626 PROCEEDINGS OF THE ACADEMY OF [Scpt. r 



In each of the three lots examined a small form occurs with the 

 larger shells. Three of these smaller specimens measure: 



Alt. 7.5, diam. 14.4 mm. ; whorls 6. 



Alt. 9, diam. 15.5 mm.; whorls 6f (fossil). 



Alt. 8, diam. 14.5 mm. ; whorls 6. 



The color also in the small form is concentrated, being of decidedly 

 darker shade than in the larger shells. 



The names E. omma and E. oculus allude to the appearance 

 of the basal aspect of the shell a dark pupil-like umbilicus surrounded 

 by a brownish band, like the iris of the eye. 

 Eulota (Euhadra) okinoerabuensis n. sp. 



Shell very narrowly umbilicate, moderately depressed with conoidal 

 spire. The specimens are fossil, white with a narrow reddish band 

 above the periphery. The surface in the best preserved specimens 

 is glossy, sculptured with weak wrinkles along growth-lines, and very 

 fine, faint, close spiral striae. Whorls about 5}, slowly increasing, 

 convex, the last rounded below and at the periphery, very slightly 

 deflexed in front. The aperture is slightly oblique, lunate, the lip thin,, 

 narrowly expanded, slightly reflexed, dilated at the axis, half covering 

 the small umbilicus. 



Alt. 21, diam. 27.5 mm. 



Alt. 19.5, diam. 26 mm. 



Okinoerabu-shima, Osumi, in sand on the seashore. Types No. 

 87,542, A. N. S. P., from No. 1,252 of Mr. Hirase's collection. 



This is a small, elevated member of the group of E. mercatoria, as 

 yet only found fossil. The very small umbilicus and elevated spire 

 give it something the appearance of the large form of E. submandarina 

 of Yakushima. 



Eulota callizona montivaga n. subsp. 



This race resembles E. c. minor Gude in general appearance, but it 

 is more conic, less globose. The aperture consequently is lower and 

 wider. 



The color is (1) either yellow, with a light reddish-brown peripheral! 

 belt, a darker streak at the back of the lip, and some tinting with the 

 same color around the umbilicus, or (2) greenish-yellow, with three 

 blackish-brown bands, the first one very narrow, bordering the suture, 

 the second wide, at the periphery, and the third is a circular area cover- 

 ing the greater part of the base. The lip is purplish in all specimens 

 seen. 



Alt. 23, diam. 28.5 mm. 



Alt. 19, diam. 24 mm. 



