542 Bulletin 47 ', United States National Museum. 



819. CHLOROPHTHALMUS CHALYBEIUS* (Goode). 



Depth 6J; width 7|. D. 11; A. 8; C. 16; P. 17 or 18; V. 9 or 10; 

 scales about 6|-48-6. Body terete. Least height of the tail half that of 

 body. The scales are moderately strong, sharply pectinated at the edge, 

 and arranged in regular transverse rows, overlapping in such a manner as 

 to resemble oblique plates upon the sides. Length of head to end of 

 flexible flap of the operculum slightly more than of the body, and itself 

 slightly more than 4 times length of snout. Orbit 4 times width of the 

 interorbital space, 3 in length of head. Maxillary broad and flattened 

 posteriorly, in length ^ of the body; it extends back to anterior margin 

 of pupil. Mandible protruding beyond the snout. When the mouth is 

 closed the tip of mandible projects noticeably. Dorsal almost midway 

 between snout and adipose dorsal, its height almost equal to that of ven- 

 tral ; adipose dorsal over middle of anal, its length half diameter of orbit ; 

 distance of anal from snout about f of the body length, its length of base 

 equal to length of snout ; its height to that of middle caudal rays; cau- 

 dal furcate ; pectoral long, subfalcate, inserted close to the branchial 

 cleft, its tip extending to fourteenth scale of lateral line, its length twice 

 that of mandible ; ventral located f of distance from snout to base of 

 caudal, directly under middle of dorsal. Color grayish, mottled with 

 brown ; scales metallic silvery. Gulf Stream, in from 85 to 167 fathoms. 

 (chalyleius, iron-colored.) 



Hyphalonedrus chalybeius, GOODE, Proc. U. S. Nat. Mns., in, 1880, (Feb. 16, 1881), 484, Gulf Stream 

 off Rhode Island; (Type, No. 26092. Coll. Fish Hawk); JORDAN & GILBERT, Synopsis, 296, 

 1883. 



Chorophthalmus agassisii, GUNTHER, Challenger Report, xxn, 132, pi. L, fig. c, 1887; not of BONA- 

 PARTE. 



Chlorophthalmm chalybeius, GOODE & BEAN, Oceanic Ichthyology, 60, fig. 71, 1895. 



820. CHLOROPHTHALMUS TRTJCULENTUS, Goode & Bean. 



D. I, 8; A. I, 7; V. 9 or 10. Body eubterete, somewhat compressed, its 

 height 5i in its length, its width about 8. The least height of the tail 

 about 2i in greatest height of body at the insertion of dorsal. Scales 

 moderate, cycloid, arranged in regular transverse rows, overlapping in 

 such manner as to resemble oblique plates on the sides. Lateral line 

 rather inconspicuous, containing between 40 and 50 scales; about 6 scales 

 between lateral line and origin of dorsal, and 6 or 7 between it and ven- 

 tral. Greatest length of head from tip of projecting lower jaw a little 

 more than that of body, or 2 times in length of snout ; lower jaw 

 projecting beyond tip of snout a distance equal to i length of snout. 

 Orbit nearly equal to snout, and about i length of head; width of inter- 

 orbital space 2 in orbit. The maxillary broad and flattened posteriorly, 

 about 8 times in length of body, not reaching perpendicular from anterior 

 margin of the orbit. Insertion -of the dorsal midway between tip of 



* Cfilorophthalmus chalybeius is not identical with C.agassizii, but is well separated by the smaller 

 eye, longer, more conical snout, lower, more terete body, and larger scales. It closely resem- 

 bles it, however, in general form. Dr. Giinther's diagnosis of C. agassizii in the Challenger 

 volume more nearly applies to C. chalybeius, and his figure is apparently of C. chalybeius. Speci- 

 mens were obtained by the Fish Hau*k in five localities ranging in depth from 101 to 156 fathoms, 

 and by the Albatross from eleven stations at depths of from 85 to 167 fathoms. Goode & Bean. 



