332 PLIOCENE MOLLUSCA. 



Upper Miocene : Colli tortonesi, St. Agata. 



Lower Pliocene: Vezza, Albenga 



Upper Pliocene: Monte Mario, Teramo, Gravina, lmola, Girgenti, Porto 

 Empedocle, Terrannova. 



Pleistocene : Ficarazzi, Militello, Caltagirone. 



Remarks. — The imperfect but unworn Wexford fossil now figured corresponds 

 with a specimen I obtained in 1903 at Ficarazzi and with some others received 

 from the Marchese di Monterosato as an undescribed species, N. totistriata, which, 

 however, he now identifies with .V. gigantula ; as to the hitter, Bellardi stated it to 

 be ecostate and spirally striated throughout. 



Dr. Gignonx (loe. clt.) figures a shell from the Calabrien deposits of Gravina as 

 N. semistriata, var. ralabrieasis, which appears to correspond closely with the 

 present form, but he also mentions N. gigantula as distinct although very near to 

 N. semistriata. M. Cossmann also quotes the former as a recognised Pliocene 

 species. 



Sign. Cerulli-Irelli, on the contrary, dealing with a number of specimens from 

 Monte Mario, some of which seem to be near to those here figured as .V. gigantula, 

 groups them all as varieties of N. semistriata. iV. gigantula, however, appears to 

 me to be more nearly related to the well-established Crag species N. labiosa than 

 to the latter. As far as the Crag is concerned, therefore, I prefer to regard the 

 three forms N. labiosa, N. gigantula- and N. semistriata as specificall}' distinct. As 

 to the typical N. semistriata, I doubt, as already stated, whether it has been found 

 in any British deposit, except at St. Erth. 



Nassa (Amycla) Edwardsi (Fischer). Plate V, figs. 22, 23 ; Plate XXXIV, fig. 15. 



1899. Nassa Edwardsi, Locard, Coq. mar. au large des Cotes de France, p. 51. 



1901-7. Nassa Edwardsi, Sealia, Atti Accad. Grioen. Sci. Nat. Catania (4a), vol. xiv, p. 14, no. 171, 

 1901 ; vol. xx, p. 35, no. 307, 1907. 



1913. Nassa semistriata, var. Edwardsi, Grigiioux, Ann. Univ. Lyon, n.s. [1], vol. xxxvi, p. 513, pi. xv, 

 figs. 8, 9. 



1914. Nassa Edwardsi, F. W. Harmer, Plioc. Moll. Gt. Brit,, pt. i, p. 86, pi. v, figs. 22, 23. 



Distribution (additional). — Recent: Portuguese coast, 370 — 820 m. 

 Fossil: Coralline Crag : Boy ton. 



Pleistocene : sub-Einaen beds : Nizzeti and elsewhere. 



Remarks. — The Crag shell figured in PI. V, fig. 22, under this name, though the 

 best I could lay my hand on at the time, was not very satisfactory. I have now 

 obtained another specimen from the Sedgwick Museum at Cambridge which better 

 represents, I think, the species in question. 



