34 PROCEEDINGS OF THE ACADEMY OF [Jan., 



The sculpture is of closely beaded spiral cords, of \'\'hich there are 

 five on the penultimate and next earlier whorls, the upper three small, 

 the lower two much larger and wider spaced. On the last whorl there 

 is a group of three large cords in the peripheral region, three smaller 

 ones above them; the intervals being densely obliquety striate, with 

 no trace of spiral strise or secondary threads. The base, which is slightly 

 convex, has eight subequal spirals, which are smaller and less deepl}^ 

 cut into beads than those above them. The intervals throughout are 

 about equal in width to the adjacent spiral cords. 



The aperture is very oblique, sulcate within, with 8 to 10 lirce, the 

 bevelled edge fluted. The oblique columella has a low nodule above 

 and a strong tooth at the base. Its edge is flanged outwardly. The 

 rather narrow umbilicus is guarded by about four teeth. 



Alt. 5.3, diam. 5.8 mm. 



Alt. 4.5, diam, 4.5 mm. 



Riukiu. Types No. 85,980, A. N. S. P., from No. 1,451 of Mr. 

 Hirase's collection. 



This form is closely related to C. hizenensis Piis. from Hirado, Hizen, 

 from which it differs chiefly in the smaller size, different coloration 

 and the splitting of the subsutural bead-cord into two. 



Clanculus gemmulifer pallidus Pils. PI. VI, fig. 63. 

 Nautilus, XVII, 71 (October, 1903). 



Kashiwajima, Tosa. 



Gibbula vittata Pils. PI. VI, fig. 59. 



Nautilus, XVII, 69 (October, 1903). 

 Riukiu Island. 



Gibbula incarnata Pils. PI. VI, fig. 62. 

 Nautilus, XVII, 70. 

 Kumihama, Tango. 



Monilea (Rossiteria) nucleolus Pils. PI. VI, figs. 58, 5Sa. 



Nautilus, XVII, 70. 

 Euchelus liscbkei n. sp. PI. VI, fig. 55. 



The shell is globose with conic spire and narrow umbilicus, moder- 

 ately solid, and of a uniform purple-brown color. There are about 5 

 convex whorls parted by a narrow channelled suture. 



The sculpture is of closely beaded spiral cords parted b}^ intervals 

 of 'about their own width. On the last whorl there are 11 of these 

 primary cords, with, in full-grown shells, a small secondary cord in 

 each interval. The earliest sculptured whorl has three large cords, 

 this number being soon doubled by intercalation of new ones. The 

 intervals are more or less strongly latticed across by threads continuous 



