Ophthalmolycus bothriocephalus

• Main Author: M. Eric Anderson
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2006
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Perciformes; Zoarcidae; Ophthalmolycus; Ophthalmolycus bothriocephalus; Bransfield Strait; Davis Sea; Ross Sea; South Shetland Islands
• Online Access: https://doi.org/10.5281/zenodo.6258165; http://treatment.plazi.org/id/EE001B960CDA6C61541D8FE1A2CD4E2E

Ophthalmolycus bothriocephalus (Pappenheim, 1912) Lycodes bothriocephalus Pappenheim, 1912: 178, pl. X, fig. 2 (type locality: Davis Sea). Austrolycichthys bothriocephalus: Regan, 1913: 245; Norman, 1938: 80, fig. 10. Ophthalmolycus bothriocephalus: Regan, 1914: 32; Anderson, 1988: 84, figs. 26, 27; Anderson, 1990b: 273, fig. 21. Material examined. South Shetland Islands (Bransfield Strait): MCZ 126362 (17 specimens; 145-250 mm SL) and RUSI 48029 (5; 177-215 mm SL), 61°39'S, 58°04'W, 316 m, POLAR DUKE sta. KEH94-OT04, bottom trawl, 24 Oct. 1994, K. Hartel. MCZ 127323 (4; 220-260 mm SL), 61°42'S, 57°31'W, 380 m, POLAR DUKE sta. KEH94- OT03, K. Hartel. MCZ 127325 (2; 267-277 mm SL), 61°39.3'S, 58°00.2'W, 317 m, POLAR DUKE sta. KEH 94-OT02, K. Hartel. MCZ 127326 (13; 155-243 mm SL), 61°48'S, 58°48'W, 285 m, POLAR DUKE sta. KEH94-OT06. Ross Sea: RUSI 56529 (2; 121-181 mm SL), 74°17.7'S, 171°56.9'E, 465 m, NATHANIEL B. PALMER 97-9, bottom trawl, 30 Dec. 1997, J. Eastman. Diagnosis. Ophthalmolycus bothriocephalus is distinguished from its congeners by the following combination of characters: pelvic fins present; branchiostegal rays 6; pectoral-fin rays 12-15; lateral line single, mediolateral; pseudobranch absent or reduced; vertebrae 20-24 + 73-88 = 95-111. Description. Vetebrae 20-22 + 73-84 = 95-106; D 89-99; A 74-85; P 12-15; C 9-11; pelvics 2-3; branchiostegal rays 6; gill rakers 2-4 + 7-10 = 10-13; vomerine teeth 3-6; palatine teeth 2-8; pseudobranch absent or with 2-4 reduced filaments in large adults; pyloric caeca 2. Following proportions as percent SL: head length 15.0-20.2; head width 6.2-9.3; head depth 6.8-8.6; predorsal length 16.0-18.2; preanal length 31.9-39.2; pectoral base depth 3.6-4.5; pectoral-fin length 9.1-11.7; body depth 6.9-8.9; gill slit length 4.3-6.5. Following proportions as percent HL: head width 41.6-51.3; head depth 45.4-47.9; upper jaw length 32.7-37.8 (juveniles and females), 41.0-47.9 (adult males); snout length 26.1-30.2; eye diameter 16.3-19.4; gill slit length 28.8-35.8; ...