Discovery reports (1940) Discovery reports discoveryreports18inst Year: 1940 NOTOTHENIIDAE 9 Macronotothen, Gill, 1862, Proc. Acad. Philad. (1861), p. 520. Type Notothenia} rossit, Richardson. ? Pagothenia, Nichols and LaMonte, 1936, Amer. Mus. Novit., 839, p. 2. Type Pagothenia antarctica, Nichols and LaMonte. Body scaly; two lateral lines with tubular or pitted scales. Mouth of moderate size or rather large; teeth usually in bands, but sometimes irregularly bi- or tri-serial with some of the teeth of the outer series enlarged and canine-like. Snout not much longer than the eye. Gill-m
Discovery reports (1940) Discovery reports discoveryreports18inst Year: 1940 NOTOTHENIIDAE 9 Macronotothen, Gill, 1862, Proc. Acad. Philad. (1861), p. 520. Type Notothenia} rossit, Richardson. ? Pagothenia, Nichols and LaMonte, 1936, Amer. Mus. Novit., 839, p. 2. Type Pagothenia antarctica, Nichols and LaMonte. Body scaly; two lateral lines with tubular or pitted scales. Mouth of moderate size or rather large; teeth usually in bands, but sometimes irregularly bi- or tri-serial with some of the teeth of the outer series enlarged and canine-like. Snout not much longer than the eye. Gill-membranes united, free or forming a free fold across the isthmus. Pectoral fin rounded or vertically truncated. Skeleton well ossified; vertebrae 44 to 54 (16-20 + 27-34); most of the praecaudals with parapophyses to which the ribs and epipleurals are attached; hypercoracoid foramen margined below by the hypocoracoid. Coasts of the Antarctic Continent and northwards to Patagonia, Chile, the Falkland Islands, South Georgia, Bouvet Island, Marion Islands, Crozet Islands, Kerguelen, Macquarie Island, southern New Zealand, and Chatham Islands. Fig. 3. Pectoral fin-skeleton of A, Trematomus newnesi; B, Notothenia coriiceps. cl, cleithruin; sc, hyper- coracoid (scapula);/, foramen; cor, hypocoracoid; m, metapterygoid process; i, 2, 3, radials. (After Regan.) Key to the Antarctic Species I. Cheeks and opercles largely scaled, the scaling extending downwards for at least half the depth of the operculum; upper surface of head scaly (except in A'. nudifrons). A. Pectoral with 21 to 25 rays; dorsal IV-VIII, 31-41; anal 30-40. I. Snout and praeorbital scaly (except in young); 12 to 17 gill-rakers on lower part of anterior arch. a. Upper lateral line of 39 to 47 tubular scales; similar scales generally present in lower lateral line; depth 4 to 4I in length. a. Eye 3 to 3.!, interorbital width 9 to 12 in head; dorsal IV-V, 36-37; anal 32; 15 to 18 tubular scales in lower lateral line ... .
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