269 



Halocynthia tuberculum (Fabricius). 



Ascidia tuberculum, O. Fabricius (1780). 

 Ascidia carnca, Agassiz (1850). 

 Cynthia placenta, Packard (1867) ; pars. 

 Cynthia carnca, Verrill (1871). 

 Halocynthia tuberculum, Verrill (1879). 



"Grand Manan, 15 to 20 fathoms, shelly," 1870 (Verrill); Le Have Bank, 

 N.S., in 45 fathoms, U. S. Fish Commission, 1872 (Smith and Harger). 

 Between Pictou Island, N.S. ; and Cape Bear, P.E.I. ; and fifteen miles S.S.E. of 

 Bona venture Island, in 50 fathoms ; Whiteaves (Verrill). " Dredged in 

 the Strait of Belle Isle, 40 fathoms, hard bottom ; Henley Harbour, 10 to 

 20 fathoms, sandy ; Cateau Harbour, Long Island," Labrador, in 15 fathoms 

 (Packard — C. placenta). 



Pelonaia arenifera, Stimpson. 



Between Cape Breton and Prince Edward Island, and throughout 

 Northumberland Strait, common, dredged by the writer in 1873. In 15 

 fathoms, sand, Salmon Bay (east of the mouth of the Esquimaux River, P. 

 Q.) 1860 (Packard). 



BoLTENiA BoLTENi (L.) and var. rubra. 



Vorticella Bolteni, L. (1771). 



Ascidia clavata, O. Fabricius (1780). 



Boltenia Bolteni, Savigny (1816) ; and Packard (1867). 



Boltenia reniformis, MacLeay (1825) ; Gould (1841) ; and Stimpson. 



Boltenia rubra, Stimpson (1852). 



Boltenia clavata, Stimpson (18G0) ; and Gould (1870). 



Boltenia oviformis (Savigny) Packard (1863). 



Grand Manan, on " rocks in deep water " (Stimpson). Le Have Bank, 

 N.S., in 45 fathoms, U. S. Fish Commission, 1872 (Smith and Harger) : and 

 ofiF Cape Sable, N.S., U.S. Fish Commission, SS. Albatross dredgings of 1883 

 (Verrill). Gulf of St. Lawrence, dredged by the writer in 1872, eight miles 

 S.E. of Bonaventure Island, in 56 fathoms, three specimens, eighteen inches 

 long, when alive, — and fifteen miles S.S.E. of Bonaventure Island, in 50 

 fathoms, two specimens nearly two feet long ; and in 1873, at the entrance 

 to Gaspe Bay, and off Cape Bon Ami, P.Q., in 30 fathoms. Bank off Caribou 

 Island, Packard, who says that a "comparison with specimens from Green- 

 land shows that this common species is found along our north-eastern coast 

 from the Bay of Fundy to Greenland." 



