106 THE NAUTILUS. 



Seta, Omi. Types no. 85784 A. N. S. P., from no. 1113 of Mr. 

 Hirase's collection. 



This small, pea-like species differ from E. commoda (A. Ad.) by 

 its much less convex whorls (Endo a pea). 



Trishoplita mesogonia var. minima n. var. 



This race differs from T. mesogonia in being much smaller, with 

 the peripheral angle decidedly weaker. It is thin, pale brown or 

 brownish corneous, with a tendency to be paler below the suture, 

 and frequently with some whitish spots there; whorls 5^. 



Alt. 6.5, diam. 8.5 mm. 



Alt. 6, diam. 8 mm. 



Tokushima, Awa (Shikoku). Types no. 84713 A. N. S. P., 

 from no. 832 of Mr. Hirase's collection. 



Macrochlamys izushichitojimana n. sp. 



Shell minutely perforate, depressed, with low conoid spire and a 

 distinct peripheral angle in front, the last whorl becoming rounded 

 on the latter part; very thin, brown, somewhat translucent. Sur 

 face somewhat glossy, sculptured with irregular, low, coarse wrinkles 

 along the growth-lines above, smoother and more glossy beneath. 

 Whorls 4|, slowly and regularly increasing. Aperture lunate, the 

 lip simple and acute, with a small triangular dilation at the axial in- 

 sertion. 



Alt. 3.8, diam. 6 mm. 



Miyakejima, Izu. Types no. 85944 A. N. S. P., from no. 1058a 

 of Mr. Hirase's collection. Also occurs on Niijima, Hirase's no. 

 1058, the specimens being slightly smaller with 4^ whorls, and a 

 little paler. 



This species is related to M. semisericata, but it is larger with 

 more elevated spire, rougher surface and a distinct peripheral angle. 



Macrochlamys decens n. sp. 



Shell minutely perforate, depressed, biconvex, the spire low con- 

 oidal, the periphery obtusely angular, and the base convex; thin, 

 amber-brown, somewhat translucent. Surface somewhat glossy, with 

 slight, irregular sculpture of fine growth-wrinkles. Whorls fully 6, 

 convex, very slowly and regularly increasing. Aperture lunate, the 

 peristome simple and acute, with a small triangular dilation at the 

 axial insertion, the columella noticeably thickened within. Alt. 3.3, 

 diam. 5.3 mm. 



