ART. 5 LUZON" LAND SHELLS BAETSCH 9 



This subspecies diverges more than any other in the direction of 

 elevation from the type that I have seen, being much more elevated 

 than typical Gochlostyla subinirdbilis submirabilis. It goes as far 

 in this extreme as those previously referred to tend toward 

 depression. 



Its broadly ovoid shape and large size differentiate from all the 

 other subspecies. 



COCHLOSTYLA SUBMIRABILIS DARAGANA, new subspecies 



Plate 3, Figures 9-12 



Shell helicoid, thin. Early whorls pale straw colored, the later 

 of a more greenish yellow tinge, base still darker. Umbilical area 

 pale brown, peripheral band bright chestnut brown, the narrow zone 

 at the summit and the spiral band between this and the periphery a 

 little paler than the peripheral zone. Peristome broadly expanded 

 and somewhat protracted at the junction of the basal and outer lip, 

 white. Inside of aperture bluish-white excepting the areas where 

 the dark bands described above show through. The periostracum is 

 thin and shows many fine, more or less wavy, spiral hydrophanous 

 lines on spire and base. 



The type, Cat. No. 312949, U.S.N.M., comes from the Quadras 

 collection, where it bore the name Helicostyla Tnirahilis. It was 

 collected at Daragua, Albany Province, Luzon. It has 4.5 whorls 

 and measures — height, 33.0 mm. ; greater diameter, 33.3 mm. ; lesser 

 diameter, 26.6 mm. 



This subspecies resembles most nearly Gochlostyla sub7mrahilis 

 subuiirahilis from which it differs by its much thinner shell, much 

 more depressed spire, and longer aperture. 



GOCHLOSTYLA SUBMIRABILIS SUBMIRABILIS Mollendorff 



Plate 4, Figures 1-4 



1891. Coclilostyla duhiosa Hidalgo, Obras. Malac, pp. 313-5, pi. 47, fig. 4 



1897. Gochlostyla duhiosa submirabilis Mollendorff, Nachr. Deut. Malak. Ges., 



vol. 29, p. 128. 



1898. Cochlostijla duMosa submirabilis Mollendorff, Abhand. Naturf. Ges. 



Gorlitz, vol. 22, p. 113. 

 1905. Gochlostyla dubiosa submirabilis Mollendorff, Kobelt and Winter, Semper. 

 Reis. Arch. Philip., vol. 10, pt. 1, p. 151, pi. 30, fig. 3. 



Shell ovate, rather thin. Early whorls flesh colored or pale brown. 

 The succeeding turns straw-colored, deepening to brownish straw 

 color oh the last whorl. Umbilical area with a narrow brown zone. 

 Periphery marked by a brown band; there is also a narrow zone 

 of brown at the summit and another halfway between this and the 

 2608—30 2 



