SYKES : MOLLUSCA OF THE PORCUPINE EXPEDITION. 39 



DiAPHANA EXPANSA (Jeffreys). 



Amphisplujra expansa, Jeffreys: Rep. Brit. Assoc, 1864 (1865), 

 p. 330 ; Locard, Exped. Scient. Trav. Talisman, vol. i, p. 77. 

 Diaphana expansa, Jeffreys : Pilsbry, Man. Concli., vol. xv, p. 284. 

 Amphisphyra quadrata, Monterosato : Journ. de Conchyl., vol. xxii 



(1874), p. 280. 

 "Porcupine" Expedition, 1869, Stations 11 (live), 12, 47; 1870, 

 Station 3. 

 Distribution. — Greenland (Torell) ; Norway (Sars, etc.) ; British 

 Isles and Shetlauds (Jeffreys, etc.) ; Gulf of Gascony, 677 metres 

 (Locard); Sicily (Monterosato). Quaternary of Sicily (Locard). 



I give D. quadrata as a synonym, on the authority of Mr. J. T. 

 Marshall. 



DiAPHANA CANDIDA, Bl'OWn. 



Diaphana Candida, Brown: 111. Conch. Gt. Brit., 1827, pi. xxxviii, 



figs. 13, 14. 

 Diaphana minuta, Brown : Pilsbry, Man. Conch., vol. xv, p. 282. 

 Bulla hyalina, Turton nee Gmelin. 



"Porcupine" Expedition, 1869, Station 18 (live). 



Distribution. — " i'rom Spitzbergen (Torell) to the Egyptian coast 

 of the Mediterranean (Schneider) ; Madeira and the Canaries 

 (McA.ndrew); Davis Strait to Cape Cod. One of the glacial fossils of 

 Scotland and Scandinavia" (Jeifreys). 



Diaphana Seguenz^ (Watson). 



Amphisphyra 8eguen%(B, Watson : Challenger Rep., Gastropoda, p. 646, 



pi. xlviii, fig. 5. 

 Diaphana Seguenza;, Watson : Pilsbry, Man. Conch., vol. xv, p. 282. 



" Porcupine" Expedition, 1870, Stations 16, 17, 17^. 



Distribution. — West of the Azores, 1000 fathoms (Watson). 

 Pliocene of Calabria. 



BULLA, Linn. 

 Bulla pinguicula, Je&ej-s. 



Bulla subrotunda, Jeffreys: Rep. Brit. Assoc, 1873 (1874), p. 113 



(nom. nud.). 

 Bulla pinqiiicula, Jeffreys: Ann. Nat Hist., ser. v, vol. vi (1880), 



p. 318 (nom. nud.); Rep. Brit. Assoc, 1880 (1881), p. 387 



(nom. nud.) ; Seguenza, Mem. Ace Lincei, ser. iii, vol. vi 



(1879), p. 250, pi. xvi, fig. 7; Watson, Challenger Rep., 



Gastropoda, p. 638. 

 Bulla abyssicola, Dall : Bull. Mus. Comp. Zool., vol. ix (1881), p. 97; 



vol. xviii, p. 56, pi. xvii, fig. 11. 

 Bulla Guernei, Dautzenberg : Camp. Scient. Albert I^'", fasc i (1889), 



p. 24, pi. i, fig. 5. 

 " Porcupine " Expedition, 1870, Stations 3, 22, off Cape Espichel, 30, 



56, off Jijeli. 



