Lilloiconcha aysensis Miquel & G. M. Barker, 2009

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: CYSTOPELTIDAE

ESPÉCIE: Lilloiconcha aysensis Miquel & G. M. Barker, 2009

Tamanho médio: 1.73 – 1.87 mm

Habitat: vive no solo, “as conchas foram encontradas enterradas em húmus e sob pedras, grandes rochas e folhas em decomposição”

Distribuição: Chile (Aysen)

Localidade tipo: Chile, Aysen, Puerto Chacabuco

Nome original: Lilloiconcha aysensis Miquel & G. M. Barker, 2009

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

Descrição original:

(Miquel & G. M. Barker, 2009): “Shell small (1.73–1.87 mm diameter in known specimens), discoidal, with 3.75 convex whorls; spire scarcely elevated, embryonic and adult shells well differentiated; protoconch of 1.75 whorls, smooth under low magnification but with a few weak axial ribs or growth lines and weak spiral incised threads when viewed at high magnification;

teleoconch with about 115 (80 on body whorl) prominent, straight, orthocline to weakly prosocline ribs; interstitial areas with 12 smaller riblets ornamented with small, irregular nodulae at their intersection with vestigial spiral threads; body whorl descending slightly; sutures well impressed; aperture large, subcircular (0.85 shell height) and slightly inclined; callus distinct; umbilicus open, about 0.3 shell diameter; periostracum elaborated as lamellae on the summit of riblets and especially the ribs; colour uniform cream-yellow; animal unknown”

Fotos: (1,2) Miquel & G. M. Barker, 2009:  (1) HOLOTYPE FMNH 312.442; (2) PARATYPE FMNH 308.206, Puerto Chacabuco, Aysen, Chile, coll. T. Cekalovic, 21.ii.1982; (3) Field Museum of Natural History, HOLOTYPE FMNH 312442, Chile, Aysen, (TC-109), Puerto Chacabuco, coll. T. K. Cekalovic, 21.ii.1982

Fontes:

Descrição original: Miquel, S. E.; Barker, G. M. (2009). New Charopidae from Chilean Argentine Patagonia: (Mollusca: Gastropoda: Stylommatophora). Archiv für Molluskenkunde. 138(1): 53-61., disponível online em https://doi.org/10.1127/arch.moll/0003-9284/138/053-061
página(s): 54

Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1347869