| OCR Text |
Show 1869.] CLASSIFICATION OF THE HELICTERINAE. 651 Sec 2. Leeves aut tenuiter striatee. Leptachatina antiqua (Pse.). Leptachatina gracilis (Pfr.). brevicula (Pse). leevis (Pse.). cerealis (Gld.). nitida (Newc). cornea (Newc). obclavata (Pfr.). cingula (Migh.). obtusa (Pfr.). compacta (Pse). pyramis (Pfr.). exilis (Gul.). resinula (Gul.). extincta (Pfr.). simplex (Pse). grana (Newc). teres (Pfr.). guttula (Gld.). Costulosee. balteata (Pse). margarita (Pfr.). costulosa (Pse.). oryza (Pfr.). • dimidiata (Pfr.). --- striatula (Gld.). extensa (Pse). semicostata (Pfr.). fusca (Newc). tenuicostata (Pse.). fuscula (Gul). terebralis (Gul.). glutinosa (Pfr.). tenebrosa (Pse). All the species of this genus are small, thin, and those of the type without columellar fold. They are widely distributed, being found on all parts of the several islands. There are a number of species which agree with the type in their general characters, but are usually thicker, and have a columellar fold more or less developed, and more elongate in shape. They unite with species of the genus Labiella. Genus 13. LABIELLA (Pfr.). Labiella, Pfeiff. Mon. Blatt. 1854, p. 142; Mon. Hel. Viv. 1859, vol. iv. p. 530. T. oblonga, solida; plica columellari torta; perist. obtuso, labiato, margine dextro incrassato. Labiella callosa (Pfr.). Labiella pachystoma (Pse). labiata (Newc). Sec. 2. corneola (Pfr.). succincta (Newc). crassilabrum (Newc). subrostrata (Pfr.). ellipsoidea (Gld.). • turgidula (Pse). • alholabris (Newc). vitrea (Newc). fumosa (Newc). This genus was founded by Dr. Pfeiffer on two species, of which the outer lip is unusually thickened. Mature specimens of these species not more thickened than several other species closely allied to them in their other characters, are common. I have consequently added several to this genus. They approach through their varieties certain species of Leptachatina. Both this and the previous genus v-ill require revision as more specimens and species are collected. |
