ZOOLOGY. 11 
List of specimens. 
Catalogue 
number. 
No. of 
specimens 
Sex and 
age. 
Locality. 
When 
collected 
Collected by— 
Original 
number. 
Nature of speci¬ 
mens 
292 
2 
Adult. 
Upper Pit river, Cal. 
1855 
Dr. Newberry_ 
Alcoholic. 
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 u fresh water bull head,” or “ miller’s thumb.” 
List of specimens. 
Catalogue 
number. 
No. of 
specimens. 
Sex and 
age. 
Locality. 
When 
collected. 
Collected by— 
Original 
number. 
Nature of speci¬ 
mens. 
293 
2 
Adult. 
Monterey, Cal._ 
1855 
Lieut. Trowbridge_ 
Alcoholic. 
294 
4 
c? 9 
Fresidio, Cal._ 
1853 
_do_ 
7. OLIGOCOTTUS MACULOSUS, Grd. 
General Report upon Fishes. 
Head subconical. 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. 
Catalogue 
No of 
Sex and 
Locality. 
When 
Collected by— 
Original 
Nature of sped- 
number. 
specimens 
age. 
collected. 
number. 
mens. 
298 
6 
Adult. 
1855 
1 ii«»i 1 1, Trowbridge_ 
Alcoholic. 
