ART. 5 LUZON LAND SHELLS BARTSCH 7 



a dark umbilical area. The hydrophanous bands are mostly worn 

 away in the type, they are of varying width, the broadest being at 

 the summit. 



The type, Cat. No. 311075, U.S.N.M., has almost 5 whorls and 

 measures — height, 29.2 mm.; greater diameter, 31.7 mm.; lesser 

 diameter, 26.0 mm. 



The type comes from the mountains near Los Banos, Laguna 

 Province, Luzon. 



In size this subspecies resembles Helix submirdbilis lucbana, but it 

 is of much heavier texture and lacks the spiral color bands. It is 

 also more elevated. 



HELICOSTYLA SUBMIRABILIS MAJAYJAYANA, new subspecies 



Plate 2, Figures 5-8 



Shell subglobose of strong texture. Whorl's quite strongly round- 

 ed. The ground color varies from straw color to pale brown, the 

 earlier whorls usually being darker than the rest. The umbilical 

 area is bordered by a dark zone and a broad dark band is present at 

 the summit of the whorls. The entire surface of spire and base is 

 marked by hydrophanous spiral bands a's shown in our figures. 



The type and four additional specimens were collected by Fran- 

 cisco Rivera at Majayjay, Laguna Province, Luzon. I also collected 

 it above the falls at Botocan, not far from Majaj^jay. 



The type. Cat. No. 312943, U.S.N.M., has 5.1 whorls and measures- 

 height, 35.7 mm.; greater diameter, 36.4 mm.; lesser diameter, 29.6 

 mm. 



The largest specimen has 5.0 whorls and measures — 35.1 mm. ; 

 greater diameter, 41.2 mm. ; le'sser diameter, 32.2 mm. The smallest 

 specimen has 5 whorls and measures — height, 35 mm. ; greater diam- 

 eter, 34.7 mm. ; lesser diameter, 28.8 mm. 



Tliis is the largest of the globular races. It is brilliantly colored. 

 It most nearly resembles Cochlostyla sub7ni7'abilis tayabasana^ from 

 which it i's easily distinguished by its much larger size. 



Paratypes are in the collection of the Philippine Bureau of Science. 



COCHLOSTYLA SUBMIRABILIS LUCBANA, new subspecies 



Plate 2, Figures 9-12 



Shell small, subglobular, rather thin, early whorls light or dark, 

 ground color of the later whorls olivaceous straw colored. There is 

 a dark umbilical area and a dark band at the suture. Peristome 

 white. Interior of aperture bluish white. The hydrophanous spiral 

 zones are of very variable width, the broadest being at the summit. 



