Systrophia unidentata Roosen & Dorado, 2025

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: SCOLODONTIDAE

ESPÉCIE: Systrophia unidentata Roosen & Dorado, 2025

Tamanho médio: 8.9 – 10.8 mm

Distribuição: Equador (Morona Santiago)

Localidade tipo: Equador, “Morona Santiago Province, Río Yaupi, Cueva Chinkianas”

Altitude: 260 m

Nome original: Systrophia unidentata Roosen & Dorado, 2025

Etimologia: o nome da espécie “unidentata” refere-se à característica mais diferenciadora desta espécie, o seu dente apertural na parede palatina do peristômio

Descrição original:

(Roosen & Dorado 2025): “Shell strongly depressed, small for the genus, with a flat to slightly sunken spire; no visible dis-tinction between the protoconch and teleoconch. Whorl diameter small, only slowly increasing in width, creating a maze-like appearance from apical view. Sculpture con-sists of growth lines and weak inconsistent spiral elements. Aperture and preceding section of whorl slightly deflected, widened and impressed from the side, resulting in subcir-cular aperture with a small dent. In the middle of this dent, a strong tooth is visible on the palatal wall of the peristome. Peristome thickened, but not reflected. Umbilicus wide, up to 55% of total width. Periostracum thin, nearly invisible, colour of the shell whitish transparent”

Fotos: (1,2) Roosen & Dorado, 2025: Pontificia Universidad Católica del Ecuador, Quito, Equador: HOLOTYPE QCAZI 278677, “Ecuador, Morona Santiago Province, Río Yaupi, Cueva Chinkianas”

Fontes:

Descrição original: Roosen, M.T. & Dorado, C. (2025). New Scolodontidae (Gastropoda: Pulmonata) from Peru and Ecuador: description of a new species of Guestieria Crosse, 1872, Luteostriatella Roosen & Breure, 2024, and three new species of Systrophia L. Pfeiffer, 1855. Basteria. 89(1): 36-42.
página(s): 41, fig. 5

Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1823642