. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. CHAENICHTHYIDAE 79 of head. Rostral spine erect or retrorse. Jaws equal anteriorly or lower jaw projecting; maxillary extending to below anterior part or nniddle of eye. Dorsal V-VII, 38-45 (51); third or fourth spines generally longest; spinous dorsal separated from soft dorsal by an interspace which varies from less than | to about | of the length of the base of the former. Anal (33) 34-38. Pectoral with 22 to 24 rays, | to nearly f length of head, extending to above vent or anterior rays of a
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. CHAENICHTHYIDAE 79 of head. Rostral spine erect or retrorse. Jaws equal anteriorly or lower jaw projecting; maxillary extending to below anterior part or nniddle of eye. Dorsal V-VII, 38-45 (51); third or fourth spines generally longest; spinous dorsal separated from soft dorsal by an interspace which varies from less than | to about | of the length of the base of the former. Anal (33) 34-38. Pectoral with 22 to 24 rays, | to nearly f length of head, extending to above vent or anterior rays of anal; pelvics I 5, | to | length of head, reaching vent, origin of, or anterior rays of anal in young, not reaching vent in adult. Caudal subtruncate or rounded. Pale brownish or greyish; head and body with dark spots and bars; spinous dorsal blackish; other fins pale or more or less Fig. 50. Chionodraco kathleenae. x J. Hub. Mac-Robertson Land; Queen Mary Land; South Victoria Land. The types of the species, 250 to 500 mm. in total length, are from the Ross Sea (74° 25' S, 179° 3' E), 296 metres, and McMurdo Sound, 187 to 375 metres. The Antarctic Research Expedition obtained 16 examples, 275 to 470 mm. in total length, from off Mac-Robertson Land at a depth of 219 metres: these specimens have been included in the description of the species. Two young specimens (70 and 71 mm.) were collected by the same expedition with mid-water nets hauled obliquely from 169 metres to the surface. The eye is proportionately smaller in these young specimens, the diameter being nearly 6 in the length of the head, the pelvic fin-rays are simple, and the pelvic fins themselves are blackish in their distal parts. Chionodraco hamatus (Lonnberg). Chaenichthys rhinoceratus subsp. hamatus, Lonnberg, 1905, Wiss. Ergebn. Schwed. Exped., V (6), p. 47. Chionodraco hamatus, Lonnberg, 1906, K. Svensk. Handl., XL (5), p. 99; Regan, 1913, Trans. R. Soc. Edinburgh, xlix, p
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