522 ADDENDA. 



Page 167. Add a new species : — 



21a. Cottus criniger. 



D. 9/16. A. 14. V. 1/3. 



Two spines above the snout. Crown of the head smooth, with 

 many hair-liko tentacles. Pracoperculum with a short bifurcate 

 spine posteriorly. Teeth on the vomer, none on the palatine bones. 

 The lower margin of the prseoperciiliim, the base of the dorsal fins, 

 and the anterior half of the lateral line with many hair-like ten- 

 tacles. Brownish, spotted with darker. 



Coast of California. 



a-c. Monterey. 



Description. — The greatest height of the body, above the root of 

 the pectoral fin, is contained four times and three-fourths in the 

 total length, its greatest width above the pectoral six times. The 

 tail is compressed, and its height before the caudal is one-thirteenth 

 of the total length. The head resembles in form more that of a 

 Triyla than of a Cottus ; it is about as high as broad ; its length is 

 contained four times and a fourth in the total. The snout is high, 

 somewhat short, with the upper profile straight, and abruptly de- 

 scending. The upper jaw is a little longer than the lower ; the cleft 

 of the mouth is of moderate width, and the maxillary does not extend 

 to the vertical from the centre of the eye ; there is a pair of smaU 

 spines above the snout. The eye is lateral, but situated immediately 

 below the upper profile of the head ; its diameter is contained three 

 times and a half in the length of the head ; the interorbital space is 

 very slightly concave, and its width is much less than that of the 

 eye. The crown of the head and the occiput are flat, without any 

 protuberances, bat with many short hair-Uke tentacles. The pro;- 

 operculum is armed posteriorly with a short bifui'catc 8])ine ; no 

 other spines are visible. Branchiostcgals six ; giU-membrane con- 

 tinuous under the throat. 



The first dorsal commences above the extremity of the operculum, 

 is rather low, and not continuous with the soft ; the length of its 

 base equals its distance from the anteiior margin of the orbit. The 

 second dorsal fin is somewhat higher than the first. The caudal has 

 the posterior margin convex, and its length is contained five times 

 and a half in the total. The anal fin commences in the vertical 

 from the fourth dorsal ray, and terminates before the soft dorsal fin ; 

 it is lower than the latter. The pectoral is composed of fifteen 

 simple rays, and extends beyond the origin of the anal, which is 

 somewhat nearer to the root of the caudal than to the extremity of 

 the snout. The ventral reaches to the origin of the anal ; its spine 

 is enveloped in the same membrane with the first ray ; the middle 

 ray is somewhat the longest. 



The lateral line is continued to the caudal, and composed of small 

 tubes. A series of short hair-liko tentacles occupies the anterior half, 

 another series the bases of the dorsal fins. The skin of the other 

 parts is perfectly smooth. 



