involucrum

	site	site # (info)	collection date	kind	depth	substrate	salin	comments	reference
A	Maruhubi Palace Ruins, near Stone Town, Zanzibar Island, Tanzania, Africa	3352 map	Aug 5, 1995	type locality		fine sand		beach with detritus-rich sand, churned up by crabs, at low tide.	Willems WR, Artois TJ, Vermin W, Backeljau T, Schockaert ER (2005): 1569