Charopatagonia delicatissima Miquel & G. M. Barker, 2023

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: CHAROPIDAE

ESPÉCIE: Charopatagonia delicatissima Miquel & G. M. Barker, 2023

Tamanho médio: 2.35 mm

Distribuição: Chile (Llanquihue)

Localidade tipo: Chile, Llanquihue, Maullín

Altitude: ~6 m

Nome original: Charopatagonia delicatissima Miquel & G. M. Barker, 2023

Etimologia: o nome da espécie é uma referência à concha, que é pouco calcárea

Descrição original:

(Miquel & G. M. Barker, 2023): “Shell minute, 2.35 mm width, discoidal, spire very weakly elevated, body whorl descending slightly more rapidly, height to width ratio 0.40; with 4 convex whorls regularly and rather rapidly increasing in width; walls very thin, translucent; profusely ornamented with low, radial ribs; aperture 0.84 shell height, rounded and a little descendent; umbilicus narrow at 0.17 shell width. Protoconch discoidal, with 1.75 whorls, first nuclear part bulbous, without sculpture, subsequently with ~15 rounded spiral cords or lirae that become obsolete just before commencement of teleoconch; radial sculpture entirely lacking.

Teleoconch 2.25 whorls, with closely spaced, prosocline delicate radial ribs, running broadly sigmoidal over shell periphery, each surmounted by elevated blade-like periostracal lamella; region between ribs with closely spaced riblets or microradials, each bearing an elevated periostracal blade of variable height, and very fine spiral cords which are occasionally nodular at intersection with riblets. Holotype with 135 radial ribs on body whorl.

Suture deeply impressed. Periostracum golden yellow, translucent, without darker flammulations or other markings; shell colouration in live material strongly influenced by underlying animal tissues (especially red-brown of digestive gland and creambrown ovotestis)”

Fotos: Miquel & G. M. Barker, 2023: Charopatagonia delicatissima, figura do HOLOTYPE MACN-In 44063

Fontes:

Descrição original: Miquel, S. E. & Barker, G. M. (2023). Charopatagonia, a new genus of Charopidae from meridional America, with description of two new species (Mollusca, Eupulmonata, Punctoidea). Spixiana. 45(2): 159-167.
página(s): 162, figs 1, 2C-D

Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1648699