Tryphana Boeck 1871

• Main Author: Zeidler, Wolfgang
• Format: Other/Unknown Material
• Language: unknown
• Published: 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Lycaeidae; Tryphana; Norway; Hurley; North East Atlantic
• Online Access: https://zenodo.org/record/6069313; https://doi.org/10.5281/zenodo.6069313

Genus Tryphana Boeck, 1871 (Figs 28–30) Tryphana Boeck, 1871: 9.— Gerstaecker 1886: 483.— Bovallius 1887b: 572 –573.— Stebbing 1888: 1538.— Sars 1890: 16.— Schellenberg 1927: 648 (key), 653–654.— Pirlot 1929: 135.— Hurley 1955: 180 (incl. key).— Bowman & Gruner 1973: 46 (key), 48.— Vinogradov et al. 1982: 393.— Shih & Chen 1995: 170 (key), 187.— Vinogradov 1999: 1204. Type species. Tryphana malmi Boeck, 1871 by monotypy. Type material could not be found at the NRS, ZMUC or in any major Norwegian Museum (Vader pers. comm.) and is considered lost. Although the description of Boeck (1871) is limited, he later (Boeck 1872) provides some illustrations which readily characterise this genus. The type locality is the north-east Atlantic, Hardangerfjord, coast of Norway. Diagnosis. Body shape robust or globular. Head round, with slight beak. Eyes occupying most of head surface; grouped in one field on each side of head. Antennae 1 of males with 2-articulate peduncle; flagellum with enlarged, globular callynophore, with aesthetascs arranged in one-field brush medially; with two articles terminally; subterminal article very elongate, inserted on antero-dorsal corner of callynophore; terminal article, small, inserted mid-way anteriorly on sub-terminal article. Antennae 1 of females with 2-articulate peduncle; callynophore, with one smaller article inserted terminally. Antennae 2 of males 5-articulate; strongly zig-zagged, with most articles folded back on each other; positioned obliquely and dorsally into head; basal article distinctly inflated, about half or less the length of following article; articles 2 & 3 sub-equal in length; article 4 more slender and slightly longer than previous one; terminal article very slender, whip-like, slightly longer than any other. Antennae 2 of females 2- articulate. Mandibular palp present in both sexes; 2-articulate in females; 3-articulate in males. Mandibular incisor relatively broad, with several teeth, with relatively large distal lobe medially (? only on left); in male ...