Spartocentrum digueti (Mabille, 1895)

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: BULIMULIDAE

ESPÉCIE: Spartocentrum digueti (Mabille, 1895)

Tamanho médio: 33 mm

Ocorrência: México, Baja California

Localidade tipo: “Plateau de San Zavier, vers 25° degré de latitude: recueillie dans le charbon provenant des anciens campements d’Indiens (Diguet)”

Nome original: Berendtia digueti Mabille, 1895

Redescrição:

(Breure, 1978): “Shell cylindrical, tapering towards the apex, subrimateperforate, rather thin. Colour (grayish-) whitish. Surface lustreless, sculptured with obtuse axial riblets (the interstices about as broad as the riblets), 50 riblets on the penultimate whorl. Protoconch slightly club-shaped, the third whorl narrower than the first two whorls; first 2 1/2 whorls with axial riblets (the interstices about as broad as the riblets) and numerous fine spiral lines in between, the riblets more closely set at the transition to the last whorl (of the protoconch) which is sculptured with spiral series of granules.

Whorls 20, slightly convex, slowly and regularly increasing, the last equal to the penultimate and slightly exceeding the antepenultimate in width; suture well impressed; the last whorl rounded, slightly tapering, adnate or free and descending in front, acutely keeled above and obtusely keeled around the umbilicus.

Aperture subcircular-ovate, angulated at the parietal-palatal margin and the basal-columellar margin; I.I times as long as wide, 0.13 times total length. Peristome continuous, thin, expanded. Columella twisted-arcuate, with a slightly granulose spiral swelling.”

Fotos: (1,2) Museu Nacional de História Natural, Paris: SYNTYPE de Berendtia digueti Mabille, 1895, MNHN-IM-2000-28035, Plateau de San Javier, México, coll Réc. Diguet 1894, 32.7mm; (3) Breure, 1978: Figura de Spartocentrum digueti (Mabille). Mexico, Baja California, plateau de San Javier (MNHN)

Fontes:

Descrição original: (como Berendtia digueti Mabille, 1895) Mabille, J. (1895). Mollusques de la Basse Californie recueillis par M. Diguet. Bulletin de la Société Philomathique de Paris. ser. 8, 7: 54-76., disponível online em https://biodiversitylibrary.org/page/31967279
página(s): 70

Thompson, F. G. (2011). An annotated checklist and bibliography of the land and freshwater snails of México and Central America. Florida Museum of Natural History Bulletin. 50(1): 1-299

Breure, Bram. (1978). Notes on and descriptions of Bulimulidae (Mollusca, Gastropoda). Zoologische Verhandelingen. 164

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1064272