Comprehensive Description

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Description

Syntypes: BMNH, 2 specimens: one male, one female, “Benito River”, Equatorial Guinea (Boulenger 1900).

Snout to vent length of approximately 110 mm; large head (broader than long); short rounded snout; nostril is somewhat nearer the eye than the tip of the snout; vertical pupils; notched tongue; two rows of vomerine teeth located between relatively large choanae; distinct tympanum that is approximately half the diameter of the eye; webbed pedal digits; bound lateral metatarsals; omosternum has a bony style; sternum is a cartilaginous plate lacking a style; simple terminal phalanges; subarticular tubercles are large; olive brown dorsally, with dark black bands between the eyes and on the dorsum.

The males of this species are much larger than the females. The males have a paired internal vocal sac and three short ridges (two longitudinal and one transverse) of small black spines along the inner surface of the first manual digit. There is a narrow posterior diverticulum of the lung that apparently occurs only in males. The male also has dermal papillae extending along the lateral surfaces of the body and proximal hindlimbs (Boulenger 1900; Noble 1925; Perret 1966)

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