684 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [NoV. 1-4, 



P. 575. Ledufrngilis. New England ( Verrill, as L. unca, Gould) ; 

 1 15 fms. Sea of Marmara {Sprat t) ; 20 fms. 



P. 576. Ledafriyida. Between the Hebrides and Faroes ('Triton' 

 cruise) ; 640 fms. 



P. 577. Leda tenuis. Between the Hebrides and Faroes ('Triton' 

 cruise) ; 640 fms. 



P. 578. Leda striolata. Mediterranean (' Travailleur ' Exp., 

 1881); 221 and 913 fms. Between Gibraltar and 

 Azores (' Josephine ' Exp.) ; 550 fms. 

 „ Leda lucida. Between the Hebrides and Faroes ('Triton * 



cruise) ; 516 and 570 fms. 

 „ Leda pusio. Mediterranean ('Travailleur ' Exp., 1881) ; 

 653 fms. 



P. 579. Leda jeffreysi. Dele Palermo as a locality. 



„ Leda subaquilatera. Between the Hebrides and Faroes 

 ('Triton' cruise); 640 fms. 



P. 580. Leda expansa. Between Gibraltar and Azores (' Jose- 

 phine ' Exp.) ; 790 fms. 



P. 581. Nucula cegeensis. Mediterranean (Italian Exp., 1881); 

 1521-1536 fms. Fossil. Miocene: Marne Vaticano 

 (Ponzi) . N. decipiens of PhiHppi. Both names bear 

 the same date ; but the description given by Philippi 

 is much more full and precise than that of Forbes ; 

 and perhaps decipiens ought to be preferred. 



P. 582. Nucula corbuldides. Between the Hebrides and Faroes 

 (' Triton ' cruise) ; 516 and 570 fms. Mediterranean 

 (Italian Exp., 1881) ; 1521-1536 fms. 

 „ Nucula tumidula. Between the Hebrides and Faroes 

 (' Triton ' cruise) ; 516 and 570 fms. 



P. 584. Pectunculus nummarius. Fossil. Pliocene : C. Verd I. 

 (de Rochebrune). 



P. 585. Limopsis cristata. Between the Hebrides and Faroes 

 (' Triton ' cruise) ; 516 and 570 fms. Bay of Biscay 

 ('Travailleur' Exp., 1881 and 1882); 341-1693 fms. 

 Never half the size of L. minuta, and different in 

 shape, sculpture, dentition, and crenatiou of the inner 

 margin. 



P. 586. Malletia obtusa. Mediterranean (Italian Exp., 1881) ; 

 337-464 fms. 

 ,, Malletia cuneata. Mediterranean (Italian Exp., 1881) ; 

 337-1536 fms. 



Part III., P. Z. S. June 1881 :— 

 P. 695. Lepton lacerum. N. Spain (' Travailleur ' Exp. 1882); 



282 fms. Fossil. Pliocene : Sicily {Brugnone). 

 P. 696. Montacuta ferrwjinosa. New England (Verrill) ; low 



water. 

 P. 698. Montacuta bidentata. New England ( F'em^/) ; shore to 



7 fms. 



