370 L. E. CRAWSHAY. 



TUERITELLIDAE. 

 Turritella communis, Lamarck. 

 At Positions 1 (two) and 10 (one). 

 Depth, 40-42 fath. 



APOREHAIDAE. 



Aporrhais pes-pelicani (Linnaeus). 

 One dead shell at Position 1. 

 Depth, 40 fath. 



BUCCINIDAE. 

 Buccinum undatum (Linnaeus). 



At Position 3 (spawn only), 5 (one), 7 (one), 8 (two and spawn), 9 



(one), 10 (one), 17 (one), 59 (one). 

 Depth, 40-49 fath. 

 The spawn obtained at Position 3 hatched out on the following day. 



Tritonofusus gracilis (Costa). 



Specimens were obtained at Positions 10 (two), 11 (three), 12 

 (several), 14 (five), 25 (one), 32 (one), 34 (one), 35 (several), 43 

 (one), 46 (one), 52 (a few), 58 (one), 59 (one), 60 (one), 67 (one), 

 72 (five), 80 (one). 

 Depth, 42-51 fath. 



The great majority of these specimens were empty shells, or those 

 occupied by Eupagurus cuanensis or U. prideanxi, in most cases the 

 former. Living specimens were only recorded at Positions 25 (one) 

 58 (one), 67 (one), 72 (two), and excepting perhaps those recorded 

 without data at 10 and 34 these constitute the only ones obtained. 



Tritonofusus propinquus (Alder). 



One specimen at Position 58. 



Depth, 49 fath. 



This species has not previously been recorded from Plymouth, but 

 three specimens were obtained by the Huxley at the north side of the 

 Bay of Biscay in 1906 (Rennel, 148, p. 382). The localities of occur- 

 rence given by Jeffreys are : Coasts of Yorkshire, Durham, and 

 Northumberland, Berwick Bay, Aberdeenshire, Hebrides, Shetland ; 

 New Brighton, Liverpool ; Dublin Bay ; Cork ; Finmark ; Kullaberg ; 

 Kattegat ; cp. Jeffreys (147, iv, p. 339). 



MUEICIDAE. 

 Ocinebra erinacea (Linnaeus). 



At Positions 59 (spawn only), and 60 (one shell occupied by 



Eupagurus cuanensis). 

 Depth, 49 fath. 



