THE NAUTILUS. 33 



Okinoerabushima, Osunii. Type no. 87335 A. N. S. P., from no. 

 1250 of Mr. Hirase's collection. 



The most depressed member known of the mercatoria group, and 

 requiring comparison with no other species. It has been found only 

 as a fossil, probably quaternary, and is the first land snail to be de- 

 scribed from the island. 



Eulota (^Aegista) tokunoshimana n. sp. 



Shell openly umbilicate, depressed with convexly conic spire, thin 

 but rather strong, reddish brown, the spire a little paler. Surface 

 dull, densely covered witii minute short scales or the papilla left 

 after the loss of scales. Whorls 7 to 7^, convex, very closely coiled, 

 the last descending a trifle in front, barely perceptibly angular in 

 front, elsewhere rounded, especially beneath. The aperture is rather 

 small, oI)lique, lunate, the narrowly expanded and slightly thickened 

 lip forming about three-fourths of a circle. 



Alt. 14.3, diam. 21, width of umbilicus 5 mm. 



Alt. 14, diam. 21.5, width of umbilicus 4 mm. 



Alt. 13.5, diam. 18.5, width of umbilicus, 4 mm. 



Tokunoshima, Osumi. Type no. 87334 A. N. S. P., from no. 

 1210 of Mr. Hirase's coll. 



A peculiar, compact and liigh-spired Aegisiu, with more the 

 sculpture of Plectotropis. 



Eulota {Plectotropis) pressa n. sp. 



Shell openly umbilicate, depressed, low-conic above, convex be- 

 low the ratlier acute peripheral carina; thin, dull brown. Surface 

 somewhat shining, finely striate, the strife irregular, but not scaly. 

 Whorls 5^, the last hardly descending in front. Aperture small, 

 oblique, the upper margin straightened, hardly expanded, lower 

 margin narrowly expanded, slightly reflexed, thin, and deeply arcu- 

 ate. Alt. 6.2, diam. 10.8, width of umbilicus 3.2 mm. 

 ■ Okinoshima, Tosa. Types no. 87336 A. X. S. P.. from no. 1181 

 of Mr. Hirase's collection. 



A small, plain species, with the spire higher than in E. rntonsa, 

 and the last whorl narrower. 



Eulota { Aegista) friedeliana var. vestila n. var. 



Differs from E. friedeliana by being very densely covered with 

 minute short scales. Alt. 0, diam. 16.5, width of umbilicus 5 mm. 



