AHT. 5 



LUZON LAND SHELLS BARTSCH 17 



genus Cochlostyla in 1890 for Cochlostyla intorta crassa, which makes 

 it necessary to rechristen it. I have selected the subspecific name 

 hoacana because most of the material in our collection has come 

 from the vicinity of Boac. 



This subspecie's is characterized by having the dark bands exceed- 

 ingly broad, their total surface sometimes equals or probably exceeds 

 that of the light areas. As a rule, four zones are present, that is the 

 umbilical, peripheral, intermediate, and the band at the summit. 

 There is only one specimen in our collection in which this phase of 

 coloration does not obtain. In this a narrow zone at the umbilicus and 

 a very narrow line at the 'summit are dark colored. Even here, how- 

 ever, the other two bands are indicated as mere shadows. The peri- 

 ostracum varies considerably in tint, ranging from lemon yellow to 

 pale brownish-orange. Peristome white. Interior of aperture blu- 

 ish-white excepting the areas occupied bj^^ the dark spiral bands. 



The specimen figured has 4.9 whorls and measures — height, 33.6 

 mm. ; greater diameter, 32.8 mm. ; lesser diameter, 27.0 mm. The 

 largest 'specimen before me has 5.1 whorls and measures — height, 

 35.7 mm. ; greater diameter, 34.8 mm. ; lesser diameter, 30.1 mm. The 

 smallest specimen has 4.6 whorls and measures — height, 27.0 mm. : 

 greater diameter, 29.7 mm. ; lesser diameter, 23.0 mm. 



The extremely dark coloration distinguishes this race from all the 

 others. 



OBBA GALUNULA MAJAYJAYANA, new subspecies 

 Plate 4, Figures 11-13 



Shell similar to Ohha galUnula convexospira Mollendorff, differing 

 from this by being less convex, that is, more depressed, by having the 

 dorsal dark spiral band a little more median and the ventral dark 

 spiral band broader and a little more median. The open umbilicus 

 is also a trifle wider in our shells. 



The type. Cat. No. 322962, U.S.N.M., and two paratypes in the 

 collection of the Philippine Bureau of Science were collected by 

 Dr. C. F. Baker. The type has 4.8 whorls and measures — height, 

 10.0 mm.; greater diameter, 26.9 mm.; lesser diameter, 22.0 mm. 

 The paratypes have 4.9 and 4.6 whorls, respectively, and measure — 

 height, 11.3 and 10.1 mm.; greater diameter, 27.3 and 27.4 mm.; 

 lesser diameter, 22.4 and 23.3 mm., respectively. 



LEPTOPOMA McGREGORI, new species 



Plate 9, Figures 4-6 



Shell small, helicoid, thin, yellowish horn colored. In the type 

 a rather broad chestnut-brown band is present, which extends over 

 the perix)hery and the posterior portion of the base, and a series 



