NO. 1706. CCELENTERATES FROM LABRADOR, ETC.—BIGELOW. 317 



in height. The voracity of this form is well illustrated by the fact 

 that one individual had entirely engulfetl a young sculpin (Acantho- 

 cottus grcenlandicus Fabricius) no less than 21 mm. long, the victim 

 being doubled up so as to fit into the digestive cavity of its captor. 



M. ovum is a common species in the cold waters north of Cape Cod, 

 whither it is swept by the Labrador current, but it is of only sporadic 

 occurrence south of that dividing line. So far as known the Woods 

 Hole region marks the extreme limit of its southward dispersal in 

 American waters. It is known both from Greenland and from Spitz- 

 bergen, and is probably of circumpolar occurrence (Chun, '98, p. 10). 



BEROE CUCUMIS Fabricius. 

 Beroe cucumis Fabricius, 1780, p. 361. 



Between Cape Sable and Cape Race, July 19, about 100 small 

 specimens, 3-14 mm. high; St. Pierre, off Newfoundland, October 1, 

 1 specimen, 15 mm. high; Fogo Island, Newfoundland, July 29, 

 5 specimens, 40-50 mm. high. 



Unfortunately the large specimens were all so fragmentary that it 

 was impossible to trace the course of the stomachic canals with any 

 accuracy. However, since these appear to end blindly, the speci- 

 mens must be referred to B. cucumis rather than to B. ovata. In the 

 small specimens the blind terminations of the canals were easily 

 traced. B. cucumis was taken on the Plankton Expedition in the 

 Labrador current (Chun, '98, p. 27), and is known to be widely dis- 

 tributed throughout Arctic regions. On the coast of the United 

 States it is known to occur as far south as Cape Cod, whither it is no 

 doubt carried by the Labrador current. 



