Cymbasoma norvegicum Suarez-Morales and Mercado-Salas 2023, sp. n.

• Main Authors: Suárez-Morales, Eduardo, Mercado-Salas, Nancy F.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2023
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Copepoda; Monstrilloida; Monstrillidae; Cymbasoma; Cymbasoma norvegicum; Northern coast of Norway; Norwegian Sea
• Online Access: https://doi.org/10.5281/zenodo.8428014; http://treatment.plazi.org/id/463387F19C3DFFC61BB4FB11FE05EA93

Cymbasoma norvegicum Suárez-Morales and Mercado-Salas sp. n. (Figures 1, 2) Material examined Holotype. One adult female (ZMH K-62093), partially dissected, semi-permanent slide mounted in glycerine, sealed with acrylic nail varnish; deposited in the Crustacea Collection of the Museum of Nature Hamburg, Zoology. Specimen damaged, with cephalothorax twisted from sampling. Norwegian Channel; Cruise IceAge 2, Sta. POS456-867 (61° 59.830̍N, 000°30.400̍E), collected 24 July 2013 by Saskia Brix. Type locality Norwegian Channel, northern coast of Norway (61°59.830̍N, 000°30.400̍E); epibenthic sledge trawled in mesopelagic waters (302.5 m). Etymology The species name makes reference to the type locality (Norwegian Sea). Name in genitive case. Gender is neuter to match that of the genus. Diagnosis Female Cymbasoma with slender cylindrical cephalothorax representing about 50% of total body length, forehead weakly produced, coarsely corrugate, antennules with segments 2–3 partially fused and 3–4 fused, first antennulary segment unarmed; anal somite long, more than half as long as genital double-somite, with deep constriction on outer margins. Fifth legs bilobed, exopodal lobe armed with three setae, outermost seta being shorter and thinner than remaining two; endopodal lobe slender, unarmed, almost reaching distal margin of exopodal lobe. Description of adult female Specimen damaged, with cephalothorax and urosome twisted, integument broken on lateral margins, some furcal setae broken off. Body shape and tagmosis as usual in female Cymbasoma (Suárez-Morales and McKinnon 2016). Total body length: 2.03 mm, measured from anterior end of cephalothorax to posterior margin of anal somite (Figure 1). Cephalothorax length = 1.09 mm, representing about 54% of total body length (Figure 1). Oral cone located 0.18 of way back along ventral surface of cephalothorax (Figure 1). Cephalic region anteriorly produced in dorsal view, forehead with pair of minute sensilla and protuberant field of corrugate cuticle between antennule bases, ...