Notomastus magnus Hartman, 1947

Dasybranchus giganteus: Moore 1909: 279.

Notomastus giganteus: Berkeley and Berkeley 1941: 48.

Notomastus magnus: Hartman 1947: 412, Pl.50, figs 1-6; 1961:35; 1963:63; 1969:401, figs 1-6; Reish 1963: 429; Blake 2000: 83, fig. 4.14.

Type locality.

USA: California, Tomales Bay.

Type material.

(1)Paratype (LACM-POLY 0413) and 1 Paratype (LACM-POLY 2217).

Material examined.

(6 specimens) Baja California Sur: Magdalena Bay [25°36'8"N, 112°0'8"W] (1 specimen), 1.5 m, December 6 1996, Coll. JALG; Sonora: Puerto Peñasco, La Cholla Bay [31°20'37.8"N, 113°38'01.7"W] (5 specimens), 1.5 m, August 7 2006, Coll. JALG and MEGG.

Records.

USA: California (Moore 1909 as Dasybranchus giganteus; Berkeley & Berkeley 1941 as Notomastus giganteus; Hartman 1947, 1961, 1963, 1969, Blake 2000) México: Western coast of Baja California Sur and Northern Gulf of California, Sonora (present study)