. 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
. 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 ... ... ... i. squamifrons. j8. Eye 3, interorbital width 9 in head; dorsal VI, 34; anal 30; 4 to 8 tubular scales in lower lateral line ... ... ... ... ... 2. macrophthalma. y. Eye 2| to 3J, interorbital width 14 to 16 in head; dorsal V-VI, 36-38; anal 32-33; usually 9 to 17 tubular scales in lower lateral line ... ... 3. kempi. b. Upper lateral line of 46 to 58 tubular scales; no tubular scales in lower lateral line; depth 4 J to 5 J in length; dorsal I V-VI, 35-41; anal 36-40 ... ... 4. larseni.
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
