Crossodactylus caramaschii Bastos & Pombal 1995

DiagnosisA medium-sized specles (males 21.7-25.8 mm snout-vent length), belonging to the Crossodactactylus gaudichaudii group, characterized by slender body, broad head, short snout, canthus rostralis distlnct and straight, and belly with brown reticulations.

Known from the type locality in the Caverna do Diabo, Municipality of Eldorado, and in the municipalities of Capão Bonito, Ribeirão Branco, Apiai, Iporanga, and Pariquera-Asu (all localities in the southern part of the state of São Paulo, Atlantic rain forest, southeastern Brazil).

mucilagem

Description of holotype Body slender; head longer than wide, snout short, its shape rounded in dorsal view and protruding in lateral view; nostrils directed laterally, slightly protuberant; canthus rostralis distinct, straight; loreal region weakly concave; tympanum distinct, large, rounded, its diameter about two thirds of eye diameter; weak supratympanic fold; weakly developed paired subgular vocal sacs; tongue ovoid, medium-sized; no vomerine teeth; choanae small, slightly ovoid. Arms moderately robust; three spines on each thumb; subarticular tubercles single; outer metacarpal tubercle nearly rounded, inner metacarpal tubercle elliptical; scutes not developed on upper surfaces of the finger tips; fingers without webbing; finger lengths IV < II - I < III. Legs robust; feet with an elliptical inner metatarsal tubercle, larger than conical outer; subarticular tubercles single, rounded; toe discs small, upper surfaces of disks with weakly developed scutes; toes extensively fringed; extensive tarsal fold-flap, continuous distally with toe fringe on outer side of first toe; toe lengths I < II < V < III < IV. Posterior third of upper and lateral surfaces granulate; belly smooth. Color of holotype in life: Dorsum dark brown with reddish spots posteriorly; a light stripe extending from tip of snout to scapular region; a dark brown line extending from tip of snout through nostril, eye, and above/behind tympanum; tympanum light brown; upper surfaces of thigh, tibia, and feet brown with dark bars and reddish spots; forearm brown with dark spots; pupil black and iris copper; belly yellowish white with brown reticulations. Color of holotype in preservative: Similar to that in life, except for the absence of reddish coloration in dorsum and upper surfaces of thigh, tibia, and feet. Measurements of ho1otype: snout-vent length 24.3; head length 8.9; head width 7.9; eye diameter 2.9; interorbital distance 2.5; eye-nostril distance 1.4; tympanum diameter 2.0; thigh length 12.5; tibia length 13.1; foot length 13.0. Variation In some specimens, the dorsum is smooth and/or without dark spots. The number of spines on the thumb of males varies between two and four, generally three. The two females studied do not have thumb spines. The light supralabial stripe is sometimes incomplete. Measurements (mean ± SD, range) of 11 males, followed by one female in parentheses are as follows: snout-vent length 24.5 ± 0.99,21.7-25.8 (27.4); head wide 7.94 ± 0.21, 7.5-8.2 (8.4); head length 9.21 ± 0.45, 8.1-9.8(9.7); eye diameter 2.92 ± 0.1 1,2.76-3.16(2.88); interorbital distance 2.54 ± 0.15, 2.35-2.88 (2.40); eye-nostril distance 1.49 ± 0.28, 0.75-1.81 (1.44); nostril-snout distance 0.49 ± 0.14, 0.23-0.75 (0.52); tympanum diameter 1.89 ± 0.20, 1.44-2.19 (1.7); thigh length 11.84 ± 0.65,10.8-12.7 (12.0); tibia length 12.69 ± 0.50, 11.8-13.3 (14.0); foot length 12.31 ± 0.50, 11.3-13.0 (13.3).

AMÉRICA DO SUL

LC. Least Concern.

Crossodactylus caramaschii is a species of frog in the family Hylodidae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forest and rivers. It is threatened by habitat loss.