268G Bulletin ^7, United States National Mnsemn. 



Cifharichthys cayennensis, Bleekee, Comptea Eendus Acad. Sci. Arusterd., xiii, 1862, 6, 



Cayenne; name only. 

 Citharichthys guatemalensis, Bleekeh, Nedei\ Tydsclir. Dierk. 1864, 73, Guatemala; 



GuNTHER, Fish. Centr. Amer., 472, 1869. 

 Hemirhonibus fuseii s, Poey, Synopsis, 406, 1868, Havana; Poey, Enumeratio, 138, 1875. 



3059. CITHABICHTHYS GILBERTI, Jenkins & Evermann. 



Head 3i to 3f ; depth of head 4; depth of hody l-.^^ to 2,';. D. 77 to 82; 

 A, 57 to Gl ; scales 18-40 to 46-19. liody comparatively broad, formed as in 

 C. sjnlopttrun, the two profiles about equally arched; snout slij^htly longer 

 than longest diameter of eye, and Avithout a distinct spine. Eyes on lelt 

 side, equal in size, small, 5 to 5| in head; interorbital space narrow, 1| in 

 eye, low, slightly grooved, and scaled on posterior portion only. Maxillary 

 2§ in head, reaching barely to posterior border of eye; upper jaw project- 

 ing. Teeth small, in a single series ; gill rakers 4 -|- 13, short and slender, 

 not longer tlian pupil, with a rather 1)road base, narrowing to a slender 

 stalk. Dorsal lin beginning in front of upper eye, the first 3 rays grow- 

 ing from the blind sid(>, the distance of origin from snout 7 in head; fin 

 rays all simple, 2,^,, in head; pectorals nearly equal, the one on colored 

 side being slightly longer, 1,-q in head; rays on colored side 9; on bliud 

 side 8; ventrals 2vii in head; caudal rounded, caudal peduncle short, 

 its depth 8 in the body, e(|ualing height of anal; scales large, ciliated, 

 pretty uniform, those toward head and margins of disk becoming smaller; 

 lateral line gradually descending along the course of about 16 scales, Irom 

 which point it is straight. Color light brown, with about 15 irregular 

 dark blotches of various sizes, the largest being a pair on the latter third 

 of the disk, 1 on each side of lateral line, as great in diameter as length 

 of ventral fin. Specimens from fresh waters (C. sumicltrasti) are much 

 darker in color; gray, everywhere closely peppered with dark specks; 

 pectoral and caudal mottled. Pacific coast of trojiical America; very 

 abundant in sandy bays from Gnaymas to Panama, ascending all the 

 streams. This species very closely resemldes ('. spilopterus, representing 

 the latter on the Pacific coast, and it has been freiiuently recorded under 

 the name C. spiloplerus. C. gilherti difters mainly in the shorter gill rakers 

 and in the slightly larger scales. Fresh-water specimens (as the type of 

 C. sumichrasli from Ivio Zanatenco, Chiapas, and numerous examples col- 

 lected by \\s in Rio Presidio, near Mazatlan) diff"er considerably in color, 

 being much darker, but there is no other dilference. ("This species is 

 dedicated to Prof. Charles H. Gilbert, whose collection and notes on fishes 

 from Mazatlan, containing undescribed species, this among them, were 

 destroyed liy fire in 1883.") 



Citharichthys gilherti, Jenkins & Evermann, Proc. U. S. Nat. Mas. 1888, 157, Guaymas, 

 Mexico (Type, No. 39627. Coll. Jcnkin.s & Evermann); Jordan, Proc. Cal. Ac. Sci. 

 1895, 503. 



Cilharichthys sumichrasli, .Jordan & Goss. Review Elonnder.s and Sole.<», 276, 1889, Rio 

 Zanatenco, Chiapas. (t!oll. I'rof. Francis E. Suniichrast. Tj'pe, 25299, M. C. Z.) 



Citharichtliys spilopterus, Gunther, Eisb. Centr. Amer., 471, pi. 80, flg. 2, 1869; Jordan 

 & Gu.bert, Proc. U.S. Nat. Mils. 1882, 382; Jordan & Gilbert, Proc. U. S. Nat. Mus. 

 1882, 630; Jordan & Gilbert, Bull. U. S. Fish Comm. 1882, 108-111; not of Gun- 

 ther, 1862. 



