372 DEEP-SEA FISHES OF THE ATLANTIC BASIIT. 



ray is inncli less developed, scarcely extending beyond tLe anterior tfiird of the dorsal fin. 

 Middle of the anal iin strongly depressed; caudal tin subtruncated; pectoral as long as the 

 head without snout, much shorter than the iilamentous ventral tin, which, however, does 

 not reach the vent. {Giintltcr.) 



Ifadial formula: B. 7; D. 5, 52; A, 40; V. 8; Ca^c. pyl. 10. 



Color, brownish, fius blackish, the posterior dorsal and anal rays whitish; cavities of 

 the mouth, gills, and abdomen black. (Gihithcr.) 



This species was obtained by the Challenger, at station 320, ofl'the mouth of the La Plata, 

 and is described and figured by Giinther (Challenger Keport, xxii, 1887, 92, pi. xix, fig. A). 



ANTIMORA, Gunther. 



Antimora, GOntheRj Anu. aud Mag. Nat. Hist., 1878, ii, 18; Challenger Report, xxii, 93. 



Body elongate, covered with small scales. Upper part of the snout produced into a 

 pointed projection. A separate caudal; 2 dorsal fins, the first with 4 or 5 rays; one anal, 

 with a dee]) depression along the middle. Ventrals narrow, composed of 6 rays. Jaws with 

 bands of villiform teeth; vomerine teeth in a small roundish patch; none on the palatine 

 bones. Muciferous channels on the side of the head well developed; bones of the cranium 

 wanting in solidity. Vent at the end ofthe abdominal cavity. Chin with a barbel, Branchi- 

 ostegals 7; pseudobrauchite none. Pyloric appendages long, in moderate number. 



ANTIMOKA VIOLA, (Goode and Bean), Jordan. (Figure 324.) 



Haloporphyrus rioJa, Goode aud Bean, Proc. IJ. S. Nat. Mus., i, sig. 17, Dec. 17,1878, 2,57; Cat. Fish. Essex 

 Co. aud Mass. Bay, 1879, 8; Bull. Mus. C'oiup. Zoiil., x, 1883, 206; Amer. Jour. Sci. aud Arts, xvn, 1879, 

 41. — Jordan and Gilbert, Bull, xvi, U. S. N. M., 800. — Goode, Proc. U. S. Nat. Mus., iii, 476. 



Atitimora riola, Jordan, Cat. Fish. N. Aiuer., 129.— GiJNTHER, Challenger Keport, xxii, 1887, 94, pi. xv. 



An Antimora with body resembling that of Phycis, though somewhat shorter, higher, 

 ami more compressed, its greatest height contained about five times in its length (without 

 caudal), its height at the ventrals slightly exceeding one-eighth of its total length, its height 

 at the middle of the caudal peduncle one twenty-ninth of the same. 



Scales arranged in about 115 vertical rows aud about 38 horizontal ones, about 11 being 

 between the origin of the dorsal and the lateral line and about 27 below the lateral line. 

 Lateral line slightly curved upward in the anterior fourth of its length. 



Length of head contained more than four and one-quarter times in that of the body; 

 its width half its length and less than double that of iuterorbital area. 



The barbel is short, its length being scarcely equal to half the diameter of the orbit and 

 about one-tenth the length of the head. The width of iuterorbital area is about equal to 

 the longitudinal diameter of the orbit, in the larger specimen slightly greater. The diameter 

 of the orbit is equal to or slightly greater than one-fourth the length of the head. The length 

 of the snout is equal to that of the operculum and less than width of iuterorbital area. 



The maxillary extends to vertical from posterior margin of the orbit, its length about 

 equal to the greatest width of the head. Mandible equals one eighth of total length with- 

 out caudal. 



Snout equal to operculum in length, obtusely pointed, much depressed, its lateral out- 

 line subconical, a conspicuous keel extending backward along the lower line of the orbit to 

 its posterior nuirgin. The head and mouth closely resemble those of some species of Macru- 

 ms, except that the keel is covered with small, smooth scales and is not overhanging. Li])S 

 scaleless. 



Teeth in the jaws imperfectly serial, viUiform, recurved; a small oblong patch of similar 

 teeth on the head ofthe vomer; none on the palatines. 



First dorsal fin inserted at a distance from the snout somewhat greater than twice the 

 height ofthe body at the ventrals; its first ray is much prolonged, its length greater than 

 that ofthe head, and nearly as long as or longer (in the larger .specimen) than the distance 

 from the snout to the beginning of the dorsal. The second ray is contained less than four 

 times, the third six tinii^s or less in the first, the fourth about ten times. The length of the 

 base of second dorsal is somewhat more than twice the distance of its insertion fiom the 



