NO. 1705. 



FOUR "S'EW PHILIPPINE LAND SHELLS— BART8CH. 



297 



Seven specimens of Cochlostyla annulata Sowerby, from von 

 Mollendorff's collection (now Cat. No. 195389, IT.S.N.M.), collected 

 at Ilocos, Luzon, measure: 



Five of these are figured on pi. 29, figs. 1, 4, 5, 10, 13. 



LEPTOPOMA FREERI, new spceies. 



Plate 29, fig.s. 6, 7, 9. 



Shell broadly conic, translucent, bluish-white. Nuclear whorls 

 two and one-half, marked by five slender spiral lirations, which are 

 promptly lost as the shell passes to the post-nuclear stage. Post- 

 nuclear whorls well rounded, marked by many (about 82 on the last 

 whorl between the sutures) fine, subequal and subequally spaced, 

 wavy, spiral striations. In addition to these, the whorls are marked 

 between the sutures by four obsolete spiral keels. Sutures weakly 

 impressed. Periphery of the last whorl marked by a strong, acutely 

 compressed keel. The lines of growth on the spire are strongly 

 retractively curved and vary somewhat in strength; the stronger 

 appearing as subdiaphanous lines. Base of last whorl well rounded, 

 narrowly openly umbilicated, marked by faint lines of growth and 

 numerous subequal and subequally spaced fine wavy spiral stria- 

 tions. Aperture very oblique, irregularly semi-oval, outer lip 

 broadly expanded *nd slightly reflected, somewhat grooved on the 

 flat surface and drawn out slightly into a claw at the peripheral keel; 

 columella equaling the lip in strength; curved, excavated, and 

 reflected; the junction with the basal lip forming an angle. Parietal 

 wall covered b}^ a thin callus. Operculum thin, horny, multispiral, 

 marked by many fine retractive, incremental lines. 



The type and fift3^-three specimens were collected b}^ Mr. R. C. 

 McGregor, of the Philippine bureau of science, on Calayan Island, 

 one of the Babuyan group. 



The type (Cat. No. 205215, U.S.N.AI.) has 7 whorls and measures- 

 length 18 mm., diameter 19.6 mm.; aperture, length 11.8 mm., 

 diameter 11 mm. 



