PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 471 

 Measurements — Contioued. 



Millimeters. 



About 22 



Anal: 



Distance from snout 



Length of base 



Disiance of vent from snout 



Len<;th of first ray 



Length of longest ray (Uth) | 21 



Lengt h of last rav 20 



Cau.lal: 



Length of middle rays 



Pectoral: 



Distance from snout 



Length 



Ventral : 



Distance from snout 



Lenirth 1 3^ 



Brauchiostegals i „^ X 



Dorsal 



Anal ^ 



Caudal ■. 



Pectoral 



Ventral 



Number of scales in lateral line 



Is umber of transverse rows above lateral line 



Number of transverse rows below lateral line 



26 



VI, 13; 

 12 

 +13+ 



20 



1,5 



26 



10 



13. Cottus polyacanthocephalus Pallas. 



29139 (84). Head of Kingcorabe Inlet, Brit. Col. Aug. 2, 1881. 



29140 (94). Port McLaughlin, Brit. Col. Aug. 5, 1881. 



29141 (98). Port Simpson, Brit. Col. Aug. — , 1881. 



29142 (106.) Wrangel, Alaska. Aug. — , 1881. 



29139.— Length 4-i\ inches. D. X, 13 ; A. 12 ; found in 18 fathoms, 

 nearly fresh water. 



29140.— Length 12tV inches. D. X, 14; A. 12; in 14 fathoms of 

 water. 



29141.— Length 12^ inches. D. X, 14 ; A. 11 ; in 14 fathoms. The 

 middle preopercular spine of the right side is distinctly bifid, as a result, 

 no doubt, of some early injury. This species sometimes has two, but 

 usually three, developed preopercular spines. 



29142.— Length C inches. D. IX, 14 ; A. 12. 



14. Gymnacanthus galeatus Bean. 



29144 (102) <?. Chacan, Alaska. Aug. 15, 1881. 



29145 (116). Sitka, Alaska. Sept. 13, 1881. 



The first of these is S-^V inches long and bears out the characters of 

 the species fully as to armature of bead, depth of body about half length 

 of head, &c. D. XI, 16 ; A. 18. Ventral reaches to third anal ray. 

 Prom 10 fathoms of water. 



The smaller individual is 4^^^ inches long, and also has the characters 

 of the adult. 



15. Artedius notospilotus Girard. 



29143 (80). Drew's Harbor, Brit. Col. July 27, 1881. 



Length 5 inches. D. IX, 17 ; A. 13 ; V. I, 3. Caught in 12 fathoms. 



