holotype

hol·o·type   (hŏl'ə-tīp', hō'lə-)    n.  The single specimen or illustration designated as the type for naming a species or subspecies or used as the basis for naming a species or subspecies when no type has been selected. Also called type. hol'o·typ'ic (-tĭp'ĭk) adj.

Main Entry: ho·lo·type
Pronunciation: 'hO-l&-"tIp, 'häl-&-
Function: noun
1 : the single specimen designated by an authoras the type of a species or lesser taxon at the time of establishing the group
2 : the type of a species or lesser taxon designated at a date later than that of establishing agroup or by another person than the author of the taxon

holotype hol·o·type (hŏl'ə-tīp', hō'lə-)
n.
The specimen used as the basis of the original published description of a taxonomic group and later designated as the type specimen.