10 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Mangilia kamakurana n. sp. PI. II, figs. 11, lla. 



Shell very small, white with a brown spot in the middle of the lip- 

 varix, the spire terraced, lower half conic. Sculpture of slightly 

 curved obliquely longitudinal ribs, 11 on the last whorl, the last one, 

 behind the lip, much larger. These are crossed by spaced spiral 

 threads, with smaller threads between them, the intervals still more 

 finely striate spirally. Whorls 5 (the embryonic ones broken off), 

 strongly angular near the middle, flattened and sloping above the 

 angle, contracting below it; the last whorl similarly angular, convex 

 below the angle, contracted near the base. Aperture oblong, the 

 columellar margin concave above the middle. Outer lip thick, with 

 a moderately deep rounded sinus above; smooth within. 



Length 4.7, diam. 2 mm. 



Kamakura, Sagami. Type No. 70,940, A. N. S. P. No. 71,025, from 

 Japan, without exact locality, is the same species. 



Mangilia cinnamomea peraffinis n. subsp. PI. II, figs. 12, 12a. 



Shell stoutly fusiform, glossy, purple-brown, becoming flesh-colored 

 at the anterior end, with a broad white band at the periphery, and 

 three indistinct, equally spaced whitish bands on the sloping surface 

 below it. Sculpture of longitudinal ribs about half as wide as the 

 concave intervals and 9 in number on the last whorl. Whorls 7, 

 those of the spire subangular in the middle, the first two whorls having 

 delicate widely spaced riblets. The last whorl is widest above but 

 not angular, and tapers regularly downward. The aperture is rather 

 narrow, blunt at both ends. The outer lip is slightly retracted above 

 and below, and has about 9 small teeth within, those in the middle 

 rather indistinct. The columella has about 8 slightly larger short 

 transverse wrinkles. 



Length 7, diam. 3 mm. 



Hirado, Hizen. Types No. 85,952, A. N. S. P., from No. 1,519 of 

 Mr. Hirase's collection. 



This pretty Cythara corresponds fairly well with M. cinnamomea 

 Hinds 1 except in color. It differs from M. planilabrum Reeve 2 in having 

 no angular projection of the lip above. 



Mangilia (Cythara) hirasei n. sp. PI. II, figs. 13, 13a. 



Shell irregularly biconic, resembling M. decussata Pse. and delacour- 

 iana Cr. in shape ; thick and solid ; whitish, indistinctly marked with 

 about 4 yellowish spots on the front slope of each rib, and correspond- 

 ing brown spots on the lip-varix, and with a band composed of 4 to 6 



1 Zool Voy. "Sulphur," PI. 9, fig. 1. 



2 Conch. Icon., Mangelia, PI. 6. fig. 43. 



