THE CONCHOLOGICAL MAGAZINE J I 



Latiaxis spinosus n. sp. pi. xlii, figs. 253, 254. 



Shell fusiform, narrowly umbilicated, whitish with longi- 

 tudinal yellowish light brown stripes ; spire long turriculated. 

 Whorls 8, the first rounded, forming a smooth protoconch, 

 the rest angular in the middle convexly sloping above and 

 below, with seven or more foliated spines at the angle, the 

 spines curved upward and composed of doubled laminje, opened 

 at the front irregulary dentated at the behind, and not 

 continuous at the base. Suture rather deep with a series 

 of shorter spines. The last angular at the periphery and 

 little below, with S foliated spines at each angle, the lower 

 shorter with more processes. The umbilicus encircled by 

 about five short curved spines. The aperture rather smal 1 

 subcircular ; lip thin, sharp, continuous, the columellar lip 

 broadly expanded, the outer lip with two notches correspond- 

 ing to the canals of the spines. Anterior canal moderate 

 and recurved. Sculpture of distinct growth-lines and irregular 

 spiral cords, coarser at the base. 



Length (including the anterior canal) 25, diam. 13 mm., 

 length of aperture 8 mm., length of the longest peripheral spine 

 8 mm. 



Kashiwa-jima, Tosa ; types in my collection. 

 Latiaxis tosanus n. sp. pi. xlii, figs. 255, 256. 



Shell dull yellowish white, resembles to L. japonica Dkr., 

 but remarkably smaller, with shorter spire and narrower 

 shoulder appendages, tinted with light rose and not continuous 

 at its base. Sculpture of spiral ribs with little spines (in L. 

 japonica there are no spine on the dentated spiral lamellae), on 

 the last whorl 4 or 5 ribs above and 6 below the periphery 

 sometimes with smaller inter ribs, and always with fine striae. 

 Whorls 7 or 8, protoconch lost ; aperture semicircular, lip thin, 

 the columellar lip free, inside of the outer lip with 11 revolving 

 plica:. 



Length 29, diam. 17.5 mm., diam. including the peripheral 

 spines 25 mm. 



Kashiwa-jima, Tosa ; types in my collection. 



