124 TROCHOMORPHA. 



distinctly conical. Whorls 5, slightly convex, slowly increasing, 

 the suture moderately impressed, submargined ; rather regularly 

 and densely striated, hardly sculptured spirally ; the last whorl is 

 angulate-convex below, roundly-subangulated at the umbilicus, 

 yellow-streaked at the aperture, below. Aperture little oblique, 

 irregularly trapezoidal; peristome simple, arcuate, upper margin 

 lightly curved, lower margin deeply curved. 



Alt. 4}-4, diam. 12* mill.; apert., alt, 3J, width 51 mill. 

 (Mlldf.) 



West coast of Zebu. 



T. (Videna) splendidula MLLDFF., Landschn. Cebu, p. 214, t. 8, 

 f. 2. 



The striation is stronger than in T. splendens but not so strong as 

 in costellifera. The yellow streak just behind the lip, and parallel 

 with it, is peculiar. Exact locality not known, but probably the 

 village Balamban. 



Hidalgo (Obras Mai. i, p. 115) considers this a form of T. sj)len- 

 dens Semp., but it seems to be sufficiently distinct. 



T. NEGLECTA Pilsbry. PI. 20, figs. 14, 15, 16. 



Shell openly umbilicated, the umbilicus of a deep funnel shape, its 

 width contained 5 or 5 times in the diameter of the base ; depressed, 

 lens-shaped, acutely keeled, thin but rather strong, shining, light 

 chestnut colored the apex pale corneous. The spire is conoidal ; 

 whorls 6 or 6 1, slowly increasing, slightly convex, separated by a 

 suture distinctly dark-margined above, scarcely impressed ; the last 

 whorl acutely keeled, a trifle concave above and below the keel ; the 

 base convex, roundly angled around the umbilicus. Upper surface 

 irregularly and coarsely plicate-striate ; lower surface more shining, 

 smoother, lightly striated ; no spiral strice either above or below. 

 Aperture rhomboidal, flesh-colored within ; upper lip arched for- 

 ward, thin ; basal lip gently arcuate, somewhat thickened ; col- 

 umellar lip strongly arcuate. 



Alt. 8, greater diam. 24, lesser 20i mill. 



Philippines. 



This large species is distinguished by the strong striation of its 

 upper surface, the total lack of spiral stride, and the funnel shaped 

 or conical umbilicus. It differs from T. sibuyanica in being a 

 stronger, higher shell, with conical spire, stronger sculpture, nar- 

 rower last whorl and in lacking spiral striae. It differs from T. 



