THE NAUTILUS. 141 



weathered specimens are occasionally found in Clarendon, and St. 

 Catherine. Prof. C. B. Adams, who was unacquainted with bain- 

 bridgei of Pfeiffer, mistook the nearly allied Manchester species for 

 it, and coming across the alhino form, described it as the var. pretiosa 

 of bainbridgei ; consequently, his varietal name must be used to 

 designate this species, which is usually of a rich chocolate color. 



10. Pleurodoate spengleriana (No. 10 in map) is the St. Elizabeth 

 species, and is readily distinguished by its smooth surface. 



Before closing these notes I must acknowledge the kindly aid my 

 Master in Conchology, Mr. Henry Vendryes, has always so gener- 

 ously given me. Had it not been for his help I should never have 

 been able to send these communications. I must also acknowledge 

 the aid my friend, Mr. Geo. Nutt, has given in helping me to map 

 out most of the groups of Jamaican land shells. 



NOTICES OF NEW LAND SHELLS OF THE JAPANESE EMPIKE. 



BY H. A. P1LSBKY. 



Mandarina hirasei n. sp. Shell umbilicate, depressed-globose, 

 solid and strong, smoothish, slightly marked with growth-striae, and 

 under a lens seen to be densely striate spirally. Spire lowconoidal, 

 the apex obtuse. Whorls 4^, the last rounded peripherally and 

 beneath, slightly descending in front. Aperture quite oblique, 

 rounded-truncate ; peristome thick, expanded, narrowly reflexed 

 below, a little dilated at the columellar insertion, partially covering 

 the umbilicus. Alt. 13, diam. 21 mm. 



Chichijima, Ogasawara (Mr. Y. Hirase, No. 860). 



Quite unlike any of the known species. The specimens are dead, 

 without cuticle, and white. Like M. ruschenbergeriana and M. pal- 

 losiana, the species is probably extinct. 



Hirasea diplompludns n. sp. Shell very small, shaped like an 

 Ammonite or like Diplomphalus, the base perforate, spire rather 

 narrow and deeply sunken, periphery broadly rounded. Whorls 4^, 

 the last sub-angular above. Aperture vertical, narrowly crescentic, 

 the outer lip thickened with a white rib within except near the upper 

 termination. Alt. 3.2, diam. nearly 2 mm. 



Chichijima, Ogasawara (Mr. Hirase, No. 863). 



Hirasea goniobasis n. sp. Shell sub-perforate, dull brown, acutely 



