266 



east of Bonaventure Island, in 56 fathoms, stones and coarse sand, dredged 

 by the writer in 1872, and subsequently identified with this species by 

 Professor VerrilJ. 



Amaroucium glabrum, Verrill. 



Amoiiroucium glabrum, Verrill (1871). 

 Amaroeciuin glabrum, Verrill (1879). 



" Eastport Harbour and Grand Manan, low-water, under stones, to 60 

 fathoms, stony and shelly bottoms, attached to stones, shells, ascidians, etc., 

 common, 1870" (Verrill). Le Have Bank, N.S., in 60 fathoms, U. S, Fish 

 Commission 1872 (Smith and Harger). Gulf of St. Lawrence, dredged by 

 the writer, in 1872, fifteen miles S.S.E. of Bonaventure Island, in 50 fathoms ; 

 also in 1873, on the Orphan Bank, and in Gaspe Bay. 



Family Botryllidce. 



BOTRYLLUS. (Species undetermined.) 



Gulf of St. Lawrence, dredged by the writer, in 1871, half way between 

 Pointe des Monts and the west end of Trinity Bay, in 96 fathoms ; and, in 

 1872, fifteen miles S.S.E. of Bonaventure Island, in 50 fathoms. 



Family Ascidiickn. 



AsciDiA COMPLANATA, Fabricius. 



Ascidia complanata, 0. Fabricius (1780). 

 Ascidia callosa, Stimpson (1852). 

 Ascidiopsis complanata. Verrill (1872). 



" This species " (A. callosa) "is abundant in Passamaquoddy Bay from 

 low- water mark to thirty feet" (? fathoms). "It is usually found adhering 

 broadly by the left side to the under surface of large stones." Grand 

 Manan, " very abundant on shelly bottoms, affording attachment to many 

 species of zoophytes" (Stimpson). "Eastport, Me., and Grand Manan, at 

 low-water mark under stones, in pools between tides, and at all depths to 120 

 fathoms, on stony bottoms, very abundant, 1870" (Verrill). Off Cape Sable, 

 Nova Scotia, SS. Albatross dredgings of 1883 (Verrill). Between Pictou 

 Island, N.S., and Cape Bear, P.E.I.; on the Orphan Bank, and at many 

 localities in the Gulf of St. Lawrence, dredged by the writer in 1871, 1872 

 and 1873. " Abundant at the Strait of Belle Isle in 40 to 50 fathoms, 

 occuring as on the coast of Maine, but growing to a larger size in masses 

 affording shelter to various worms, Gephyrea, and Modiolarije, and serving a& 

 a base of attachment to numerous Hydroids " (Packard). 



