18 Proceedings of the Biological Society of Washington. 



sarcinosa to the subspecies occurring upon that island, which will have to 

 bear the name Cochlostyla sarcinosa sarcinosa Broderip. 



In 1850, Deshayes in Ferussac's "Histoire Naturelle Gen6rale et Particu- 

 liere des Mollusques Terrestres et Fluviatiles," on page 316, bestowed the 

 name Helix turgens upon a shell which is depicted on plate 108, figures 11 

 and 13. The locality cited in this case is "Philippine Islands." The 

 figures, however, quite clearly show that this name should be attached to 

 the shells from Guimaras Island and we may therefore restrict it to the 

 members of that island, which should be called Cochlostyla sarcinosa turgens 

 Deshayes. 



The third of the sarcinosa group to receive a name were the shells from 

 the northwestern portion of Negros, which were christened Cochlostyla 

 sarcinosa dictyonina by von Mollendorff in the Abhandlungen der Natur- 

 forschenden Gesellschaft zu Gorlitz in 1898, volume 22, page 138. 



There are two additional races in the complex before us, which will 

 require a name. The first of these comes from the south central coast of 

 Negros and may be known as Cochlostyla sarcinosa negrosa new sub- 

 species, while the second one comes from northwestern Panay, and may 

 be known as Cochlostyla sarcinosa pandana. 



Of these five races, four have a broad peripheral band which extends to 

 the lip on the last whorl. Of these, Cochlostyla sarcinosa sarcinosa is the 

 largest. It is a subglobular form with olive green ground color, and only 

 weakly fenestrated with spiral and axial markings. It has a whitish zone 

 of about the same width as the brown band immediately below the latter. 



The new subspecies, Cochlostyla sarcinosa negrosa, approaches typical 

 Cochlostyla sarcinosa in shape and ground coloration. It is, however, much 

 more strongly marked by hydrophanous axial and spiral bands of white 

 which gives to this race the fenestrated appearance characteristic of Coch- 

 lostyla sarcinosa turgens. The type of this race is Cat. No. 219,035, 

 U. S. N. M. and comes from Tayasan, Negros. 



The other two races are less broadly conic. Cochlostyla sarcinosa turgens 

 from Panay is the most strongly fenestrated form. It is marked by spiral 

 and axial bands of pale brown placed upon a pale olive ground color. 

 These markings are particularly well developed on the base. Cochlostyla 

 sarcinosa dictyonina Mollendorff is the darkest of all, resembling C. sarci- 

 nosa turgens in general color pattern, but having all the markings much 

 intensified. 



The fifth race, the one now christened Cochlostyla sarcinosa pandana, 

 lacks the brown peripheral band on the last turn, although this is present 

 in the suture on the early whorls. The type of this, Cat. No. 310,071, 

 U. S. N. M., comes from Pandan, northwest Panay. 



Leptopoma goniostoma cotabatensis, new subspecies. 



Shell similar to Leptopoma goniostoma Sowerby having, however, the 

 shoulders of the whorls more flattened and the peripheral keel less pro- 

 duced and the umbilicus more open. The aperture, too, is smaller and 



