708 PROCEEDINGS OF THE ACADEMY OF [Oct., 



HELIOID^. 

 Eulota mercatoria iejimana n. subsp. 



Shell narrowly umbilicate, solid, compact, rich chestnut, paler near 

 the suture and umbilicus, and with a chocolate-brown band at the peri- 

 phery, with a whitish band above and below it. Surface somewhat 

 shining, rib striate above, nearly smooth below. Spire convexly-conoid. 

 Whorls about 6, convex, very slowly widening, the last rounded peri- 

 pherally, very slightly descending in front; base convex. Aperture 

 oblique, lunate. Peristome flesh-tinted or whitish, well reflexed, 

 thickened within, arcuate throughout; in a basal view the basal mar- 

 gin is slightly arched forward. 



Alt. 22, diam. 30 mm. 



Alt. 20, diam. 29.5 mm. 



lejima, Ryukyu. Types No. 89,902, A. N. S. Phila., from No. 1,352 

 of Mr. Hirase's collection. 



This peculiar little form differs from Eulota mercatoria by its more 

 globose shape, more closely coiled whorls, wider peristome, etc. It re- 

 sembles also E. caliginosa, but the base is more convex and the basal 

 lip is arcuate. It might be considered a distinct species. 



Eulota connivens iheyaensis n. subsp. 



Shell differing from E. c. phasogramma by its strong thread-like rib- 

 striae both above and below. 



Alt. 16, diam. 22 mm. 



Alt. 15, diam. 21 mm. 



Iheya-jima, Ryukyu. Types No. 89,873, A. N. S. Phila., from No. 

 1,353 of Mr. Hirase's collection. 



Eulota (Plectotropis) tokunovaga n. sp. 



Shell openly umbilicate, shaped much like E. mackensii, being low- 

 conic above, convex beneath; thin and light, almost fragile; chestnut 

 colored or sometimes pale dull green. Surface lusterless, irregularly 

 marked with growth lines, and where unrubbed, bearing sparse linear 

 ftdnate cuticular threads; peripheral fringe rather short and sparse 

 in young shells, generally absent in adults. Under the dull outer coat 

 the surface is closely striate spirally, both above and below. Whorls 

 6^ to 6f, slightly convex, the last not descending in front, strongly 

 carinate peripherally, convex beneath. Aperture oblique, trape- 

 zoidal. Peristome thin, narrowly expanded, the basal and columellar 

 margins narrowly reflexed. Parietal callus very thin. 

 Alt. 15, diam. 29 mm. 

 Alt. 14.7, diam. 28 mm. 



