IOO SYKES : THREE NEW SPECIES OF SOUTH. AM ERIC AN CLAUSILI/E. 



This pretty species is shortly ovate, but with an acute spire. It 

 has seven very slightly convex whorls, which are a trifle tabulated 

 owing to the somewhat channelled suture ; they enlarge rather 

 rapidly and are transversely grooved ; the grooves or sulci are very 

 narrow, not equidistant (some around the lower part of the body- 

 whorl being closer together than those above), and are crossed by 

 lines of growth or striae ; the first groove below the suture is rather 

 near it, thus marking off a narrow margin or fillet ; three or four 

 sulci are visible upon the upper whorls and about fifteen on the last. 

 The aperture is elongate, inversely ear-shaped, and occupies about 

 three-fifths of the total length of the shell. The columella is 

 thickened, white, contorted, and grooved, so as to appear uniplicate. 

 The general ground colour of the shell is pinkish grey or pale flesh- 

 tint. The numerous black dots run in transverse series and also 

 form more or less regular longitudinal rows. They are irregular in 

 shape, but mostly squarish. The interior of the aperture is pale 

 bluish, and owing to the thinness of the shell exhibits the external 

 dotting. 



This species, of which there are two specimens in Cuming's 

 collection, was figured by Reeve under the name of Tornatella 

 suturalts, Adams MS. It is quite distinct from the Solidula suturalis 

 of A. Adams (Proc. Zool. Soc, 1854, p. 6x) of which a small 

 specimen is correctly delineated in Reeve by figure 9c. That 

 species is longer and narrower than the form described above, of 

 a different ground colour, and has the spiral sulci more strongly 

 striated or subpunctate. 



THREE NEW SPECIES OF SOUTH AMERICAN 

 CLAUSILIyE. 



By E. R. SYKES, B.A., F.Z.S., 

 Weyj/iouth. 



Clausilia (Nenia) boliviana, n. sp. 

 T. parva breviter fusiformis, solidula, obsolete striata, striis 

 obltquis, confertissimis, fere membranaceis, sordide corneo-fusca, 

 ad suturam paruiii pallidior, qpaca, spira media parte inflatula, 

 apex obtusiusculus. Anfr 8, super i convexiores, reiiqui con- 

 vexiusculi, sutura bene impressa, filomarginata, disjuncti, ultimus 

 deorsum angustatus, sutura descendente instrurtus. turn modice 



