Stellamblyops Petryashov & Frutos, 2017

Wittmann, Karl J., 2024, The Mysidae (Crustacea, Mysida) of the ANDEEP I-III expeditions to the Antarctic deep sea with the description of twelve new species, establishment of four new genera and with world-wide keys to the species of Erythropinae and Mysidellinae, European Journal of Taxonomy 940, pp. 1-180 : 95-96

Genus Stellamblyops Petryashov & Frutos, 2017

Stellamblyops Petryashov & Frutos, 2017: 405 .

Stellamblyops – Mees & Meland 2024: AphiaID 1246750 (accepted).

Type species

Stellamblyops vassilenkoae Petryashov & Frutos, 2017 , by original designation.

Revised diagnosis

Diagnosis by Petryashov & Frutos (2017) based on both sexes, here revised for inclusion of S. doryphorus sp. nov. Eye rudiments separate, without stalks, positioned laterally, not connected by membranous integument, each reduced to roughly triangular pad with tooth-like, non-sensory distal projection extending beyond median segment of antennular trunk; visual elements strongly reduced, no ocular papilla. Antennular trunk 3-segmented; weakly oblique articulation between median and terminal segment. Antennal scale with bare lateral margin and setose mesial margin. Antennal peduncle with three segments lined in a single plane and separated by transverse articulations. Clypeus with long, unpaired anterior process. Labrum normal, without spiniform rostral process. Thoracomeres and pleomeres normal. Thoracic endopod 2 not prehensile. Female pleopods representing setose rods with residual differentiation of pseudobranchial lobe. Male pleopods biramous, with well-developed sympod and multi-segmented exopod. Endopod 1 short, unsegmented; endopods 2–5 long, multi-segmented; all endopods with small pseudobranchial lobe. Uropods undivided, setose. Telson elongate linguiform with lateral constriction, minimum width at about ⅓ of length from terminus. Telson mid-terminally with small rounded indentation or with distinct, proximally rounded cleft, in any case lined with small laminae and flanked by large spines, no setae; terminal spines with size not increasing in continuous series laterally.

Species included

– S. vassilenkoae Petryashov & Frutos, 2017 from the NW Pacific: Kurile-Kamchatka Trench area, Kurile Basin of the Sea of Okhotsk, 41– 46° N, 151– 157° E, depth 3371–5429 m ( Petryashov & Frutos 2017)

– S. doryphorus sp. nov. from the Southern Ocean: Weddell Abyssal Plain, Drake Passage, 59– 67° S, 0– 60° W, depth 2372–4678 m