498 



THE FUR SEALS OP THE PRIBILOP ISLANDS. 



14. Pygosteus pungitius (Linnreus). 



We obtained but one small specimen of this flsh, which was taken from the 

 throat of a specimen Osmerus dentex at Grantley Harbor. The dorsal and anal fin 

 rays are in greater numbers than is usual, being: D., IX, 11; A., 1, 10. The ventral 

 spines are almost one-half length of head. 



Following are the dorsal and anal formulae of five specimens from Nushagak, 

 Alaska, collected by the Albatross: 



In all, the ventral spines are slightly less than one-half of head. 



15. G-asterosteus cataphiractus (Pallas). 



We found this flsh abundant in the river at Grantley Harbor. They agree 

 perfectly with specimens from Kamchatka, the type locality. They also agree well 

 with Richardson's description and figure of Oasterosteus insculptus from Northvim- 

 berland Sound. They are more robust than the southern form; the caudal keel is 

 more strongly developed; the pectorals are a little longer and stronger; the spines 

 are heavier, the lateral plates reach farther down on the sides, and their posterior 

 edges are much rougher. 



This southern form is Gasterosteus serratus Ayers. (Proc. Gal. Ac. Sci., 1855, 47.) 



The following is the fin count of our four specimens : 



le.Ammodytes personatus (Girard). 



Type locality : Cape Flattery, Washington. 



Measurements of two specimens from Chignik, Alaska: D., 60; A., 28. Head, 4| 

 in length; depth, 11. Eye, IJ in snout and 4^ in head. Lateral folds, 140 The pec- 

 torals reach past front of dorsal and are a little longer than one-half head. D., 61; 

 A., 30. Head, 4J; depth, lOJ. Eye, IJ in snout and 5 in head; lateral folds 138; 

 pectorals a little longer than one-half head. 



Port Clarence: D., 54; A., 28. Head, 4J; depth 11. Eye, 1| in snout or 4^ in 

 head; lateral folds, 140. 



Summer Bay, Unalaska : D., 61 ; A., 31 ; Head, 5 ; depth, 9. Eye, 6J ; lateral folds, 

 173. Pectoral one-half head. 



We have compared these specimens with specimens from the type locality of 

 Ammodytes personatus, and we are unable to find any difference between them. The 

 specimens from Neah Bay near Cape Flattery show more rays in the dorsal and anal 



