. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. FISHES FROM BERING SEA AND KAMCHATKA. 81 Color in life: Rose-red, lighter on belly and under side of head; skin everywhere dusted with fine dark points; gill cavity, abdomen, and pectorals dusky; posterior part of the body, dorsal, anal, and the caudal black. This species differs from C. cypselunis in the length of body, size of eye, ventral disk, and gill opening, and in the much shallower caudal fork. A second specimen, the cotype, was taken at station 4781. ELASSODISCUS, new genus (Cy
. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. FISHES FROM BERING SEA AND KAMCHATKA. 81 Color in life: Rose-red, lighter on belly and under side of head; skin everywhere dusted with fine dark points; gill cavity, abdomen, and pectorals dusky; posterior part of the body, dorsal, anal, and the caudal black. This species differs from C. cypselunis in the length of body, size of eye, ventral disk, and gill opening, and in the much shallower caudal fork. A second specimen, the cotype, was taken at station 4781. ELASSODISCUS, new genus (Cyclogasteridae). Closely allied to Careproctus but differing in the greatly reduced and imperfect condition of the ventral disk, in which character it represents a further step toward the total loss of the ventral fins. Teeth tricuspid, in oblique series. Pseudobranchiae absent. Branchiostegals 6. Pectoral fm notched. Nostril single. Ventral disk rudimentary, the rays absent, the disk represented by a very small semicircular fold of skin hidden within a pit, one end of the fold protruding papilla-like from the pit; the fold is free from the pelvic girdle but connected with it by strands of connective tissue; pelvic girdle wholly concealed, consisting of two vertical cartilaginous plates. Gills 3,' 2, no slit behind fourth arch, the other slits contracted, with only a portion of the horizontal limb free. r>>'loric caeca short, in a single series, 12 in number. Vertebra 75. Type Elassodiscus tremebundus, new Fig. 36.—Elassodiscus tremebundus, new species. Type. Elassodiscus tremebundus, new species. (Fig. 26.) Type 215 mm. long, from station 4797, off Avatcha Bay, Kamchatka; depth 682 fathoms. Head 23 hundredtlis of length without caudal; depth 26; eye ; interocular space 11; width of head ; depth of head at occiput 21; snout 7; gill opening 7; distance from ventral pit to tip of mandible 10; to vent 4; to front of anal 18. Dorsal 63 to 65; anal 58 to 60;
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1910, bookyear1910
