No. 5.] WHITEAVES — DEEP-SEA DREDGING. 



267 



is generally sandy. The founa of the Straits is of a decidedly- 

 Acadian type. A few sponges, hydroids and crustaceans collected. 

 here have yet to be studied. The annelids are fine and frequent,, 

 but the echinoderms are all very common species. At depths ot 

 more than four fathoms, in Northumberland Straits, the following: 

 species were collected : 



Crustacea, 

 Homarus Americanus (fry.) fUnciola irrorata Say. 



Crangon vulgaris. 

 fHippolyte pusiola Kr. 

 fDiastylis lucifera. 

 t " sculpta? 6r. (7. *S'ar5. 

 fPontoporeia femorata. 



fAmphithoe, sp. 

 fPtilocheirus pinguis. 

 fMelphidippa, sp. 

 fldotea phosphorea Harger.. 



TUNICATA. 



♦Eiigyra pilularis V. 



Mollusc 



Pecten tenuicostatus Migh, 

 Yoldia limatula Sen/. 



" sapotilla Gould. 

 Nucula delphinodonta Migh. 

 Astarte undata Gould. 

 Cyprina Islandica Linn. 

 Cardium pinnulatiim Con. 

 Callista convexa Say. 

 Petricola pholadiformis Lam. 



Pelonaia arenifera St. 



A. 



Mactra lateralis Say. 

 Pandora trilineata Say. 

 Turbonilla interrupta Totten, 

 Lunatia tviseriata Say. 

 Nassa trivittata Say. 

 Buccinum undatum Linn.. 

 Sipho pygmaeus GUI. 

 Bela cancellata Migh. 



