Stumpffia tetradactyla Vences & Glaw 1991

A very small terrestrial microhylid; males 13-15 mm, females are unknown. Back is light brown to beige, usually with a teddy-bear shaped black figure, rarely with a beige median line. Flanks dark, with a distinct border between flank and back colouration in specimens from Nosy Mangabe. Back is without characteristic markings in one specimen from Tolagnaro. Venter whitish, with dark mottling on the throat. Skin on the back smooth. Tympanum rather indistinct, tympanum/eye ratio between 1/3 and 1/2. Tibiotarsal articulation reaches the eye. Four fingers, the inner finger reduced, and 4 recognizable toes. Males with a distinct, largely distensible, single subgular vocal sac. Call consists of a single, chirping note. Calls are arranged in series, which can last several minutes. Call duration is about 64-90 ms at Nosy Boraha, shorter at Nosy Mangabe and 225-245 ms at Tolagnaro. Call repetition rate is 30-37/min at Nosy Boraha, 17/min at Nosy Mangabe and 36 at Tolagnaro. Frequency is 4.8-5 kHz at Nosy Boraha, 6 kHz at Nosy Mangabe and 4.7-5 kHz at Tolagnaro. Stumpffia pygmaea and Stumpffia tridactylaare smaller with shorter hindlimbs. Other Stumpffia have 5 toes (the inner toe can be reduced).For references in the text, see here

Terra Typica: Nosy Boraha; Nosy Mangabe; Tolagnaro. Observed at elevations from sea level to 300 m.A common species at Nosy Boraha, in primary forest as well as in cultivated landscape. Males start calling mainly in the afternoon from the leaf litter.

Eggs and tadpoles are unknown.

Stumpffia tetradactyla is a species of frog in the family Microhylidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest. It is threatened by habitat loss..