332 



BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



rufogaster mcvnilana, but differs from it in being broader and in 

 having the whorls more inflated. 



/Specimens examined. — The type, U.S.N.M. No. 255859, was col- 

 lected by me at Montalban, Rizal Province, Luzon. It has 6.1 

 whorls, and measures: Height, 75.2 mm; greater diameter, 52.3 

 mm. Another specimen, U.S.N.M. No. 256084, also collected by me 

 at the type locality, has 6.1 whorls, and measures: Height, 69.3 mm; 

 greater diameter, 53 mm. Two specimens from the type locality 

 collected by LeRoy Topping also have each 6.1 whorls, and measure: 

 Height, 71.8 and 70.8 mm; greater diameter, 53.2 and 52.8 mm, 

 respectively. In addition to this there are a number of shells present 

 that are not quite mature. 



COCHLOSTYLA RUFOGASTER ANTIPOLANA, new subspecies 



Plate 85, Figure 2 



1891. Cocldostyla rufogaster Hidalgo, Obras Malacologicas, pp. 372-374, in 

 part. 



Shell small, broadly ovate, obscurely angulated at the periphery. 

 Peripheral light band narrow, bordered posteriorly by a dark zone. 

 The light zone is scarcely indicated in decorticated specimens. In- 

 terior bluish pearly; peristome chocolate-brown; pillar axially mot- 

 tled with brown. 



Specimens examined. — The type, U.S.N.M. No. 240246, was col- 

 lected by LeRoy Topping at Antipolo, Rizal Province, Luzon. It 

 has 6.1 whorls, and measures: Height, 58.7 mm; greater diameter, 

 48.3 mm. U.S.N.M. No. 255985 contains two specimens collected by 

 myself near the falls at Antipolo. These measure: 



In its small size this race approaches Cochlostyla rufogaster 

 nwnozona Pfeiffer. It is, however, more broadly ovate and has the 

 periphery much more strongly angulated. 



COCHLOSTYLA RUFOGASTER MONOZONA (Pfeiffer) 



Plate 84, Figures 1. 2 



1846. Bulimus monozonus Pfeiffer, Monograpliia lieliceorum viventium, vol. 



2, p. 533. 

 1848. Bulimus monozonus Pfeiffer, Proc. Zool. Soc. London, p. 110. 



