Stephacharopa paposoensis Araya & Miquel, 2018

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: CHAROPIDAE

ESPÉCIE: Stephacharopa paposoensis Araya & Miquel, 2018

Tamanho médio: 2.1 mm

Distribuição: Chile (Antofagasta)

Localidade tipo: Chile, Região de Antofagasta, “La Rinconada, Paposo”

Habitat: “as conchas foram encontradas enterradas em areia grossa e sob bromélias e cactos nativos”

Nome original: Stephacharopa paposoensis Araya & Miquel, 2018

Sinônimos: Stephacharopa paposensis [sic]

Etimologia: o nome da espécie é uma referência à localidade tipo

Descrição original:

(Araya & Miquel, 2018): “Shell minute, orbicular, up to 2.1mm in maximum diameter, moderately thick-shelled, with up to 4 whorls (average of 3.75, n = 25), umbilicate, spire slightly elevated. Shell colour uniform cream-yellow. Protoconch of 1.5 whorls; with 53–55 ribblets and smooth interspaces; teleoconch of 2.25 convex whorls, sculptured with 120–125 prosocline strong axial ribs (about 13μm in width), 56–57 ribs in last whorl, interstices with a variable number of radial riblets, depending of the distance between those (10 to 13);

ribs and riblets crossed by spiral threads or incisurae, producing fine nodules at intersections; these are more noticeable towards the periphery of the shell and in the last whorl. Suture deep and well-marked; aperture rounded oblique, about a third of shell width and about a half of shell height; peristome continuous, lip simple; umbilicus ample, deep, about 1/3 of shell width; callus a mere glaze; periostracum thin and yellowish, shiny. Soft parts unknown.”

Fotos e Figura abaixo: Araya & Miquel, 2018: Stephacharopa paposoensis: (A) HOLOTYPE MNHNCL 203448; (B) PARATYPE MACN-In. 40727; (C) PARATYPE MACN-In. 40727; coll. M. E. Araya and J. F. Araya, 17.i. 2016. Escala da barra = 500μm

Fontes:

Descrição original: Araya, J. F.; Miquel, S. E. (2018). A new Stephacharopa (Gastropoda: Punctoidea: Charopidae) from Paposo, northern Chile. Journal of Conchology. 43(2): página(s) 129-133

Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1551096