Leptopoma atricapillum (Sowerby, 1843)
“Mr. Cuming has brought the following varieties, viz. : - Var. a. Nearly white, mottled variously with pale brown. Found on leaves of trees and bushes at Puerto-galero, isle of Mindoro. Var. b. Of a brown colour, with pale mottlings. Var. c. Of a pale colour mottled with dark brown, and a dark and light brown articulated band in front of the suture. Var. d. Of a pale colour, with darj brown irregular stripes radiating from the suture; paler in front. Var. e. White, with similar radiating dark brown stripes; keel white; brown stripes continued over the front. Found on leaves of trees and bushes at Calapan, island of Mindoro.” (Sowerby, 1843)
Sowerby (1843) original descriptions on Cyclostoma atricapillum – “Cycl. Testa globoso-pyramidali, tenui, nitidula, albicante, varie fusco-striagata, apice nigro, anfractibus 5, subrotundatis, plus minusve obsolete spiraliter carinatis; sutura distincta; aperture rotundata, superne subacuminata, peritremate acuto, reflexo, latere umbilicali sunsinuato, ultimi anfractus interrupto; umbilico parvo; aperculo corneo, tenui.”
Kobelt (1886) descriptions on Leptopoma atricapillum – “Testa perforata, globoso-pyramidata, tenuis, diaphana, albida, fusco varic variegate et interrupte fasciata, ad suturam maculata; spira pyramidata, apice acuto, nigro. An fractus 6 convexi, subtilissime striatuli, liris obsoletis distantibiis 5-6 ciagulati, ultimus angulatus, ad angulum carina distincta munitus, infra eani saepe distinctior nigro vel brunneo fasciatus, basi convexiusculus, obsolete liratus vel laevigatus. Apertura obliqua, lunari-circularis, extus leviter angulata, faucibus nitide albis; peristoma tenue, expansum, marginibus disjunctis, supero medio producto, columellari subsinuato, superne vix dilatato, umbilicum angustissimum semioccultante.”
Kobelt (1902) descriptions on Leptopoma (Trocholeptopoma) atricapillum – “Schale eng genabelt, kugelig kegelförmig, dünn, durchscheinend, weisslich, braun gescheckt und unterbrochen gebändert, an der Naht gefleckt; Apex spitz, schwarz; 6 gewölbte, fein gestreifte Windungen mit 5 oder 6 weitläufigen Spiralreifeu, letzte kantig, an der Kante mit deutlichem Kiel, darunter oft mit einer deutlichen Binde, unten leicht gewölbt, mit undeutlichen Reifen oder glatt; Mündung schräg, ausgeschnitten kreisrund, rechts leicht eckig, Gaumen glänzend weiss: Mundrand dünn, ausgebreitet, unterbrochen, oben in der Mitte vorgezogen; Spindelrand leicht ausgebuchtet, ob«n kaum verbreitert, den Nabel fast bedeckend.”
Leptopoma atricapillum – “Diam. maj. 11-12, min. 9-10, alt. 12-13 mm.” (Kobelt, 1886); Leptopoma (Trocholeptopoma) atricapillum – “H. 12-13. Durchm. 11-12:9-10 mm.” (Kobelt, 1902)
Type locality – “Puerto-galero, isle of Mindoro” (Sowerby, 1843)
Other localities – “Calapan, island of Mindoro” (Sowerby, 1843); “Bongao, Bilatan, & Sibutu” leg. A. Everett (Möllendorff, 1894); “Philippinen (Paragua)” (Kobelt, 1902)