418 LIST OF. LABRADOR MARINE ANIMALS. 



S. cancellata Fabr. 



S. glomerata Mull., Fabr. F. G. Large, round, smooth, aperture 

 round, sinistrose, raised slightly from the whorl beneath. The adult 

 shell is not flattened out beneath upon the surface of objects, but 

 nearly free. 



Diameter of the tube T T - in., of the whole shell 2\ tenths. The 

 largest species observed occurring on the edges of Cardum in 10 feet 

 mud, but more abundantly in company with the preceding species 

 in 50 feet hard bottom. Other specimens are a little smaller, but 

 with a slight ridge on the upper surface, occurred witb it. I have 

 a specimen of this form also, from Greenland, together with the 

 slightly curved and flattened convex young shells. 



S. quadrangularis Stm. With the preceding species. 



Vermilia serrula Stm. Abundant with the preceding. 



Pectinaria JSschrichtii Ratkke. Very abundant and large, es- 

 pecially in 10 feet mud on fish offal thrown overboard from fishing 

 vessels. One was taken at low water mark. 



Terebella n. sp. 50 feet Bank. 



Siphonostomum plumosum, Miill., 10 feet mud. 



Cirrhatulus n. sp. 



Nephthys coeca Fabr. 



Heteroneis arctica Oersted. One specimen was found swimming 

 on the surface. 



Eteone sp. 



Nereis pelagica Linn. 



Nereis n. sp. Allied to denticulate/., and like that found in mud 

 between tide marks. 



Lepidonote cirrata Oersted. 10-50 feet. 



L. punctata Oersted. 



Crustacea. 



Cytherina Mulleriu? In 15 feet gravel. 



Cytherina sp. 



Dapthnia ? A very large species, two tenths of an inch in length 

 is abundant in fresh water pools. It is not the D. retispina of 

 Greenland. 



Phoxichilidium sp. At a little below low water mark. 



Nymplion grossipes Kroyer. In 50 feet Bank. 



Coronula diadema. On the grampus. 



Balanus balanoides Linn. 



B. porcatus Da Costa. 



Cuma sp. A little below low-water mark. 



