Plekocheilus paraguas Borrero & Breure, 2011

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: AMPHIBULIMIDAE

ESPÉCIE: Plekocheilus paraguas Borrero & Breure, 2011

Tamanho médio: 62 mm

Habitat: vive em árvores

Ocorrência: Colômbia, Vale del Cauca

Localidade tipo: Colômbia, Vale del Cauca, “Serranía de Los Paraguas, Corregimiento El Boquerón, Vereda Las Amarillas, ca. 20 km NW Municipio El Cairo, near Cerro El Inglés”

Altitude: 2000 – 2460 m

Nome original: Plekocheilus (Eurytus) paraguas Borrero & Breure, 2011

Etimologia: o nome da espécie é uma referência à localidade tipo, a Serranía de Los Paraguas

Descrição original:

(Borrero & Breure, 2011): “Shell up to 48 mm (mean 42.7, n = 9), about 1.58 times longer than wide, imperforate, ovate, sides convex, relatively thick. Periostracum honey yellow to amber in color, with descending oblique bands of darker reddish-brown which radiate from the suture between the penultimate and the body whorls; the edges of the axial bands irregular, with a zigzag appearance stronger in the upper part of the body whorl.

Upper whorls usually lacking the axial (oblique) banding, but exhibiting a spiral sub-sutural reddish-brown band which is interrupted with equally spaced blotches of yellow. Surface shining, upper whorls with growth striae as the dominant sculpture, also including fine granules. Body whorl with oblique growth striae, the dense, fine granulation as the dominant sculpture. Granules spherical in shape, more densely on (but not restricted to) the obliquely arranged axial growth lines.

Protoconch eroded. Whorls 4.2, slightly convex; suture impressed, neither descending nor ascending in front. Aperture elongate-ovate, about 1.65 times as long as wide and about 0.7 times the total shell height; plane of aperture slightly oblique to axis of shell; color within a uniform cherry to purple. Columellar margin oblique to axis of shell, with a weak, but long fold midway. Peristome somewhat expanded, reflexed, white to slightly tinted with (very) light brown; dorsally, the expanded portion ranges from white to a salmon color. Parietal wall with a thin, white-edged callus, colored purple from about midway to the upper part of the aperture.”

Fotos: (1) cortesia Femorale, Plekocheilus paraguas, 2011, Colômbia, 40.3mm; (2,3) Borrero Breure, 2011: Universidad del Valle, Zoologia, Cali, Colombia, HOLOTYPE UVZ 97015, L.A. Osorio, iii.1996

Fontes:

Descrição original: (como Plekocheilus (Eurytus) paraguas Borrero & Breure, 2011) Borrero, F. J.; Breure, A. S. H. (2011). The Amphibulimidae (Mollusca: Gastropoda: Orthalicoidea) from Colombia and adjacent areas. Zootaxa. 3054, 1-59.
página(s): 40, fig. 12A, 17E-F

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1263441