1885.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 59 



Head, 41 in leugtli to last caudal vertebra ; depth, 5-^. D., 11 ; A. 

 12 ; scales of lateral line, 58. Length of specimen, 0^ inches. 



Body rather robust, not much compressed ; head broad ; iuterorbital 

 area flat, its width 3 in head ; eye rather small, its diameter 3i in head ; 

 snout rather blunt, its length equal to diameter of eye; mouth large; 

 length of maxillary 44 in head. 



Pectoral tin broad and long, its length l-i\ in length of body; tips of 

 pectorals scarcely reaching the last rays of dorsal fin ; first ray of pec- 

 toral simple. If in length of tin, second ray divided, third and fourth 

 rays longest. 



Origin of ventrals midway between posterior edge of preopercle and 

 last caudal vertebra, their tips scarcely reaching last ray of anal; 

 length of ventrals 3^ in length of body. First rays of dorsal and anal 

 opposite each other (or nearly so) ; base of anal 1^ in base of dorsal ; 

 base of dorsal 1^ in head ; lower lobe of caudal long, about one fourth 

 longer than head, width of body at base of pectorals If in length of 

 head. Least depth of caudal peduncle about 3§ in length of head. 



Posterior margin of preopercle nearly vertical, forming almost a right 

 angle at its lower ijosterior extremity. Gill-rakers long, numerous, and 

 slender. 



About twenty-seven scales on lateral line before ventrals; about 

 thirty scales between occiput and dorsal fin ; six rows of scales between 

 dorsal fin and lateral line. 



Color uniform brownish above, silvery below. Pectorals colored like 

 upper part of body, shading into darker toward their extremities; cau- 

 dal uniform brownish, no dark markings on dorsal and anal fins; 

 ventrals without distinct black markings. 



9. Exocoetus hetenirus. * 



Exoccetea exiliens, Blocb, Ichthyol., taf. 392 (not of L.l; Bloch & Schneider, 

 Syet. Ichth., 1801, 429 (in part, copied). 



ExoccbIus heterurus, Rafinesque, Caratteri di Alcuni Nuovi Generi, etc., 1810, 

 58 (Palermo). 



? Exocoetus comatus, Mitcbill, Trans. Lit. and Phil. Soc. N. Y., 1815, 448, pi. 

 5, f. 1 (New York) ; De Kay, New York Fauna, Fishes, 1842, 231, pi. 3(3, f. 

 15 (after Mitchill) ; Storer, Synopsis Fish. N. A., 1846, 188; Lutkeu, Vi- 

 densk. Meddel. Natur. Foren., 1876, 106, f. 1 (36° W., 11° N.) (apparently 

 a young form, with long mental barbel). 



'? Cypselurua comatus, Gill, Cat. Fish E. Coast, 1861, 38 (name only); Jorda,n 

 & Gilbert, Syn. Fish. N. A., 1883, 381 (after Liitken). 



Exoccetus noveboracensis, Mitchill, Amer. Monthly Mag., ii, 1814, 233 (New 

 York) ; De Kay, New York Fauna, Fishes, 1842, 230, pi. 36, f. 114 (after 

 Mitchill); Storer, Syn. Fish. N. A., 1846, 188 (copied) ; Jordan & Gilbert, 

 Syn. Fish, N. A., 1882, 904 (Wood's Holl, Mass. ; Pensacola, Fla.). 



^Exoccetus appendiQiiJatus, Wood, Journ. Ac. Nat. Sci. Phila., 1824, 283, pi. 17, 

 f. 2 (young ; S. coast United States). 



Exoccetus voUtans, Cuv. &. Val., xix, 1846, 83, pi. 559 (Toulon; Corsica; Nice; 

 Genoa ; Algiers) ; Giinther, vi, 1866, 293 (copied) ; Steindachner, Ich- 

 thyol. Bericht., 1868, 68 (Alicante); Lutk<-u, Vidensk. Medd. Nat. For., 

 1876, 10, 108 (St. Bartholomew.; Gulf of Mexico; Naples; Nice); Doder- 



