TRINIDAD LEPTINARIA. 301 



It is related to L. paludinoides Orb. of Cuba, but that is 

 slightly more lengthened with flatter whorls. 



la. Var. HAITENSIS n. v. PL 46, fig. 10. 



The shell is smaller but with as many whorls as salleana. 

 Whorls somewhat more convex, the last swollen. Outer lip 

 arched forward more strongly above than in salleana. Length 

 6.2, diam. 3, aperture 2.7 mm., whorls 7. 



Cape Haitian (J. B. Henderson). 



8. L. SIMPLEX (Guppy). PL 40, fig. 14. 



' ' Shell cylindric-turrite, longitudinally sinuate-plicate, buff, 

 covered with a straw-colored cuticle; whorls 8 to 9, slightly 

 convex, the last exceeding the length of the spire ; suture in- 

 cised. Aperture ovate-oblong ; columella strongly twisted or 

 somewhat reflexed, truncate; peristome simple, a little pro- 

 jecting above and in the middle. 



" Length 14, diam. 4, height of aperture 4.5 mm. 



"Length 12, diam. 5, height of aperture 5 mm. 



"Length 15, diam. 6, height of aperture 4.5 mm. 



"Var. a, columella strongly twisted, broadly and obliquely 

 truncate ; aperture much dilated anteriorly. 



"Var. &, larger, rimate; columella refiexed, scarcely trun- 

 cate (Guppy}." 



Trinidad (Guppy) ; Oropouche, Trinidad (Ponsonby). 



Spiraxis simplex GUPPY, Annals and Mag. Nat. Hist., 4 ser., 

 i, p. 438 (June, 1868). PFR., Monogr., viii, p. 257. CROSSE, 

 Journ. de Conch., 1890, p. 37. GUPPY, Journ. of Conch., vii, 

 p. 212. SubuUna (Nothus) simplex Guppy, SMITH, Journ. 

 of Conch., viii, p. 235, pi. 8, f. 1 (1896). Tornatellina cos- 

 tellosa GUPPY, Proc. Scient. Asso. Trinidad, 1869, p. 243; 

 cf. Revised List of the Land and Freshwater Molluska of 

 Trinidad, p. 6, in Proc. Sci. Asso. Trinidad, 1872. 



A species not unlike L. paludinoides and L. salleana. In 

 his revised list of 1872 Mr. Guppy states that "Tornatellina 

 costellosa was described from an immature form of this shell. ' ' 

 I have not seen the species, and copy Mr. Smith's figure. 



9. S. URICHI Smith. PL 40, fig. 13. 



Shell elongate, turrite, narrow, rimate, pale, pellucid, 



