186 PLIOCENE MOLLUSCA. 



but lie now thinks this was an error. The latter specimen was afterwards referred 

 bj Wood to Trophon [Siplio) fortitosus, Reeve ; I prefer to regard it, however, as 

 one of the varieties of S. curtiis. 



8. corclatvs belongs to the torjafus group, but can be easily distinguished from 

 typical specimens of the latter species, either Recent or fossil. It is a thick and 

 coarse shell with a distinguishing spiral sculpture, apparently a special Crag form 

 confined to those deposits. Neither Mr. Friele nor Dr. 0yen know it as Scandi- 

 navian or Arctic. 



The specimens now figured have been identified by Mr. BelL 



Sipho Menapiae^ (A. Bell). Plate XXIII, figs. 17—19. 



1888. Fusus Menapii, A. Bell, Rep. Brit. Assoc, 1888 (Bath), p. 13.5. 



1893. Fusus Menapii, A. Bell, Proc. Roy. Irish Acad. [2]. vol. iii, p. 623. 



1897. Cf. Neptunia pupoidea, Locard, Exped. Travaill. et Talisni. (MoUusques), vol. i, p. 363, pi. xvii, 



figs. 26—28. 

 1908. Cf. Neijhinea {Sipho) pupoidea, Kobelt, Icon, schalentrag. europ. Meeresconcli., vol. iv, p. 1-50, 



pi. cxxiii, figs. 4, 5. 



Specific Cliaracters. — Shell coarse, very strong and solid, fusiform ; whorls 7, 

 but slightly convex, the last three-fifths the total length, excavated below ; 

 ornamented by spiral ridges, closely crowded together on the upper whorls, more 

 widely separated on the last, extending to the base of the shell ; suture well- 

 marked but not deep; apex blunt, not regularly spiral; mouth oval, angulate 

 above ; outer lip regularly curved , inner lip forming a thin glaze on the pillar ; 

 canal very short, turning to the left. 



Dimensions. — L. 50 mm. B. 22 mm. 



Disfrihtdiov. — Recent : Bay of Biscay (?). 



Fossil : Wexford gravels ; Isle of Man. 



Bemarl's. — This Irish fossil resembles in some respects the Crag species 8, 

 cordatus, but it is thicker and more clumsy ; I agree with Mr. A. Bell that it should 

 be regarded as specifically distinct from it. It appears to resemble, perhaps more 

 nearly, a shell from the Bay of Biscay described by Locard in 1897 as Neptunia 

 pupoidea. Prof. Kobelt reproduces Locard's figure in his recent work (op. cit.). 

 I have not seen any specimen of it so can only call attention to the similarity 

 between the two. In any case Mr. Bell's name has priority. 



In a paper published in 1869" the late Prof. Harkness regarded the Wexford 

 gravels in which it occurs as of Pleistocene age ; I prefer to consider them Pliocene, 

 as does Mr. Bell, containing as they do more or less abundantly characteristic Crag 

 shells such as Neptunea contraria, Nassa reticosa, Turritelht ijicrassafa, Melamyus 



1 From Menapia, the ancient name of Waterford. 



2 G-eol. Mag., vol. vi, 1869, p. 542. 



