nigromarginatus

	site	site # (info)	collection date	kind	depth	substrate	salin	comments	reference
A	Japan (Nippon, Yaponiya, Nihon, Japon, Giappone)	4046 map	1918 or earlier	default type					Yeri M, Kaburaki T (1918): abstract
B	Matsuwa (Matuwa Saki, Matsuwa-saki), near Misaki, Japan	1787 map	1944 or earlier						Kato K (1944): 299