101 



Packard, and the writer. This and the next two species were first recognized 

 as Canadian by Sir J. W. Dawson in 1859, from specimens dredged by 

 Bell, off Marsouin, in 1858. 



HiPPOTiiOA EXPANSA, Dawson. 



Hippothoa divaricata, var. cxpansa, Verrill (1879). 



The types of this species (or variety) are from Marsouin, and similar 

 specimens have since been collected at many other localities in the Gulf of 

 St. Lawrence, and in the Strait of Belle Isle, by Sir J. W. Dawson, Packard 

 and the writer. Sir J. W. Dawson says that //. expansa has been found 

 fossil in the Pleistocene of Riviere du Loup and Beauport. 



Family Escharidoi. 

 Lepralia pertusa (Esper). 



Specimens dredged at Marsouin, off Anticosti and the Mingan Islands, 

 near Caribou Island, on the Labrador coast, and at various localities in the 

 Gulf of St. Lawience, have been identified with this species by Sir J. W. 

 Dawson in 1859, by Verrill in 1863, by Packard in 1863 and 1867, and by 

 the writer in 1872. More recently (in 1892) Hincks has refigured the 

 species from a St. Lawrence specimen, and Sir J. W. Dawson has recorded 

 the occurrence of L. pertusa in the Pleistocene deposits of Riviere du Loup, 

 Beauport and Labrador. 



But, on the other hand, in 1879, Verrill writes : — " there appears to be 

 great confusion in regard to the identification of L. pertusa, and doubtless 

 several species have been confounded under that name. American writers 

 have referred several distinct species to pertusa, and I am not sure that the 

 genuine pertusa inhabits our coast. The species thus named by Dawson, on 

 examination of specimens kindly furnished by him, proves to be Smittia 

 porifera. Probably S. Candida has also been identified as pertusa by some 

 writers."* 



Lepralia hippopus, Smitt. 



"Gulf of St. Lawrence, Dr. Dawson"; and " Postpliocene, Canada, — 

 Dawson" (Hincks, 1880). 



Lepralia spathulifera, Smitt. 



Dredged by the writer in the Gulf of St. Lawrence, — eight miles S. E. of 

 Bonaventure Island, in 56 fathoms, in 1872; off Grande Greve, Gaspe Bay, 



* Proceedings of the U. S. National Museum for 1879, vol. ii., p. 194. 



