Shell: Relatively small, elongate conical with up to 8 whorls and an evenly rounded last whorl. Main sculptural elements are the widely spaced axial, sometimes pronouncedly opisthocline ribs on the upper part of all whorls, while on the basal part of the last whorl there are prominent spiral grooves. Some forms from near Darwin in NT (Sermyla venustula) have smooth sculptureless shells. Shell colour - black to dark brown to pale yellowish horn with reddish brown spots and flecks. Operculum oval and paucispiral.
Genus Sermyla H. & A. Adams, 1854
Type species: Melania tornatella Lea, 1850
Original reference: H. & A. Adams, 1854. Adams, H. & Adams, A. 1853. The genera of Recent Mollusca; arranged according to their organization. Vol. 1. John Van Voorst, London. 1-256, plates 1-32.
Type locality: Java.
Synonyms: Sermylasma Iredale, 1943
Widely distributed, occurring in Southeast Asia, the Indo-Malay Archipelago ranging far into the Pacific region, and in northern Australia.
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