Mastonia guamensis Kosuge, 1974

Mastonia guamensis Kosuge, 1974: 2, pl. 1, fig. 3.

Type locality. United States, Guam, San Luis D’Apra Bay, Mariana Islands .

Type material. USNM 301812, holotype and paratype in current catalogues under the same number.

Distribution. United States, Guam (Kosuge 1974; Smith 2003).