; Ectinosoma gothiceps; Arctic
• Online Access: https://doi.org/10.5281/zenodo.10544969; http://treatment.plazi.org/id/876D87C62157731EFF09FDE370B8FEA7

Ectinosoma gothiceps Sars, 1904: 37, pl. XX fig. 2 Type material: 1♀ holotype dissected on two slides (NHM1990.385), 4♀ paratypes dissected on eight slides (NHM1990.386 – 389), 14♀ paratypes in tube (NHM1990.1142 – 1148) from the Forth Estuary (site S17); 2♂ paratypes dissected on two slides (NHM2005.2639 – 2640) from Loch Creran (site S96). Other material examined: Canada: 1♀ (S97); 2♀ (S98), 1♀ (S99) (in authors’ personal collection). Norway: 8♀ and 1♂ (labelled E. gothiceps ) from G. O. Sars collection, tube F20027, Zoology Museum, Oslo. Scotland: S18 (1♀ in authors’ personal collection, 1♀ in tube NHM1990.1149); S21 (61♀ in tube NHM1990.1150 – 1159); S68 (1♀); S70 (9♀ in tube NHM1990.1160 – 1168); S73 (1♀); S95 (3♀ in tube in authors’ collection, 1♀ dissected on two slides NHM1990.389); 2♀ from shallow muddy sand, Forth Estuary (in authors’ personal collection). Description of female holotype Length: Habitus 430 µm; sum of all somites 490 µm; cephalothorax 145 µm; genital double-somite 60 µm. Habitus fusiform (Fig. 7A). Cephalothorax gradually attenuating anteriorly and without a light brown pigment spot near base of antennule but furnished with spinules on anterior distal edge. Rostrum broadly rounded, partially fused at base with cephalothorax and furnished with two small sensilla subapically. Labrum terminating in a spinous projection (Fig. 7B). Genital double-somite subdivided ventrally by a short transverse chitinous stripe (Fig. 9A). Penultimate somite with rounded pseudoperculum (Fig. 9B). Caudal ramus (Fig. 9A, B). Slightly longer than broad. Principal setation and general form as in H. gothiceps . Somitic ornamentation (Fig. 9A, B). Body somites, apart from penultimate, sparsely furnished with sensilla and pores. Posterior margin of cephalothorax, first and second free thoracic somites unadorned. Posterior margin of third free thoracic somite and first urosomite finely spinulose. Genital double-somite with semi-incised subulate hyaline frill and with four rows of fine spinules dorsally, ventrally ...