202 CTPKJNIDJi:. 



obtuse, depressed, sharpish trausversely. Head very broad, the 

 width of the intororbital space (which is convex) being equal to the 

 length of the postorbital portion of the head, and considerably more 

 than one-half of the length of the entire head. Eye rather small. 

 Suborbital ring very narrow, the praeorbital being larger than the 

 hindmost suborbital. Scales with numerous radiating striae, the in- 

 terspaces between the striae being transversely rugose. There are 

 four longitudinal series of scales between the lateral line and the 

 root of the ventrals. Opercles strong, and with numerous irregular 

 grooves (for blood-vessels, as in the Carp). Origin of the dorsal fin 

 somewhat in advance of that of the ventrals. Caudal fin deeply 

 forked. Coloration uniform. 

 China. 



a. Fine specimen, 19 inches long. From the Haslar Collection. 



b. Adult : stuffed. Presented by J. Eeeves, Esq. 



c. Half- grown. 



d. Skull of a large specimen. Voyage of H.M.S. ' Actseon.' 



58. MYLOPHARODON. 



Mylopharodon, Ayres, Proc. Calif. Acad. Nat. Sc. i. 1855, p. 35. 



Scales small, lateral line present, running along the middle of the 

 side of the tail. Dorsal fin short, without spinous ray, commencing 

 opposite to the ventrals. Anal fin short. Mouth anterior, rather wide. 

 Intermaxill(iries not protractile, the fold of the sJcin between maonl- 

 laries and intermaxillaries being discontinued on the upperside of the 

 snout. No barbel. Lower jaw with rounded margin and with the 

 labial folds well developed laterally. Gill-rakers short, terminating 

 iu several minute points ; the anterior quite rudimentary. Pseudo- 

 brancbiaj. Pharyngeal teeth (5) 4 . 2 — 2 . 4, those of the outer series 

 very stout, molar-like, with flat, oblique crown. 



California. 



1. Mylopharodon conocephalus. 



Gila conocepliala, Girard, Proc. Ac. Nat. Sc. Philad. 1854, p. 134, 

 Mylopharodon robustus, Ayres, I. c. p. 33 ; Girard, U. S. 8f Pac. R. R. 



Rcped. Fish. p. 216, pi. 47. 

 conocephalus, Girard, I. c. pi. 46. figs. 5-8. 



D. 10. A. 10. V. 10. L. lat. 74. L. transv. 17/15. 

 The height of the body is contained four times and two-thirds in 

 the total length (without caudal), the length of the head four times 

 and one-fourth. Snout produced, conical ; eye small, its diajneter 

 being two-fifths of the length of the snout or of the width of the 

 intcrorbital space (which is fiattish), and two-sevenths of the length 

 of the postorbital portion of the head. Prajorbital elongate, post- 

 orbital nearly as largo as tlic eye, and somewhat broader than the 

 preceding suborbital. ISIouth horizontal, with the jaws subequal in 

 length, the maxiUary extending nearly to below the front margin of 

 the orbit. Origin of the dorsal fin a little behind that of the ventrals, 



