. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 54 DISCOVERY REPORTS Depth of body 5 to 5§ in the length, length of head 4 to 4I. Snout shorter than eye, diameter of which is z\ to z\ in length of head and about twice interorbital width. Maxillary extending to below middle of eye; lower jaw a little shorter than upper; barbel \ to nearly \ diameter of eye; teeth in villiform bands, those of the outer series scarcely larger than the remainder. 15 to 18 gill-rakers on lower part of anterior arch. Dorsal 7-8, 60-66; anal 56-63. Pectoral with 24
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 54 DISCOVERY REPORTS Depth of body 5 to 5§ in the length, length of head 4 to 4I. Snout shorter than eye, diameter of which is z\ to z\ in length of head and about twice interorbital width. Maxillary extending to below middle of eye; lower jaw a little shorter than upper; barbel \ to nearly \ diameter of eye; teeth in villiform bands, those of the outer series scarcely larger than the remainder. 15 to 18 gill-rakers on lower part of anterior arch. Dorsal 7-8, 60-66; anal 56-63. Pectoral with 24 or 25 rays, length about \\ in that of head. Pelvics 5-rayed; longest ray nearly as long as head. Median fins with dark margins. Hah. Patagonian-Falklands region; Straits of Magellan; southern Chile. In addition to the above, there are 4 specimens (130-225 mm.) in the British Museum collection, including the types of the Fig. 24. Physiculus marginatus. x f. A Synopsis of the Species of Physiculus I have been led to examine all the specimens of this genus in the British Museum collection, but, as several species are not represented, it has proved impossible to draw up a satisfactory key for their identification. Provisional key to the species I. Barbel present. A. Second dorsal with 42 to 48 rays; anal with 40 to 53 rays; body stout, the depth 3! to 4^ in the length ... ... ... ... ... ... ... ... backus, barbatus. B. Second dorsal with 49 to 73 rays; anal with 54 to 74 rays; body usually more slender, the depth 4! to 6 in the length. 1. 15 to 20 gill-rakers on lower part of anterior arch. a. Eye z\ to 2§ in head; about 13 scales in an oblique series from first dorsal to lateral line; median fins with dark margins ... ... ... ... ... marginatus. b. Eye 3! in head; about 7 scales in an oblique series from first dorsal to lateral line ... ... ... ... ... ... ... ... ... ... rastrelliger. 2. 7 to 14 gill-rakers (including rudiments) on lower part of anterior arch. a. Ey
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