712 Bulletiti ^7, United States National Museum. 



behind eye ; maxillary almost entirely concealed by preorbital. Cuba 



and Jamaica, (erpvc, wide; (oip, eye.) 



Tylomms euryops. Bean & Dresel, Proc. U. S. Nat. Mus., 1884, 168, Jamaica. (Typo, No. 



32073. Coll. Public Museum of the Institute of Jamaica.) Jordan, Proc. U. S. Nat. Mus., 



188G, 35. 



1053. TTLOSURUS DIPLOT.ENIA (Cope). 



' Head 2f ; eye 2i in postorbital part of head. D. 16; A. 17. Body sub- 

 terete ; caudal peduncle very much depressed, wider than deep, but 

 without trace of keel ; maxillary nearly concealed by preorbital ; top of 

 head nearly smooth. Caudal moderately emargiuate; snout nearly 

 twice length of rest of head; scales not very small, 23 rows between 

 dorsal and anal. Brownisli above, silvery below, a bluish latertal stripe 

 edged below with black and yellowish. St. Martin Island, West Indies. 

 (Cope) ; not seen by us. {dcnlbog, double ; raivia, ribbon or stripe.) 

 Belone diplotsenia. Cope, Trans. Amer. Phil. Soc. Phila., 1871, 481, St. Martin Island, West 

 Indies. 



1054. TTLOSURUS MICROPS (GUnthor). 



Head 3. D. 13 to 15; A. 14 or 15. Tail strongly depressed, with a 

 sharpish edge, which is posteriorly black. Body depressed, rather 

 broader than deep. Upper surface of head flat, smooth, with a narrow 

 median groove; superciliary region quite smooth; base of premaxillaries 

 depressed ; maxillary half hidden by the preorbital. Teeth of moderate 

 size, widely set; vomerine teeth none. Diameter of eye little more than 

 ■width of interorbital space and A length of postorbital portion of head, 

 which is rather more than half length of beak. Depth of body consider- 

 ably less than length of pectoral fin, which is less than the distance of 

 the opercular margin from the orbit ; ventral fin a little nearer head than 

 caudal ; middle and hinder dorsal and anal rays subequal in length, short, 

 the last terminating at a considerable distance from root of caudal ; origin 

 of anal somewhat in advance of that of dorsal ; caudal forked, with 

 the lobes subequal in. length. Scales nunute, adherent. The termination 

 of the lateral keel on the caudal fin black. Coast of Guiana. (Giinther.) 

 (fitKpoi, small; cji/j, eye.) 



Belmie mia-ops, Guntheh, Cat., vi, 237, 186C, Surinam, British Guiana. (Coll. SirR. Schom- 

 burgk.) 



1055. TTLOSURUS ANGUSTICEPS (Giinther.) 



Head 2*. D. 16; A. 19. Tail strongly depressed, with a sharpish lateral 

 edge; body subcylindrical. Head narrow, elongate, rather convex above, 

 with a deep, median longitudinal groove. Base of the intermaxillaries 

 depressed ; teeth very small ; maxillary half hidden by the preorbital. 

 Eye i length of postorbital part of head, which is more than that of pec- 

 toral. Ventral somewhat nearer to head than caudal; middle and hinder 

 dorsal and anal rays subequal in length, short, the last terminating at a 

 considerable distance from root of caudal ; caudal fin somewhat emar- 

 giuate. Scales very small. Termination of the caudal keel blackish. 

 Coast of Ecuador. (Giinther.) (fl»(/Hs<«s, narrow ; -ccps, head.) 

 Belone angusticept, Guntheb, Cat., vi, 2:i8, 18G6, Ecuador. (Coll. Fraser.) 



