no. 1814. TWO RARE FLATFISHES— EEXDALL. 203 



Total length about 2f inches; head 3.S2; depth 1.85; lower eye 

 4.75; distance from lower eye to tip of upper jaw 2.77; depth of 

 caudal peduncle 1.70 in head. D. 64; A. 50; V. 5; C. 16. 



Strongly fringed about the head, in front of dorsal and ventral, and 

 crossrows of cilia on body; tips of rays of vertical fins and caudal 

 bifid. 



Color in formalin very dark brown with slight traces of fourteen or 

 more darker crossbars on body, which have disappeared after a long 



'"S 



:y 



Fig. 2.— Gymnachirus nudus. 



time in alcohol, the body becoming almost black; left side very 

 dusky but not so black; tips of vertical fin rays white. (Cat. No. 

 67356, U.S.N.M.) 



More remarkable than the presence of this bottom fish in southern 

 Massachusetts waters is the fact that it was taken in a so-called pond 

 or estuary usually inclosed from the sea several months of the year. 

 Of course, in the pond it is a chance occurrence, probably being one 

 of the numerous stray species from southern waters brought north 

 by the Gulf Stream as a surface-swimming young. 



