8 PKOCEEDIMGS OF THE KATIOXAL MUSEUM vol. 78 



The type, Cat. No. 47901, U.S.N.M., has 4.5 whorls and measures- 

 height, 28.0 mm.; greater diameter, 30.3 mm.; les'ser diameter, 24.5 

 mm. It was collected at Lucban, Tayabas Province, Luzon. 



In size this race resembles Cochlostyla s'll'bmirdbilis hanosana. The 

 spire here, however, is less elevated, the whorls more inflated, and the 

 shell of much thinner texture. 



COCHLOSTYLA SUBMIRABILIS TAYABASANA, new subspecies 



Plate 3, Figures 1-A 



Shell subglobose, quite thin, whorls inflated, well rounded. Early 

 whorls brown, straw, or flesh colored, the succeeding turns may be 

 straw colored, light or darker brown. The umbilical area is dark 

 chestnut brown and a spiral band of the same color marks the 

 summit. Peristome white. Interior of aperture bluish white. 

 The hydrophanous spiral bands are of varying width, the widest 

 being at the summit, as may be seen by our figures. 



The type, Cat. No. 195436, U.S.N.M., has almost 5 whorls and 

 m.easures — height, 36.0 mm.; greater diameter, 35.7 mm.; lesser 

 diameter, 28.4 mm. It and three additional specimens collected by 

 Von Mollendorff at Tayabas, Tayabas Province, Luzon, were dis- 

 tributed by him under the name of Cochlostyla dubiosa Pfeiffer. 



The subspecies most nearly resembles Cochlostyla submirahilis 

 onajayjayana., from which it differs by its smaller size, less elevated 

 spire, and much thinner shell. 



COCHLOSTYLA SUBMIKABILIS ANTIMONANA, new subspecies 



Plate 3, Figures 5-8 



Shell broadly ovate, rather heavy. Nuclear whorls pale brown, the 

 succeding whorls flesh colored, the last two straw-colored, deepening 

 to pale orange near the aperture. The umbilical area has a narrow 

 dark zone. A broad peripheral spiral band, a narrow one at the 

 summit and one of intermediate width halfway between these are 

 present. The peristome, which is rather obliquely protracted and 

 flaring, is white and thick. The last turn shows numerous fine 

 spiral hydrophanous lines. Where the thin periostracum has been 

 removed the shell shows white. 



The type. Cat. No. 392948, U.S.N.M., comes from the Quadras 

 collection and was obtained at Antimonan, Tayabas Province, Luzon. 

 It has 5.1 whorls and measures — height, 47.8 mm. ; greater diameter, 

 40.2 mm.; lesser diameter, 32.7 mm. 



The name bestowed upon it by Quadras was Helicostyla dubiosa 

 suhniii^abilis. 



