Jordan a7id Everniann. — Fishes of North America. 2349 



w' . Pectorals small but well developed, 

 mucli longer than eye. 



XiPHISTES. 909. 

 vjiv'. Pectorals minute, not longer than 

 eye. Xiphidion, 910. 



CEBEDICHTHYIN^ : 



mm'. Dorsal flu with its posterior half composed of soft rays; gill mem- 

 branes broadly united, free from isthmus; ventrals wanting; 

 lateral line single, high ; pyloric caeca present ; herbiA-orous. 



Cebedichthys, 911. 



DrCTTOSOMATIN^ : 



IV . Body covered with crosswise tubes at right angles with the lateral line 

 and forming a network with it. 

 a;'. Dorsal fin of spines only; teeth strong; ventral fins present, well 

 developed; gill membranes broadly iinited, free from the 

 isthmus. Plagiogrammus, 912. 



jfcfc'. Pectoral flns long and rounded or pointed, nearly as long as head; dorsal fin 

 high; gill membranes broadly united, free from the isthmus; no lateral 

 line; species probably all herbivorous. 

 Opistiiocentrin^ : 

 y'. Ventral flns wanting. 



z'. Dorsal with its posterior spines rigid and sharp ; head scaly. 



Opisthocentrus, 913. 



zz'. Dorsal with its spines all flexible; head naked. Pholidapus, 914. 



Plectobranchin^ : 



3/2/'. Ventral flns well developed; dorsal spines all pungent; body greatly 



elongate. Plectobranchus, 915. 



;>•'. Gill openings continued forward below, the merabranes separate or nearly so, 



scarcely joined to the isthmus; pectorals and ventrals well developed; dorsal 



spines slender, pungent, the fin without soft rays ; herbivorous species. 



LUMPENINiE : 



a". Lateral line obsolete or obscure; body greatly elongate. 



h" . Pectorals with the upper and middle rays shortened, shorter than lower ; 

 teeth on vomer and palatines. Lepioclinus, 916. 



66". Pectorals with the middle rays longest. 



c". Lateral lino not wholly obsolete, a series of distant pores along 

 sides; teeth on vomer and palatines. Pouoclinus, 917. 



cc". Lateral line obsolete, only a few small pores being traceable; no 

 teeth on vomer; palatine teeth small or wanting. 



LUMPENUS, 918. 

 STICH^IN^ : 



aa". Lateral line present, single, double, or triple; body moderately elongate; 



teeth on jaws, vomer, and palatines. 



d". Lateral line simple, one on each side of back. Stich^ds, 919. 



dd". Lateral lines 2, or dividing into 2 on each side. Ulvarius, 920. 



ddd". Lateral line forking, forming 3 on each side. Edmksogrammus, 921. 



868. ENNEANECTES, Jordan & Evermann. 

 Enneanectes, Jordan & Evermann, Proc. Cal. Ac. Sci. 1895, 501 Icarminalis) . 



Body rather robust, covered with large, rough ctenoid scales; lateral 

 line almost obsolete; mouth moderate, the jaws equal; no tentacle above 

 the eye or on nape; no hook on shoulder girdle; eye large; dorsal lin 

 divided into 3 fins, the first of 3 or 4 slender spines, the second of about 

 10, the soft dorsal of about 7 rays; caudal rounded; anal fin long; pec- 

 toral long, the lower rays simple and thickened. Small fish of the rock 



