554 ADDENDA 



whether the American form is actually identical with the European, a question 

 on which we have nothing to contribute. 



Rock eel {Pholis gunnellus Linnaeus), p. 359 



The following observations, communicated by W. C. Schroeder, prove that 

 the rock eel descends deeper in the Gulf of Maine than we had supposed (p. 361) : 

 Twelve miles southeast of Round Shoal buoy, Nantucket Shoals; several specimens 

 found in the stomachs of cod in 15 fathoms; also one, eaten alive, from the mouth 

 of a pollock caught at 34 fathoms on Platts Bank, July 28, 1924. 



American pollock (Pollachius virens Linmeus) , p. 396 



The following measurements by W. C. Schroeder show that under favorable 

 conditions pollock may be considerably heavier at corresponding lengths than those 

 listed on page 397: 



Fish caught on Rose and Crown Shoals off Nantucket, August 16, 1923. 



Length, inches Weight, pounds 



275* » 



29V 2 "H 



QK __ Zl 



4iji:::::::::::::::::::::::::::::: ::::- ^v 2 



Capture by the Fish Hawk of considerable numbers of larval pollock in the 

 tow net during December and January, 1924-25, off the western and southern 

 sides of Stellwagen Bank proves that this important spawning ground is a favor- 

 able nursery for the young fish (p. 405). 



