Starrs: Ichthvological Sukvev aihh r Sax Jlan Islands. 203 



Microgadtis proximus. 



Xiimhcr of j;i"-'akers 24 25 26 27 28 29 



Xtinil)iT of specimens 8 20 15 10 3 3 



Rays of second anal 20 21 22 23 



Xiiniber of specimens 8 24 20 7 



61. Theragra fucensis (Jordan and Cilhcrt). 



Tlio Ninuii; ot" fnnn three to seven inches in length were taken in 

 abundance in shallow water. It is only in the adult that the suboper- 

 cular bones become swollen and dense, and so distinguish the genus 

 Theragra from PoUachins. 



Family PLEURONECTID.E. 



62. Lyopsetta exilis (Jordan and Ciilbcrt). 



A large specimen, nine inches in total length, and a few small ones, 

 about fi\e inches long, were taken in deep water in the dredge. These 

 are with much hesitation referred to this species. Comparing the 

 large one with specimens from Oregon and southern California the 

 body is found to be much deeper, the head smaller, and the fin-rays 

 all a little shorter. These differences do not show, however, in the 

 smaller specimens. In all of them the eye is smaller, the dorsal begins 

 a little nearer to the snout, the distance from the interorbital to the 

 upper profile directly above the middle of the pupil is a little less, 

 the interorbital is lower, and does not extend back in such a high sharp 

 ridge, the mouth is a little smaller, and the ventrals are a little nearer 

 to the tip of the chin. 



In the large specimen from Puget Sound the length to the caudal 

 base is 190 mm. The head is 25.5 hundredths of this length; the depth 

 35; the long diameter of the lower eye 6.5; the distance of the dorsal 

 from the snout 7.5; the interorbital to the profile at middle of pupil 6; 

 the maxillary 9.5; the longest dorsal and anal rays 11.5; and the dis- 

 tance of the ventrals from the tip of the chin 24. 



A specimen from Oregon of exactly the same length has the head 

 28 hundredths of the length ; the depth 30 ; the eye 7.5 ; the dorsal from 

 the snout 9; the interorbital from the profile 6.5; the maxillary 11 ; 

 the longest dorsal and anal rays 13; and the ventrals from the chin 26. 

 The pores in the lateral line vary from sixty-one to sixty-nine in all of 

 the specimens. 



The folUnving tables show the variation in fin-rays. 



