102 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



No. 33291, U. S. N. M., the type of Gill's genus Sigmops and species Sigmops stigmati- 

 CM8, is an imperfect individual, from which the luminous spots had been rubbed off before 

 it was examined by him; at the time when he studied the species this specimen was the 

 only one which had been obtained, and the material was lacking for a complete comparison. 



A single individual was taken by the Blake from Station xxxvin: and specimens from 

 the following localities have been obtained by the Albatross: No. 33368, TJ. S. N. M., from 

 station 2(t77, in 41° 09' 40" N. lat., 66° 02' 20" W. Ion., at a depth of 1,255 fathoms; No. 

 35446, TJ. S. N. M., from station 2193, in 39° 44' 30" N. lat., 70° 10' 30" W. Ion., at a depth of 

 1,122 fathoms; No. 33291, U. S. N. M., from station 2039, in 38° 19' 28" N. lat., 08° 20' 20" W. 

 Ion., at a depth of 2,369 fathoms; No. 35465, U. S. N. M., from station 2196, in 39°35'N. lat,, 

 69° 44' W. Ion., at a depth of 1,230 fathoms; No. 38174, U. S. N. M., from station 2725, in 36° 

 34' N. lat., 73° 48' W. Ion., at a depth of 1,374 fathoms; No. 35600, from station 2219, in 39° 

 46' 22" N. lat., 69° 29' W. Ion., at a depth of 948 fathoms; and specimens from station 2718, 

 in 38° 24' N. lat., 71° 52' W. Ion., at a depth of 1,569 fathoms : from station 2535, in 40°, 03'30" 

 N. lat., 67° 27' 15" W. Ion., at a depth of 1,149 fathom's; and from station 2149, in 13° 01' 30" 

 N. lat., 81° 25' W. Ion., at a depth of 992 fathoms. No. 29009, U. S. N. M., was obtained by 

 the Fish Hawk from station 1048, in 38° 29' N. lat., 73° 21' W. Ion., at a depth of 435 fathoms. 



BONAPARTIA, Goode and Bean, n. g. 



Body oblong, compressed, slender behind, as in Gonostoma; covered with large cycloid 

 scales, nearly equal in size. A continuous row of photophores on either side of the ventral 

 line upon the lowest row of scales, extending from the anterior part of the lower jaw to the 

 extremity of the base of the anal; others upon the caudal peduncle. Head much com- 

 pressed, cleft of mouth very wide. Intermaxillary short; maxillary long, curved, forming 

 tlic entire margin of the upper jaw, extending to the angle of the preoperculum. Jaws 

 armed with a single series of not very numerous, acicular teeth, uniform in size; minute 

 teeth on the palatines and pterygoids. Eye moderate. Pectoral and ventral fins small. 

 1 tarsal tin on the hinder half of the body, opposite the anterior portion of the anal. Adipose 

 tin absent. Anal much longer and higher than dorsal. Caudal (probably) subtruncate. 

 Gill-opening exceedingly wide, the branchial aperture extending nearly to the dorsal line 

 on either side, and extending forward also to the symphysis of the lower jaw. Gill-rakers 

 very long. 



This species is named in honor of the Prince of Canino, whose admirable work upon the 

 fishes of Italy, one of the most essential of the older works in the ichthyologist's library, is 

 especially full in its discussion of the fishes allied to the one now under discussion. 



BONAPARTIA PEDALIOTA, GOODE and Bean, n. s. (Figure 120.) 



Body elongate, compressed, its height contained 4J times in its total length (without 

 caudal); length of the head .'i.V times. The diameter of the eye is about equal to the length 

 of the snout, and about one -fifth of the length of the head; width of interorbital space less 

 than diameter of the eye. Mouth large, oblique, the lower jaw slightly projecting; the 

 upper jaw reaches back to the angle of the preoperculum, and is convex on its lower edge 

 between the-verticals from the anterior and posterior margins of the eye. The pre- 

 operculum extends backward in a sharp angle. The origin of the dorsal fin is equidis* 

 tant from the root of the ventral and the axil of the posterior anal ray. and in the vertical 

 from the base of the fourth or fifth anal ray: its length of base about two-fifths of that of 

 the anal, and a little more than half the length of the head. Its greatest height, which is 

 anteriorly, about equal to the length of its base. The space between this and the root of 

 the caudal is equal to the length of the upper jaw. The origin of the anal is equidistant 

 from the posterior margin of the orbit and the base of the middle caudal rays. Its ante- 

 rior third is greatly prolonged, falcate in form, giving to the lower outline of the fin a para- 

 boloid curve. The length of the longest or third ray is about equal to the length of the 

 base of the fin, and nearly four times the length of the twelfth ray. Posteriorly to the end 

 of the dorsal the fin is low, decreasing from a length equal to the diameter of the orbit, to 



