ZOOLOGY. 



11 



List of specimens. 



6. COTTOPSIS PARVUS, Grd. 



General Report upon Fishes. 



Origin of first dorsal situated posteriorly to the insertion of the upper ray of the pectorals. 

 First ray of anal placed under the fourth of the second dorsal. Extremities of pectorals extend- 

 ing to the anterior margin of the anal. Skin generally prickly ; lateral line slightly deflected 

 upon the peduncle of the tail. Olivaceous, maculated with blackish. 



Here is another kind of " fresh water bull head," or " miller's thumb." 



List of specimens. 



7. OLIGOCOTTUS MACULOSUS, Grd. 



General Report upon Fishes. 



Head subcorneal. Mouth moderately cleft ; posterior extremity of maxillary extending to a 

 vertical line intersecting the pupil. A stoutish bicuspid process upon the convexity of the 

 preopercle. Two acute nasal spines. Dorsal fins contiguous. Origin of anal situated in ad- 

 vance of the anterior margin of second dorsal. Yellowish brown above, mottled or variegated 

 with blackish ; a series of blotches of a deeper hue along the dorsal region. Lower half of the 

 sides vermiculated. Abdomen of a bright saffron hue in the male. Inferior surface of head 

 with traces of black markings. Throat and abdomen unicolor, as also the ventrals and anal. 

 Dorsals, caudal, and pectorals transversally barred with black. 



A fish not known among fishermen ; hence we are not aware of its having received a common 

 name. 



List of specimens. 



