LEPTINARIA, S.-G. NEOSUBULINA. 323 



Curacao: St. Ann's, numerous under stones (Gibbons). 



Cionella gloynii GIBBONS, Journal of Conchology, ii, p. 135, 

 pi. 1, f. 1 (May, 1879). Cionella gloynei Gibbons, W. G. 

 BINNEY, Annals of the New York Aead. of Sciences, iii, p. 

 101, pi. 7, f. E (teeth). 



Var. minuscula Pils. PL 47, fig. 18. 



A specimen from Curacao, apparently referable to gloynii 

 as a small variety, and which has lost some of the early 

 whorls, is figured, pi. 47, fig. 18. There is a distinct con- 

 traction of the spire above the fourth whorl from the base. 

 6% whorls remain, but there could hardly have been so many 

 as in typical L. gloynii. The later whorls are rather flat- 

 tened. The columella is concave above, strongly projecting 

 below, having the oblique truncation and inwardly twisted 

 shape usual in Leptinaria. The moderately strong parietal 

 lamella enters undiminished as far as can be seen in the 

 mouth. Length of the truncate shell 7.8, diam. 2.3, aper- 

 ture 2.25 mm. 



43. L. HARTEETI (E. A. Smith). PI. 47, fig. 17. 



Shell elongate, cylindric, narrowed above, corneous, slightly 

 shining, striated with delicate, oblique, curved growth-lines. 

 Whorls 8, the apical two large, convex, teat-shaped, the rest 

 somewhat convex, parted by a slightly oblique and not deep 

 suture; last whorl hardly descending. Aperture small, in- 

 versely auriform, scarcely one- fourth the total length; lip 

 thin, simple ; columella lightly arcuate, reflexed above, spir- 

 ally twisted below ; parietal lamella strong, projecting, enter- 

 ing a long distance. Length 9, diam. 2.25, aperture 2 mm. 

 (Smith). 



Buen Ayre (Hartert). 



Neosubulina harterti SM. ; Proc. Malac. Soc. Lond., iii, p. 

 115, fig. II (1898). 



"The mammillated apex is often slightly out of the per- 

 pendicular. On making a section of one specimen the pari- 

 etal lamella was found to extend about a whorl and a half 

 inwards. The radula, kindly examined by Mr. W. Moss, is 

 Stenogyroid ' ' (Smith) . 



