Tylomys nudicaudus (Peters, 1866) . Monatsb. K. Preuss. Akad. Wiss. Berlin, 1866:404.

TYPE LOCALITY: Guatemala .

DISTRIBUTION: C Guerrero and C Veracruz, Mexico, south to S Nicaragua, excluding Yucatan Peninsula.

SYNONYMS: gymnurus, microdon, trillai.

COMMENTS: Goodwin (1934) passingly noted that La Primavera (Dept. Alto Verapaz) may be the type locality, a restriction which should be formally considered by a future revisor. Goodwin (1969) relegated gymnurus to a subspecies of T. nudicaudus .