LIST OF LABRADOR MARINE ANIMALS. 415 



Saxicava rugosaL'mn. Common in 10--50 feet Limestone pebblea 

 are often fished up from the Gulf, which are bored into in every 

 direction by these shells, which are then become short and much 

 thickened. 



Gasteropoda. 



Clione limacina Phipps. (Clio borealis Brug.) Seen frequent- 

 ly floating near the surface in calm weather. 



Proctoporia f sp. A species with an expanded foot was taken 

 in 50 feet on the Bank. It was not discovered until immersed in 

 alcohol, and is undistinguisbable, though it differs from anything 

 in New England, approaching rather Fabricius' figure of P. 

 fusca. ~No other species of Nudibranchs, were found, though the 

 ova frequently occurred in round masses on sea weeds in the Lami- 

 narian zone. 



Gylichna alba Loven. Several large specimens with a thin 

 brown epidermis, and differing in no respect from one from Green- 

 land, occurred in 10-15 feet mud and sand. 



Philine lineolata Stm. Frequent, with the preceding. 



Chiton marmoreus Fabr. From low water to 50 feet. 



C. albus Linn. Several in 50 feet. 



Tectum testudinalis Mull. Largest and most abundant at 

 low-water mark. The young were dredged in 15 feet. 



Diadora noachina Gray. Several in 10-50 feet. 



Scissuretta crispata Flem. Dr. Dawson has detected this 

 species in sands examined for Foraminfera, as also the following 

 species. 



Adeorbis costulata Stm. 



Margarita cinerea Gould. Grows largest on sandy bottom in 

 50 feet. 



M. undulata Sby. and Brod. Common in 15-20 feet sand. 



M. helicina Moll. Common, 2-15 feet. 



Rissoa minuta Stm. One dead specimen occurred above 

 high water mark. 



Rissoa castanea Moll. R. exarata Stm. 15 feet sand. 



Lacuna vinota Turt. The plain and banded varieties were 

 common. 



Littorina vestita Gould. T. vestitus Say L. rudis Gould. 



L.palliata, Gould. L. Uttoralis, F. and H. Both these species 

 occurred abundantly and with variations, as in Maine. 



Scalaria groenlandica Perry. A fragment only occurred. 



Tarritella erosa Couth. Abundant. 



