RADIATES. 153 



^Marine lu\ ertebrata), although it liad not been recorded from any local- 

 ity between the Bay of Fundy and Greenland. The numerous specimens 

 in this collection serve to confirm that conclusion. 



Common at low-water in the Gulf of Cumberland (lots 179, 237, 664), 

 Penny Harbor, October 4, lot 237. Gravel beach, head of gulf, June 1, 

 1878. 



POBIFERA. 



Two or three species of sponges, not yet determined, are in the collec- 

 tion. The most interesting, as well as most common one, forms elongated, 

 erect, rather flaccid tubes, two or three inches high and .25 to .35 in 

 diameter, open at top. 



It occurred on the gravel beach, head of the gulf, attached to stones, 

 June 13, 1878, lot 770; also in lot 643. 



