142 PROCEEDINGS OF THE NATIONAL MUSEUM voi.. x.xxii. 



VIVIPARA CUMINGI (Hanley) Reeve. 



Plate X, Fig. 7. 



Paludina cmningi (Hanley) Reeve, Conch. Icon., XIV, 1863, no. 11, figs. 

 11, 11a. 



Shell subglobose, of light olive green color. The early whorls are 

 but little elevated, well rounded, marked by lines of growth and a few 

 exceedingly tine interrupted spiral lirations. From the third whorl 

 on the turns are decidedly inflated and strongly roundly shouldered at 

 the summits, the shoulder being almost tabulated. These whorls are 

 marked by faint lines of growth and exceedingly closely spaced, flne, 

 wavy lirations. In additions to this sculpture a number of moderately 

 strong, low, oblique, raised ridges make their appearance on the last 

 two turns, which, in connection with the above-mentioned sculpture, 

 give these whorls a weakly malleated aspect. Sutures strongly 

 impressed. Periphery of the last whorl rounded. Base well rounded, 

 narrowly unbilicated, marked by the lines of growth and obsolete 

 spiral lirations as on the spire. Aperture moderately large, oval, 

 bluish white, with a narrow dark-colored border; outer lip thin; colu- 

 mella slender, concave, somewhat reflected over the umbilicus; parie- 

 tal wall covered with a thick, bluish white, dark-edged callus, which 

 gives the peristome a complete aspejct. 



The specimen described and figured, Cat. no. 105658, was donated 

 by C. M. Wheatley and comes from Luzon, Philippine Islands. It has 

 five and one-half whorls and measures: Altitude, IT.I mm.; greater 

 diameter, 14.8 mm.; lesser diameter, 12.6 mm., aperture, altitude 

 (from the posterior angle to the middle of the base), 10.2 mm. ; diam- 

 eter (at right angles to the last from the middle of the outer lip), 7.8 

 mm. Another specimen. Cat. No. 98070, U.S.N.M., was collected at 

 Manila, Luzon, Philippine Islands, by W. W. Walpole. 



VIVIPARA MEARNSI, new species. 

 Plate X, fig. G. 



Shell thin, polished, conic, strongly keeled at periphery, greenish- 

 yellow, with irregularly disposed, narrow, dark, longitudinal bands, 

 which appear to mark resting stages. The entire shell on the spire 

 and base is marked by fine incremental lines and very fine, closely 

 spaced, spiral striations, which lend the surface a finely reticulated 

 aspect when viewed under high magnification. (Nuclear whorls decol- 

 lated.) Succeeding turns well but not evenly rounded, the posterior 

 half between the summit and the peripher}^ being decidedly more con- 

 vex than the anterior. Periphery of the whorls bearing a strong 

 narrow compressed keel, which is apparent above the suture in all 

 the volutions. On the earlier ones it is appressed (luite closely to the 

 summit of the succeeding turn, while in the last tsvo volutions the 



