586 PLIOCENE MOLLUSCA. 



by Wood from R. G. Bell, figured as the typical form. This is my fig. 7. 

 Wood's figure is similar in form but considerably shorter. There is another 

 in the York Collection with a much longer and conical spire (fig. 8), which I 

 suggest may be called var. eloiujata. This, I believe, has been generally known as 

 M. Isevigata, but it differs widely from that represented as such in the first part 

 of the first Supplement of the Mon. Crag Moll. I have no specimen of this, and 

 must refer the student to the drawing of it and to the description given in my 

 next paragraph. 



Menestho laevigata, S. V. Wood. 



1872. Mene)<fho hvvignta, S. V. Wood, Mon. Crag Moll., 1st Suppl., pt. i, p. 57, pi. iv, fig. 19. 

 1890. Menestho lievkjata, C. Reid, Plioc. Dep. Brit., p. 246. 



Specific Characters. — Shell elongate, turreted, smooth, with a rather obtuse 

 apex ; whorls 8 — 9, flattened ; mouth ovate, angulate above, a fifth part of the 

 total length. Columella incurved; outer lip simple, acute. 



Dimevsiovs. — L. 9 mm. B. 4 mm. 



Distribution. — Not known living. 



Fossil : Coralline Crag : Sutton. 



Remarks. — Wood informs us that only a few imperfect specimens, and one 

 perfect, had been found by him in the Coralline Crag, and that the latter was 

 destroyed while in the hands of the artist. If the only figure we possess is 

 correctly drawn — which seems to me somewhat doubtful — it differs from the M. 

 hritannica of A. Bell. Further inquiry may decide. 



Menestho basistriata, Btheridge and Bell. Plate L, fig. 9. 



1893—98. Menestho hasistriata, A. Bell, Proc. Roy. Irish Acad. [S], vol. ii, p. 627, 1893 ; Trans. Eoj. 

 Geol. Soc. Cornwall, vol. xii, p. 154, 1898. 



Specific Cluiracters. — Shell minute, fairly solid, slender; whorls 5, but slightly 

 convex, tlie last more than half the total length, ornamented by fine spiral striae 

 on the lower part; suture well marked; spire elongate, regularly tapering; 

 mouth ovate, narrow ; somewhat expanded below, angulate above. 



Dlme)is!.o)is. — L. 2*5 mm. B. 1 mm. 



iJistyibutioii. — Not known living. 

 Fossil : St. Erth. 



Reviarls. — This minute shell has only been reported from St. Erth. It is 

 specially characterised, as the name denotes, by the fine but distinct striation of 

 the basal part of the body- whorl. 



