Subulina octona

Identification

Width: 4.3 mm
Height: 14-17 mm
Whorls: 9-11

Subulina octona has a small, elongate, tapering shell with straight sides and a blunt apex. The whorls have deep sutures with radial striations. Lip is sharp and simple. Base of columella is slightly but distinctly truncate. Shell is translucent white; the body is a yellow to cream color.

Ecology

In northeastern North America Subulina octona may be found in greenhouses (Pilsbry, 1946) or in disturbed areas in large cities. It lays hard-shelled eggs.

Distribution

Introduced from tropical America. It occurs in large cities as far north as the Boston area (NatureServe, 2023).

Conservation

NatureServe Global Rank: G5
NatureServe State Rank: SNA