Scutalus mariopenai Breure & Mogollón, 2010

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: BULIMULIDAE

ESPÉCIE: Scutalus mariopenai Breure & Mogollón, 2010

Tamanho médio: 37 – 41 mm

Ocorrência: Peru (Ancash)

Localidade tipo: Peru, Departamento de Ancash, Catzcal

Altitude: 1040 m

Nome original: Scutalus mariopenai Breure & Mogollón, 2010

Etimologia: o nome da espécie é uma homenagem ao malacologista peruano Prof. Mario Peña González (Lima)

Descrição original:

(Breure & Mogollón, 2010): “Shell up to 41.1 mm, 1.65 times as long as wide, umbilicate and deeply perforated, conical, with slightly convex sides; solid. Ground colour uniformly whitish-corneous, the upper whorls lighter, with four spiral light chestnut-brown bands, a small one below the white-lined suture, two broader ones above and below the periphery (which in some specimens are faintly subdivided into two equally broad bands) and a fourth band encircling the umbilicus.

Surface lustreless, with growth striae and spiral lines of fine, punctuate granulation, starting shallowly on the postnepionic whorl, but becoming rapidly more conspicuous on the following and fading away inside the umbilicus. Protoconch pit-reticulate. Whorls 6.3, somewhat convex, the last whorl saccate; suture impressed, somewhat crenulate, at the aperture ascending in front. Aperture large, ovate, glossy white inside with the pattern visible in banded specimens; margins converging; 1.30 times as long as wide, 0.70 times the total height. Peristome broadly expanded and backwardly reflexed, glossy whitish. Columellar margin straight, broadly expanded and merging into the rather thick parietal callus.”

Fotos: (1,2) cortesia Femorale, 2017, Peru, 40.5 e 38.7 mm respectivamente

Figura: Breure & Mogollón, 2010: (26) Scutalus phaeocheilus altoensis, HOLOTYPE RMNH 114045, 37.2 mm; (27-30) Scutalus mariopenai, (27-28) HOLOTYPE RMNH 114055, H = 41.1 mm; (29-30) PARATYPPE RMNH 114056

Fontes:

Descrição original: Breure, Bram & Mogollon, Valentin. (2010). Well-known and little-known: miscellaneous notes on Peruvian Orthalicidae (Gastropoda, Stylommatophora). Zool. Med. Leiden Netherlands Centre for Biodiversity Naturalis P.O. Box. 84. página(s) 15-34, disponível online em  https://www.researchgate.net/publication/228473591_Well-known_and_little-known_miscellaneous_notes_on_Peruvian_Orthalicidae_Gastropoda_Stylommatophora

página(s): 24, fig. 16-23

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1807045