Lycenchelys antarctica
Lycenchelys antarctica Regan, 1913
First described in: Regan, C. T. (1913). The Antarctic fishes of the Scottish National Antarctic Expedition. <em>Transactions of the Royal Society of Edinburgh.</em> v. 49 (pt 2, no. 2): 229-292, Pls. 1-11.
Descriptions from checklists and floras indexed by GBIF
description
Description. Vertebrae 26 - 27 + 91 - 97 = 117 - 124; D 102 - 108; A 95 - 100; P 15 - 16; C 8 - 10; pelvics 2; branchiostegal rays 6; gill rakers 2 + 12; vomerine teeth 4; palatine teeth 4 - 6; pseudobranch and pyloric caeca absent. Following proportions as percent SL: head length 15.3 - 15.9; head width 5.6 - 7.9; head depth 6.2 - 7.2; predorsal length 28.7 - 29; preanal length 35.4 - 36.7; pectoral base depth 4.3 - 4.4; pectoral-fin length 7.9 - 9.7; body height 5.3 - 7.4; gill slit length 5.0 - 5.6. Following proportions as percent HL: head width 35.4 - 51.6; head depth 38.9 - 47.0; upper jaw length 38.5 - 41.6; snout length 32.4 - 32.6; eye diameter 15.8 - 17.8; gill slit length 31.6 - 36.8; pectoral-fin length 51.6 - 60.8; interorbital width 7.6 - 8.9; interpupillary width 17.4 - 22.4; caudal-fin length 5.4 - 6.9; pelvic-fin length 11.9 - 15.3. Pectoral base / length ratio: 44.6 - 54.5. Cephalic lateralis pore variation minimal; USNM 356654 with eight preoperculomandibular pores (pores 5 and 6 joined), the others with nine pores; suborbital pores 7 + 0 in SAM 34530, 8 + 0 in others; postorbital pore 1 only in all specimens; occipital and interorbital pores absent; two supraorb
Studies on the Zoarcidae of the southern hemisphere. X. New records from western Antarctica.
diagnosis
Diagnosis. Lycenchelys antarctica is distinguished from its congeners by the following combination of characters: single, ventrolateral lateral line; preoperculomandibular pores usually nine; vertebrae 117 - 138; predorsal length 27 - 33 % SL; free dorsal-fin pterygiophores 6 - 16.
Studies on the Zoarcidae of the southern hemisphere. X. New records from western Antarctica.
discussion
Remarks. Anderson (1988) redescribed this species from 14 specimens 139 - 257 mm SL, including the holotype of Lycenchelys atacamensis Andriashev. The present material agrees well with other specimens, but meristics are extended as USNM 356654 had the fewest vertebrae (26 + 91) encountered so far, and consequently the fewest dorsal and anal rays. Morphometric data are extended slightly for a few characters. The largest specimen here, SAM 34530, is the second known gravid female. It contained 17 ova 4.6 - 5.9 mm in diameter. MNHN 1990 - 645 extends the range of this species into the Weddell Sea.
Studies on the Zoarcidae of the southern hemisphere. X. New records from western Antarctica.
materials_examined
Material examined. Scotia Sea: USNM 356654 (1 specimen; 181 mm SL), W of South Orkney Islands, 60 ° 45.5 ' S, 48 ° 13.5 ' W, 2511 - 2542 m, ISLAS ORCADAS coll. UMO 116, 10 ft beam trawl, 18 Feb. 1976, H. H. DeWitt. SAM 34530 (1; 242 mm SL), N of Elephant Island, 60 ° 37.2 ' S, 54 ° 55.9 ' W, 3213 - 3219 m, POLARSTERN sta. AGT- 39, Agassiz dredge, 26 Nov. 1996, K. - H. Kock. SAM 34600 (1; 211 mm SL), N of Elephant Island, 59 ° 09.5 ' S, 58 ° 32.3 ' W, 3721 - 3723 m, POLARSTERN sta. AGT- 2, Agassiz dredge, 15 Nov. 1996, K. - H. Kock. Weddell Sea: MNHN 1990 - 645 (2; 135 - 154 mm SL), off Kapp Norvegia, 71 ° 09.0 ' S, 13 ° 48.0 ' W, 2025 - 2037 m, POLARSTERN sta. 295, Agassiz beam trawl, 21 Feb. 1989, W. Arntz.
Studies on the Zoarcidae of the southern hemisphere. X. New records from western Antarctica.
In the stacks
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Every page naming Lycenchelys antarctica in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 2380593.