Anacithara undaticosta is a species of sea snail, a marine gastropod mollusc in the family Horaiclavidae.
In 1994 R.N. Kilburn disputed the attribution by Charles Hedley (1922) of Pleurotoma undaticostata Reeve, 1845 to the genus Anacithara, because the original figure by Reeve showed a shell that is too fusiform, and lacked further detail. The holotype of this species as described by Reeve is lost, making it impossible to describe this species accurately. Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213-359, pls 42-56Kilburn, R. N. "Turridae [sl](Mollusca: Gastropoda) of southern Africa and Mozambique. Part 7. Subfamily Crassispirinae, section 2." Annals of the Natal Museum 35 (1994): 177-228.
Description The length of the shell attains 9.5 mm.
The whitish shell has a fusiform shape. The, whorls are slightly shouldered, with longitudinal, waved ribs.G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
Distribution This marine species is endemic to Australia and occurs off Queensland.
References
Brazier, Proc. Linn. Soc. N.S.W., i., 1876, p. 161
External links Reeve, L.A. 1845. Monograph of the genus Pleurotoma. pls 20–33 in Reeve, L.A. (ed). Conchologia Iconica. London : L. Reeve & Co. Vol. 1. Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1-1295.