Chome Forest Warty Frog

Frogs in the genus Callulina are endemic to the Eastern Arc Mountains of Tanzania. They are characterised by short blunt snouts and plump bodies covered with glandular warts. Callulina shengena is mainly grey with small white tubercles. It is a relatively large species of Callulina, reaching 43 mm (1.7 in) in snout–urostyle length.

Callulina shengena is known from only two small locations in the Chome Forest Reserve in the Eastern Arc Mountains of Tanzania. Its typical habitat is humid tropical montane forest, particularly forest dominated by the East African camphorwood (Ocotaea usambarensis). Its total area of occupancy is estimated to be 35 km2 (13.5 mi2) but this assumes that the frog is also present in the area intervening between its known locations.

Very little is known of the ecology of this species, specimens having been caught in pitfall traps, but some individuals have been seen climbing on undergrowth, low branches and tree trunks at night, at heights up to about 2.2 m (7.2 ft). It is believed that all members of the family Brevicipitidae reproduce on the ground by direct development.