208 



Alexia myosotis (Draparnaud). 



Auricula myosotis, Draparnaud. 



Auricula denticulata, Gould (1841) ; not Montfort. 



Alexia myosotis, Pfeiffer (1856). 



Recorded by "Willis, with a query, as commou in Halifax Harbour. 

 " Probably an imported species, as Stimpson remarks (Shells of New England) 

 being found only in the Atlantic seaports " (Gould, second edition). 



pteropoda. 



Thecosomata. 



Family Limacinidce. 



LiMACiNA GouLDii (Stimpson). 



Spirialis Oouldii, Stimpson (1851). 



Heterofusus balca and H. retroversus, Binney* (1870) ; but, according 



to Verrill, not of European writers. 

 Limacina Gouldii, Verrill (1879). 



Two or three dead shells of this minute pteropod were dredged by the 

 writer in 1872, in the deepest spot in the Gulf of St. Lawrence, about half- 

 way between East Cape, Island of Anticosti, and the Bird Rocks, in 313 

 fathoms, black mud, with a few angular and rounded stones. Stimpson says 

 that S. Gouldii occurs on the " whole coast of New England, north of Cape 

 Cod." 



Verrill, in 1873, says that the " identity of this species with the Limacina 

 balea, MoUer, of Greenland, is very questionable." " The description of the 

 latter is brief, and no mention is made of the spiral sculpture, which is an 

 important character of S. Gouldii." '\ 



On the other hand, Binney, in 1870, makes S. Goiddii, Stimpson, and 

 Limacina balea, Moller, = Heterofusus balea, Morch, and regards the latter 

 as distinct from H. retroversus (Fleming) ; and G. O. Sars, in 1878, comes 

 to the same conclusion. J Dr. Paul Pelseneer, in 1888, § includes both Spiri- 

 alis Gouldii and Limacina balea among the synonyms of Heterofusus retro- 

 versus, which he calls Limacina retroversa. 



(Limacina helicina (Phipps) is recorded as having been taken abundantly 

 off the Labrador coast by Packard in 1864 and by L. M. Turner in 1882, 

 also in Hudson Strait ; but it has not yet been found so far south as the 

 Gulf of St. Lawrence. 



* In the Second Edition of Gould's Report on the Invertebrata of Massachusetts, p. 505. 



tU.S. Fish Commission, Report for 1871-72, p. 6G9. 



+ Mollusca Regionis Arcticje Norvegicse (Christiania), pp. 329 and 330. 



§ H.M.S. Challenger Reports, Zoology, vol. xxiii, p. 27 and 28. 



