{{Short description|Genus of bivalves}} {{Speciesbox | image = | image_caption = | genus = Thecalia | parent_authority = H.Adams & A.Adams, 1857 | species = concamerata | authority = (Gmelin, 1791) }}
'''''Thecalia''''' is a monotypic genus of bivalves belonging to the family Carditidae. The only species is '''''Thecalia concamerata'''''.<ref name="GBIF">{{cite web |title=Thecalia H.Adams & A.Adams, 1857 |url=https://www.gbif.org/species/4373050 |website=www.gbif.org |access-date=20 October 2021 |language=en}}</ref> ''T. concamerata'' is also known as "dead mans hands"<ref name="Branch 2010" />
The species is found in Southern Africa from Port Nolloth on the West Coast to Transkei.<ref name="GBIF" /><ref name="Branch 2010">Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. (2010). ''Two Oceans: a guide to the marine life of southern Africa'' Struik Nature, Cape Town. page 120 {{ISBN|978 1 77007 772 0}}</ref>
The shell is small, approximately rectangular, with rough ribs radiating from the hinge The ventral edge of the shell id folded inwards to form a brood chamber.<ref name="Branch 2010" />
==References== {{Reflist}}
{{Taxonbar|from1=Q18588631|from2=Q14480724}}
Category:Carditidae Category:Monotypic bivalve genera