184 CALIFORNIA ACADEMY OF SCIENCES. 



This species seems to differ decidedly from other 

 genera. We have not heen able to examine any speci- 

 mens, and leave its 'generic identification to some one 

 who can examine specimens. 



Head, behind the eyes, granulated; first dorsal ray 

 spinous and much shorter than the next ray. Fontanel 

 not extending behind the eyes. Occipital process not 

 reaching the dorsal plate; barbels compressed, ribbon- 

 like. 



Profile straight to the base of the occipital crest, some- 

 what steeper behind; transverse section of the head 

 convex; width of head If in its length. Upper jaw pro- 

 jecting for about \ the width of the intermaxillary band 

 of teeth. Occipital process narrow, not reaching to the 

 dorsal plate. Frontal fontanel widest behind, ending 

 abruptly above the posterior margin of the eye. A 

 small occipital fontanel (in specimens .195 m.) Mental 

 barbels long, band-like. Maxillary and postmental bar- 

 bels reaching to end of anal; mentals to near tip of 

 ventral fin. Pectoral and dorsal spines slender, their 

 inner and outer margins with fine teeth. Highest dor- 

 sal ray little less than the head in length. Pectoral 

 spine little less than the head in length, reaching to 

 near the shorter ventrals. Adipose fin 2J in the length. 

 Upper caudal lobe longer. 



Chocolate brown, with numerous round, dark violet 

 spots everywhere except on belly. Head 3; depth 5J ; 

 D. I, 6; A. 12. (Steindachner). 



XXIII. CONORHYNCHOS. 



Conostome Dumeril, " Ichthyol. Anal. 484." 1856. 



Conorkynchos Bleeker, Ichth. Arch. Ind. Siluri, 205 

 and 209, 1858 (conirostris). 



Conorkynchus Bleeker, Nederl. Tijdschr. Dierkunde, i, 

 102, 1863 



