Cycloramphus granulosus Lutz 1929

Diagnosis Male snout-vent lenght 38.2 ± 2.9, maximum 42.6 mm, females 37.8 ± 4.8, maximum 46.2 mm.Thumb lacking asperities; snout usually rounded, rarely sloping in profile; dorsal pattern uniform, blotched, spotted, or rarely with indications of dark-lined pattern; posterior surface of thigh uniform or mottled; in life, dorsum brown with yellow-green punctations, chest tan with white dots; dorsal texture granular-warty, lacking both shagreen and tubercles; foot lacking web, toes with lateral ridges or fringes.

Known from portions of the Serra da Bocaina (part of the Serra do Mar) and Itatiaia (in the Serra da Mantiqueira), in the northern coastal region of São Paulo State and the southern tip of Rio de Janeiro State, in Brazil. It occurs at around 800m asl.

Adult morphology Male snout-vent lenght 38.2 ± 2.9, maximum 42.6 mm, females 37.8 ± 4.8, maximum 46.2 mm. Vomerine teeth in two short, transverse, nearly contiguous patches behind and between the choanae; tongue half as wide as mouth opening, rounded posteriorly; a single tooth like process on anterior border of lower jaw; snout very bluntly rounded when seen from above, sloping forwards to the upper lip which has a slightly thickened rim, the upper jaw not projecting beyond lower; nostrils very small, superior, on a single low nasal elevation, separated from each other by an interval a little greater than their distance from eye. Canthus rostralis not evident; loreal region shghtly concave and sloping outwards towards the flaring upper lip. Eye large, prominent, its diameter twice its distance from nostril, equal to its distance from end of snout; interorbital diameter slightly greater than width of upper eyehd and greater than distance between nostrils. Tympanum not visible. Fingers short, free, with slight traces of lateral fringes, their tips ending in round disks which are not wider than the preceding phalanx; second longer than first, shorter than fourth and reaching nearly to base of penultimate phalanx of third; no pronounced pollex, but both palmar tubercles well developed; subarticular tubercles moderate; toes webbed only at the base, slightly fringed, their tips also in ball-like disks, third toe longer than fifth, reaching halfway to base of penultimate phalanx of fourth which is moderately long; subarticular tubercles small but distinct; an oval inner and a small round outer metatarsal tubercle; a very slight tarsal ridge; body broadly elliptical in shape, in postaxillary region equal to greatest width of head; when hind leg is adpressed, heel reaches center of eye; when limbs are laid along the sides, knee and elbow touch; when hind legs are bent at right angles to body, heels are separated. Skin of top of head and back heavily tubercular, less granular on upper limb surfaces; a diagonal dermal ridge from posterior corner of eye to angle of mouth; a small round inguinal gland; ventral surface minutely granular, the granules more prominent on posterior surface of femur. No skinfold across the chest. No external vocal sac. Color in alcohol: Uniform seal brown above, with a few of the tubercles tipped with pale gray, these seeming to occur in short diagonal lines along the dorsolateral region. The limbs are also seal brown, the femur nearly immaculate except for a few small scattered gray dots on its upper surface, the tibia with gray spots arranged in crossbars. The ventral region is a pale sepia with white dots on the chest and a darker reticulation on the throat. The last phalanx of each toe and finger is almost white, with a small black spot on top of each ball-shaped disk. Color in life: dorsum brown with yellow-green punctations, chest tan with white dots.

DD. Data Deficient.

Cycloramphus granulosus is a species of frog in the family Cycloramphidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest and rivers.