20 



ZOOLOGY. 



30. XIPHIDION MUCOSUS, Grd. 



General Report upon Fishes. 



Three lateral and one abdominal mucous ducts. Head subconical ; mouth large ; posterior 

 extremity of maxillary bone extending to a vertical line drawn across the posterior rim of the 

 orbit. Ground color olivaceous, clouded or maculated with blackish brown. Two postocular 

 dark vittfe crossin the cheek. 



List of specimens. 



31. CEBIDICHTHYS VIOLACEUS, Grd. 

 Plate XXV6, figs. 4 and 5. — General Report upon Fishes. 



Upper surface of head narrow, declivous laterally ; a fleshy crest along the cranial ridge. 

 Mouth large ; posterior extremity of maxillary bone extending to a line drawn across the pos- 

 terior rim of the orbit. Origin of anal fin situated opposite the anterior margin of the soft 

 dorsal. Ground color uniform brownish violet ; an occipito-ocular vitta of deep purplish violet ; 

 two other vitta? of the same hue extend — one from the postero-inferior rim of the orbit, the other 

 from the anterior rim — obliquely backwards, across the cheek and opercular apparatus. 



List of specimens. 



32. LUMPENUS ANGUILLAEIS, Grd. 

 Plate XXV6, figs. 1-3. — General Report upon Fishes. 

 Head slender, continuous with the outline of the body ; gape of mouth slightly oblique ; pos- 

 terior extremity of maxillary bone extending to a vertical line drawn midway between the 

 anterior rim of the orbit and the pupil. Origin of dorsal fin situated opposite the base of the 

 pectorals. Pectorals and caudal spear-shaped. Greenish olive, upper regions maculated; caudal 

 fin transversally barred. 



List of specimens. 



Catalogue 

 number. 



507 

 508 



No. of 



specimens. 



Sex and 

 age. 



Adult. 

 ...do. 



Locality. 



San Francisco, Cal- 

 do 



When 

 collected. 



1855 

 1855 



Collected by — 



Dr. Newberry - 

 Dr. Ayres...... 



Original ' Nature of spe- 

 number. I ciniens. 



23 



J^ 



Alcoholic. 

 do... 



k- 



