464 CALIFORNIA ACADEMY OF SCIENCES. 



spine. Coracoid plates projecting downward to form an obtiase 

 keel on each side of the belly. Lower lij:) with a short barbel on 

 each side. Facial ossification extending one-third the distance to 

 the maxillary. (Cope.) hicarinatus 452. 



cc. Eye 3J in the head, 1| in the snout and interorbital space. Cora- 

 coid processes wide, with convex inner margins, the surface striate. 

 Inferior lip beaded on margin, which easily separates, forming a 

 loop; no median barbel visible. Preorbital bone and shield single, 

 extending half way from orbit to maxillary. (Cope.) 



semiscuiaius 453. 

 bb. A single rictal barbel; two barbels near the symphysis which pass 



outward and connect with the maxillary barbels for a short distance. 



Coracoid process covering the entire breast and belly. D. I, 10 or 11. 



(Brochis.) 



d. Dorsal I, 10; adipose fin with a membrane; two median barbels on 

 the lower lip. (Cope.) dijUer us 4=54:. 



dd. Dorsal I, 11; adipose fin without a membrane. Short, stout, 

 elevated and compressed; profile convex over the orbits, concave 

 above and below^them; maxillary '(barbels extending to below the 

 middle of the eye. Eye 4 in the head, more than 2 in the snout. 

 Head 3; depth about 21; A. 8; V. 6; P. I, 9. (Cope.) 



cceruleus 455. 



451. Brochis taiosh. 



CaUichthy.<i taiosh Castelnau, Auim. de I'Amer. du Sud. pi. 19, 



fig. 1. 

 Brochis taiosh Eigeum. & Eigenm. Proc. Cal. Acad. 2d Ser. i, 165, 



1888 (name only). 



This species is known only from a drawing; no type 

 is preserved. 



452. Brochis hicarinatus. 



('hc-nothorax bicarinatus Cope, Proc. Am. Philos. Soc. 1878, 679 



(Peril vian Amazon). 

 Brochis bicarinatus Eigenm. & Eigenm. 1. c. (name only). 



This species is known only from Dr. Cope's descrip- 

 tion. 



453. Brochis semiscutatus. 



Cory dor as semisciitatus Cope, Proc. Acad. Nat. Sci. Philad. 1871, 280, 



pi. 6, fig. 1 (Ambyiacu Eiver). 

 Brochis semiscutatus Eigenm. & Eigenm. 1. c. (name only). 



454. Brochis dipterus. 



Brochis dipterus Cojie, 1. c. 1871, 278 (Ambyiacu Eiver). 



455. Brochis coeruleus. 



Brochis creruleus Cope, 1. c. 277, pi. vii, fig. 2, and pi. ix, fig. 3 

 (Ambyiacu Eiver). 



