Homalopoma mactanense is a species of sea snail, a marine gastropod mollusk in the family Colloniidae.
Description The length of the shell attains 3.4 mm.
Distribution This marine species occurs off the Philippines.
References
Huang S.-I, Fu I-F. & Poppe G.T. (2016). Taiwanese and Philippine Colloniidae. Nomenclatural remarks and the description of 17 new species (Gastropoda: Colloniidae). Visaya. 4(5): 4-42. page(s): 21
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