Aulacospira porrecta Quadras & Moellendorff, 1894 Figures 3C, 5I

Aulacospira (Micropetasus) porrecta Quadras & Möllendorff, 1894: 95.

Aulacospira porrecta Möllendorff, 1898: 150; Pilsbry 1917 (1916-1918): 222-223, plate 38, fig. 2.

Aulacospira (Aulacospira) porrecta Zilch, 1984: 167, plate 2, fig. 27.

Type locality.

"in insula Ilin prope Mindoro".

Diagnosis.

Shell strongly flattened and keeled, body whorl with slight subsutural furrow on the dorsal side, protoconch spirally striated, teleoconch roughly wrinkled and finely striated spirally; aperture with four denticles (2 palatal, 1 parietal, 1 columellar); aperture free from penultimate whorl.

Measurements (in mm).

H = 1.5-1.6, D = 2.8-3.3 (n = 3).

Types examined.

Philippinen: Insel Ilin b. Mindoro, coll. Möllendorff, SMF 4614 (lectotype, selected by Zilch [1984], H: 1.6 mm, D: 3.3 mm); same data, SMF 4615/5 paralectotypes.

Additional material examined.

Mindoro Id., leg. Univ Alabama, TH Aldrich Coll, ex: WF Webb (THA-3083), UF 112320 (1 shell).

Distribution.

This species is only known from the type locality (Ilin Island, Fig. 2).