Trioceros sp. Ionides

Trioceros jacksonii undescribed form "Tanganyika" 

Common name: Tanganyika Jackson's Chameleon 

Taxonomy: This form represents probably an unde- scribed subspecies, that has been documented only based on a single female specimen with atypical head crests and rostral sharp single horn, collected by A.C. Ionides in the 19th century and deposited in the collections of California Academy of Sciences.

Range: S. Tanganyika territory, Tanzania (precise locality unknown)
Sexual dimorphism: Males unknown, single known female has a long thin single horn