1904.] NATURAL SCIENCES OF PHILADELPHIA. 631 



and textilis differ from iviegmanniana in minute sculpture and in the 

 somewhat triangular shape of the mouth — characters allying them to 

 selasia of Ivii. It is quite impossible at present to fix definitely the 

 status of many of these forms, which often have affinities with several 

 very dissimilar species. In the series of selasia, textilis, zonata and 

 wiegynanniana the umbilicus is much larger than in G. japonica, G. 

 ferruginea and the forms grouping around them. 



STREPTAXID^. 

 Ennea iwakawa miyakojimana n. subsp. 



This race resembles E. i. oshimana, but the parietal lamella is longer 

 and more slender and approaches nearer to the upper palatal tubercle. 

 The striation is finer and closer. Whorls S. 



Length 4, diam. 1.7 mm. 



Miyakojima, Riukiu. Types No. 87,637, A. N. S. P., from No. 1,300 

 of Mr. Hirase's collection. 



VERTIGINID^. 

 Vertigo hirasei glans n. subsp. 



Shell shorter than V. hirasei, with the suture less impressed. Teeth 

 practically typical. 



Okinoerabushima, Osumi. Types No. 87,689, A. N. S. P., from No. 

 1,261 of Mr, Hirase's collection. 



Vertigo hirasei okinoerabuensis n. subsp. 



Shell larger than V. hirasei, with 4^ whorls. There is an upper 

 palatal plica developed in addition to the teeth present in V. hirasei. 

 Color pale brownish-corneous, translucent. Length 1.7 mm. 



Okinoerabushima, Osumi. Types No. 87,690, A. N. S. P., from No. 

 1,261a of Mr. Hirase's collection. 

 Pupa insulivaga n. sp. 



Shell very small, cylindrical, obtuse at the ends, ashy-brownish, thin 

 and smooth. Whorls 6|-, convex, separated by an impressed suture. 

 Aperture truncate-ovate, with an obtuse, wide, deeply seated colu- 

 mellar prominence, and a short lower palatal fold in the throat. The 

 peristome is thin, just perceptibly expanded at the edge; right margin 

 straightened in the middle, arcuate above. 



Length 1,7, diam, .8 mm. 



Yoronjima, Osumi, Types No, 87,624, A. N. S. P., from No. 1,264 

 of Mr. Hirase's collection. 



This minute, cylindrical species is very unlike any hitherto known 

 from the region, but closely resembles P. minutissima Hartm. of central 



