756 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. ' 



401.— OPIIIOBLEW]\IUS Gill. 

 (Blennophis Valenciennes; preoccupied.) 

 (Gill, Proc. Acad.'Nat. Sci. Phila. 1860, 103: type BlennopMs icebbii Val.) 



Body moderately elongate, strongly compressed, scalelessj snout 

 short, high, abruptlj^ decurved anteriorly; symphysis of lower jaw 

 with 4 hooked canines, the outer strongest and bent backward, almost 

 forming a right angle; sides of lower jaw with 2 or 3 still larger canines, 

 the hindmost very large and bent backward; upper jaw with 4 slender 

 canines in front, followed by a long row of shorter, slender, movable 

 teeth, which are set close together; nasal tentacle digitate; a low simple 

 tentacle above eye; gill-openings wide. Dorsal fin long, the spines 

 slender, separated by a slight notch from the soft rays; caudal lunate, 

 free from dorsal and anal ; ventrals jnoderate, I, 2 ; pectorals large, 

 (o^j?, snake; Blennius.) 



1152. O. webbi (Val.) J. & G. 



Dark golden-brown, sometimes with a broad cross-band of dusky 

 violet on back and dorsal fin; caudal with 2 dark longitudinal stripes; 

 dorsal and anal purplish or orange; an intense, round, dark, ocellated 

 spot behind eye. Head much compressed; eye 3^ in head; snout 4^. 







Dorsal beginning above gill-opening, ending just before caudal; its soft 

 rays somewhat higher than the spines, the highest spine If in head; 

 caudal and pectorals each about as long as head; ventrals li in head. 

 Head 4; depth 4i. D. XI-22; A. II, 23; V. I, 2; P. 15. "Western 

 coast of Southern California" to Mazatlan, Barbadoes, and Canary 

 Islands. (Steindaclmer.) 



(BlennopMs wehMiYsdenciennen; "Webb & Berthelot, lies Canar. Poiss. GO: Blenno- 

 pMs wehbi Giintber, iii, 259; Steiudacbner, Icbth. Beitnige, viii, 41, 1879.) 



402.— CHASinODES Cuvier & Valenciennes. 



(Cuv. & Val. Hist. Nat. Poiss. xi, 295, 1836: type Blennius hosquianus Lac.) 



Body oblong, compressed, naked; head triangular in profile, the 

 snout somewhat pointed; mouth large, with lateral cleft, the maxillary 

 usually extending to beyond eye; jiremaxillaries not protractile; teeth 

 in a single series, long and slender, comb-like, confined to -the front of 

 each jaw; no canines; cirri very small or wanting; gill-openings very 

 small, their lower edge above the middle of the base of the pectorals; 

 lateral line incomplete. Fins as in Blennius. American. [)(a(Tp.tuds(;, 

 yawning.) (See Addenda.) 



1153. C. bosquianiis (Lac.) Cuv. & Val. 



Color (in 3 ) olive green, with about nine horizontal narrow blue lines, 



