Vol. 32, pp. 15-20 April 11, 1919 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON CRITICAL REMARKS ON PHILIPPINE LANDSHELLS WITH DESCRIPTIONS OF NEW FORMS. BY PAUL BARTSCH.i The present paper embraces descriptions of new forms of Philippine Island landshells and a discussion of involved nomenclatorial problems concerning some of the names be-stowed upon species long ago. The facts presented were brought out in the examination of material sent to the United States National Museum for determination, chiefly by Mr. Walter F. Webb, of Rochester, N. Y., whose indefatigable efforts in the Philippine field are rapidly increasing our knowl-edge of the mollusk fauna of that region. Other forms were transmitted by Mr. Gilbert S. Perez, Industrial Supervisor, at Lucena, in Tayabas, Luzon, while still others are the product of the late Colonel Edgar A. Mearns' collecting in the Philippine Islands, and one new form was the gift of Mr. Wm. H. Weeks, of Brooklyn, N. Y. The types of all the new material are in the United States National Museum, as well as additional representative speci-mens. These were donated by the gentlemen above mentioned. Hemiglypta webbi, new species. Shell dark horn colored, broadly conic, very thin, with strongly cari-nated periphery. Upper surface of the whorls moderately rounded. The first half turn marked by strong wavy axial wrinkles, which is succeeded by a half turn that is finely wrinkled; from there on, the axial sculpture consists of fine retractively slanting, wavy threads, which are separated by spaces about as wide as the threads. The spiral sculpture consists of fine incised fines which break the axial threads into a series of slender elongated tubercles having their long axis parallel with the axial threads, i Published by permission of the Secretary of the Smithsonian Institution. 6— Pboc. Biol. Soc. Wash., Vol. 32, 1919. (15)
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