NEW LAND SHELLS FROM THE PHILIPPINE ISLANDS. 



By Paul Bartsch, 



Curator, Dirision of 'Marine Invertebrates, TJnilcd States National Miisemn. 



The United States National Museum has recently received a send- 

 ing of land shells from Mr. Walter F. Webb, of Rochester, New 

 York, for determination. This shipment proves to be the most re- 

 markable consignment that has come to my attention, for, all but one, 

 Chloraea gmeliniana Pfeiffer, of the eight forms represented, require 

 naming, and the latter, I believe, has not been found since Cum- 

 ing secured it at Baj^ombong. 



The material was obtained from one of the Mr. Webb's collectors 

 at Maquebenga (Makabenga), who writes: "I live in Maquebenga, 

 one of the rancherias of the newly conquered wild people. M}^ place 

 is situated in this mountainous district about 30 miles from Dupax. 

 If you were coming here you would walk over our muddy trail, 

 coiled on the mountain sides, for about two days." This rancheria 

 is located in the mountain range between the headwaters of the Caga- 

 yan and Magat Rivers, about 30 miles east of Dupax, in southern 

 Nueva Vizcaj^a, Luzon. It is in the territory of the Ilongates, a 

 tribe that has not encouraged foreign exploration or collecting, hence 

 the many novelties. 



The sending might be considered a sample box on account of the 

 limited number of specimens it contained, but notwithstanding this, 

 Mr. Webb, with characteristic generosity, has donated all the types, 

 in most cases the only specimens received, to the United States Na- 

 tional Museum. 



The nearest relatives of tlie forms described below appear to be in 

 the Mount Polls Range, which separates Nueva Vizcaya from the 

 mountain Province in the north. 



COCHLOSTYLA LIGNARIA AGUINALDOI. new subspecies. 



Plate IS, fig. 4. 

 Shell broadl}' ovate, all the whorls inflated and rounded, marked 

 by decidedly retractively slanting lines of growth and very fine, 

 rather closely spaced spiral lirations. Suture strongly constricted. 

 Surface covered by a thick periostracum, which carries the color 

 markings. The color of the shell gradually changes from buff of the 



Proceedings U. S. National Museum. Vol. 55— No. 2272. 



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