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Family: Hylidae
Costa Rica Brook Frog, more...Red-eyed Stream Frog (es: Rana)
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Adult: Species description based on Duellman (2001). A medium-sized hylid (males to 37 mm, females to 40 mm). Dorsal: The dorsal surface is bright green. Some small, yellowish flecking may be present. A thin white stripe extends from above the upper lip, along the side of the body, to the groin. Ventral: The undersurfaces are bright yellow in most specimens, but may pale to nearly white under the head in some. Eye: The iris is bright red. The pupil is horizontal. Extremities: The hands and feet have relatively little webbing compared to some other hylids. Breeding season: Males call from vegetation near streams throughout the year (Duellman 2001), but less frequently during the dry season (Savage 2002). Peak breeding activity seems to occur in May and June (Duellman 2001); however, breeding and oviposition have never been observed in this species (Savage 2002). Egg: Gravid females contain between 48-69 eggs (Lang 1995). Tadpole: The tadpole is olive brown, with some lighter, bluish or greenish flecking (Duellman 2001). The tail has brown flecking on a lighter background that turns transparent on the fins (Duellman 2001). The tadpoles eyes are bright red (Duellman 2001). The mouth is composed of a large, sucking disc (Duellman 2001). There are two upper and 2-3 lower toothrows (Duellman 2001). Tadpoles inhabit quiet pools in streams (Duellman 2001). They also sometimes adhere to rocks (Savage 2002). Habitat: Premontane forest between 300 and 1600 m. Ecology: Duellmanohyla uranochroa is associated with stream habitats. This species is active at night, but has been found hiding in bromeliads during the day (Duellman 2001). Call: The call of D. uranochroa consists of a series of 4 or so bell-like "boops" (Duellman 2001). Males produce a slow or a fast call, depending on the locality (Duellman 1970, Duellman 2001). Karyotype: 2N = 24 (Leon 1969) Type locality: near Sipurio (Costa Rica) |