Petrolisthes nobilii Haig, 1960
Material examined. One male (ICMyL MAZ 9352) from La Manzanilla, and three females (ICMyL MAZ 9351) from La Boquita (19°06´N, 104°23´W).
Remarks. The species has a wide distribution ranging from the Gulf of California to Ecuador (Brusca 1980). In tropical Mexican waters the records were made at several sites (see Rodríguez 2008). Our study provides data from two sites in the southern Mexican coast.