lipotypen.

/ˈlɪpətʌɪp/Etymology: < Greek λιπ-, λείπειν to leave, be wanting + type n.
Zoology.
1882 21 Mar. 312 Mr. Sclater stated that..he had found it convenient to coin a term for the designation of a type of animal, the absence of which was characteristic of a particular district or region. This term he proposed should be ‘Lipotype’.
This entry has not yet been fully updated (first published 1903; most recently modified version published online June 2018).