FISHES OF SAORAMENTO-SAN JOAQUIN BASIN. 145 
behind middle of body; caudal convex, 1.33 to 1.43 in head; ventrals 1.6 in head, the rays graduated, 
the outer 0.66 length of inner; distance from snout to vent 0.54 to 0.56 of body. Fine prickles behind 
pectoral in all specimens, extending all over sides in two, and about half over in two others; lateral 
line ending under second to fifth ray from end of soft dorsal; finely mottled with dusky and gray, the 
dusky collecting into four or five blotches in some specimens; ventrals colorless, other fins barred. 
Description based on five specimens 1.5 to 2.5 inches long from Fall River at Dana, Cal., collected 
by Rutter and Chamberlain. Another specimen 2.1 inches long was taken in Fall River at Fall River 
Mills. The latter specimen has stronger opercular spines, and the vent is but 0.52 of the body length 
from tip of snout. Type no. 58500, U. S. National Museum. 
The following is a statement of the differences between this species and Cottus tenuis, as determined 
from the original description and drawing of the latter: 
C. asperrima. | C. tenuis. 
z 2s 2 | 
RNC Hive Lon OO Ai HeC MNClG tn GO BYE toe rian Oe lute poh ae tower nea. ccna pkwinwcn twee cs eceee 2.5 
Te betore Gri ehteg) (V1) = 1 1 Cae een he ae ee een es See eee ees 3.8 
Depth into length... ... 1 OCS INR BODE e CREE CACO ANE OSES aO EES 7 
Wispance OL VEnttLOUN SNOUCs= <2 05 0 oen oe Coes caesas boncacneensccees -onacdsseos wei 51 
Distance of soft dorsal from snout... ...-....--.----------- 22+ e eee eee ee eee =I . 5 .49 
ITA em IsOL GOlu CLONER Nea ee ws noe oo Sot te dota w ence seco mlon ee ..-| Segmented. Unsegmented. 
DEPT Ss reas an eee ee a aks scene ewdenercsetecus soe 44 14 aii 
SAUNORUTE VAY CHYANCDEM) eae sete ok So cae. So ee cone mebcgeuccacceGeSesiesee- oe 7 9 
LOCAL Laie he {1 ele ee amen (or ata nn le ec fe ea ee aea| Convex. Concaye. 
Outer ventral ray. .| _.66 of inner. -9 of inner. 
TAN NEXCUIAI RPINGss5 oot isn -ac oe boa ose ee aoe es eens ae ne ate a ...| Less hooked. 
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24. Cottus asper Richardson. Sculpin. 
Cottus asper Richardson, Fauna Bor. Amer., 295, 1836, Columbia River, Fort Vancouver. 
Cottopsis parvus Girard, Proce. Ac. Nat. Sci. Phila., 1854, p. 144, Presidio. 
Uranidea semirscaber centropleura Eigenmann & EKigenmann, West American Naturalist, 1889, p. 149, Allen Springs, Lake 
County. 
Cottus gulosus (in part) Jordan & Evermann, Fishes N. & Mid. Amer., pt. m1, p. 1945, 1898. 
Body entirely asperate in all specimens of our collection. The following table indicates the varia- 
tion in fin rays: 
Number of specimens having— 
Locality. Dorsal— Anal— 
IX. | 
| 
Sacramento River, Redding.............-....--.- |. =e 
Mouth of Battle Creek. ............ : : 
Sacramento River, Red Bluff 
Sacramento River, Jacinto--...... 
Feather River, Marysville... : 4 
RxTGate Cresk vACCANG sao eee se ee ena eens ceeee we 
Locau DistrrBurtion. 
Locality. Stream. Collector. | Name as reported. Authority. 
ESHOP en ace oe | Sacramento River.........- Rutter & Chamber- | Cottus asper.-.-...... 
ain. 
Fort Reading....-....|...-- CG (en Ss oS eae Se oem Hammond........-... Cottopsis parvus-...- Girard, 1858. 
Red Bluff... Rutter & Scofield. .... Cottus asper 
SUT ee ee eG CE as Re one em Gomer ae React () 
Chico Bridge- Fit Sie ae SOP nee Oecd EEme do... 
Jacinto. ...... OM ames eee e esse or cee |naeaa doe aan een 
Lake County.....-...- Allen Springs.............-- Cleveland...........--. Uranidea semiscaber.| Eigenmann & Eigen- 
mann. 
Feather River............-- Rater & Chamber- | Cottus asper.....-...- 
ain. 
EPA TCROG GICs saacone naan =< Rutter & Atkinson........ COs paca pass aae 
Mare Island. - .| San Pablo Bay A ea Cera tee | sane (Same =m ane Jordan & Jouy. 
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