Rhodea mariaalejandrae Grego, Šteffek & Infante, 2007

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: ACHATINIDAE

ESPÉCIE: Rhodea mariaalejandrae Grego, Šteffek & Infante, 2007

Tamanho médio: 31.6 – 37.7 mm

Ocorrência: Colômbia (Huila)

Localidade tipo: Colômbia, Departamento de Huila, Timaná

Altitude: 1000 m

Nome original: Rhodea mariaalejandrae Grego, Šteffek & Infante, 2007

Etimologia: o nome da espécie é uma homenagem à filha do terceiro autor, María Alejandra Infante, de Bogotá, quem descobriu os primeiros espécimes do material tipo

Descrição original:

(Grego, Šteffek & Infante, 2007): “Shell dextral, turrid-cylindrical (more turrid in the apical half and more cylindrical in the apertural half), with 13 tapering teleoconch whorls. The protoconch whorls and the initial teleoconch whorls are convex, while the central whorls are flat and the last two ones concave; with a distinctly projecting peripheral keel, which is deeply concave at the base.

Sculptured with close, fine, evenly obliquely spaced, undulate striae over the entire surface. Aperture oblique subtriangular; its columellar margin sinuous, with a distinct callous fold, forming a very distinct tooth-like denticle in front. Outer lip distinctly curved upward, forming a very conspicuous sinulus with the columellar margin (similar to the sinulus in Clausiliidae); sinulus curved to the right. Basal margin callous, reflexed downward, with a weak callous bump near the basal, carinal canal.

Columella spirally ascending within the aperture, coiling around a relatively large central cavity (when viewed from the base), thus forming a kind of pseudoumbilicus, while the true umbilicus of the shell is closed. Shell ivory white, covered by a yellowish-brown, horny, seldom light milky periostracum that is usually lost on the early whorls when the specimens become fully grown.”

Fotos: (1,2) Rhodea mariaalejandrae, cortesia Femorale, 2023, Colômbia, 32.3 e 31.7mm respectivamente

Figura: Grego J., Šteffek J. & Infante A.P. (2007): (23-27) Rhodea mariaalejandrae, “Colombia, department Huila, Timaná”, 1°58´56”N / 75°56´54”E, 1011 m alt., foto: Dušan Slivka and Jozef Grego; (23) HOLOTYPE NHMUK 20050248, 34.2 mm; (24) PARATYPE 8, H=35,7 mm,  NHMUK 102246; (25) PARATYPE 5, H=31,6 mm, coll. JGB L1285/3; (26) PARATYPE 4, H=35,8 mm, coll. JGB L1285/2 (35c-d, enlarged); (27) PARATYPE 3, H=36,9 mm, coll. JGB L1285/1 (36c-d enlarged)

Fontes:

Descrição original: Grego J., Šteffek J. & Infante A.P. (2007). Review of the genus Rhodea (Gastropoda, Pulmonata, Subulinidae) with description of two new species from Colombia. Basteria. 19, figs 9-10, 15

MolluscaBase: https://molluscabase.org/aphia.php?p=taxdetails&id=1427823