Scutalus mariopenai
| Scutalus mariopenai | |
|---|---|
 |
|
| A live individual of Scutalus mariopenai | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): |
clade Heterobranchia clade Euthyneura |
| Superfamily: | Orthalicoidea |
| Family: | Bulimulidae |
| Subfamily: | Peltellinae |
| Genus: | Scutalus |
| Subgenus: | Scutalus |
| Species: | S. mariopenai |
| Binomial name | |
|
Scutalus mariopenai Breure & Mogollón Avilla, 2010 |
|
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Scutalus mariopenai is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Bulimulidae.
The specific name mariopenai honours Mario Peña González, a malacologist from Lima and tutor of the second author. The specific epithet is a noun in the genitive case.
The distribution of Scutalus mariopenai includes Peru. The type locality is Catzcal (09°54’43’S 077°49’40’W), Ancash Region, Peru.Type specimens are stored in the Netherlands Centre for Biodiversity Naturalis, Leiden, the Netherlands, and in the private collection of V. Mogollón Avila, Lima, Peru.
Scutalus mariopenai is characterized by the broadly expanded and callous lip, the fine, punctuate granulation, and the whitish-corneous ground colour, with four brown spiral bands on the last whorl.
The shell height is up to 41.1 mm, 1.65 times as long as wide, umbilicate and deeply perforated, conical, with slightly convex sides and solid. Ground colour is uniformly whitish-corneous, the upper whorls are 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. The surface is 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. The is pit-reticulate. The shell has 6.3 whorls that are somewhat convex. The last whorl is saccate. The suture is impressed, somewhat crenulate, at the aperture ascending in front. The aperture is large, ovate, glossy white inside with the pattern visible in banded specimens. Apertural margins are converging. The aperture is 1.30 times as long as wide, 0.70 times the total height. The peristome is broadly expanded and backwardly reflexed, glossy whitish. Columellar margin is straight, broadly expanded and merging into the rather thick parietal callus.
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