Anatomidae is a relatively obscure family of gastropods that were previously placed as a genus of the family Scissurellidae. Anatomids are found in all oceans, from shallow intertidal waters to the abyss and also at hydrothermal vents (Hickman 1998a; Geiger and Jansen 2004). Anatomids are diagnosed by their tiny size, usually 1 to 6 mm; a slit or foramen, and related selenizone associated with the anal fasciole extending to the outer side of the apertural lip; rhipidoglos-sate radula with a serrated rachidean tooth; and retention of paired ctenidea and hypobranchial glands. Shells are typically chalky to translucent white, not pigmented, and characteristically ornamented with microscopic cancellate or axial sculpture. The protoconch ranges from smooth to sculptured, with the terminal lip typically thickened and spire somewhat elevated. The umbilicus may be rounded to subcircular (Hickman 1998a). Shallow-water anatomids are typically found associated with marine plant life (Hickman 1998a; Geiger 2003). In Texas Anatomidae is represented by 1 genus and 2 species whose size ranges from 1 to 4 mm.