Eupilumnus xantusi (Stimpson, 1860)

Material examined. One male (ICMyL MAZ 9063A), one ovigerous female (ICMyL MAZ 9063B), and one female (ICMyL MAZ 9063C) from La Boquita.

Remarks. The geographic distribution of this species ranges from the Gulf of California to Ecuador (see Pereyra 1998), with some records at Ixtapa region. In our study, we recorded this species as far as the Huatulco region providing new locations in the Mexican tropical Pacific waters.