Tectarius antonii is a species of sea snail, a marine gastropod mollusc in the family Littorinidae, the winkles or periwinkles.
Description The maximum recorded shell length is 21 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLOS One 5(1): e8776. .
Distribution This species occurs in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles.
Habitat Minimum recorded depth is -2 m. Maximum recorded depth is 0 m.
References
Reid, D.G. (1989) The comparative morphology, phylogeny and evolution of the gastropod family Littorinidae. Philosophical Transactions of the Royal Society of London, Series B 324: 1–110. Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas