Description
Hylodes sazimai is a small slender species belonging to the Hylodes lateristrigatus, species group (sensu Heyer 1982 ) ,members are small, slender, smooth dorsums, and light dorsolateral stripes. Only males are known of this species, ranging from 27.1-28.5 mm SVL. Dorsal skin coloration is brown with the upper surfaces of the legs reddish brown with dark bars. Forearm is reddish brown with dark spots. There is a light line extending posteriorly from the eye to the groin along with a dark lateral stripe from tip of snout through nostril, eye and tympanum and terminating near arm insertion (white stripe parallel and below to this stripe also present). Lips dark, venter is whitish with dark brown marbling. Coppery iris. Head is longer than wide with a rounded snout when viewed dorsally, protruding in lateral view. Tympanum is distinct with a diameter two-thirds that of eye. Thumb lacking nuptial excrescences or spines. Relative finger lengths 1=2<4<3, whose upper surfaces lack well developed scutes. Vocal slits and well developed vocal sacs present (see below for call information). Dorsal skin texture is slightly rugose (also near vent) while venter is smooth.

Tadpoles were collected from the type locality and described at Gosner (1960) stage 25 (Haddad and Pombal Jr 1995) : Tadpoles were brown dorsally with small dark brown, black, and reddish spots. Ventral and lateral surfaces of body were pale brown with whitish punctations; tail was brown with large pale brown blotches anterodorsally; Iris yellowish; total length 47.5 mm, body length 16.8 mm; body elliptical when viewed dorsally, ovoid in lateral profile and widest posteriorly. Nostrils midway between eyes and snout. Spiracle sinistral opening at midbody. Cloacal tube short, conical and opens dextrally. Labial tooth row formula is 2(2)/3(1).

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Brazil

	View distribution map in BerkeleyMapper.
	View Bd and Bsal data (1 records).

Only known from the type locality next to the Observatorio de Caprocornio, Joaquim Egidio, Municipio de Campinas at 1100 m in elevation.

Life History, Abundance, Activity, and Special Behaviors
Males call sporadically. Three neighbors were studied while they called 10 m apart from one another (Haddad and Pombal Jr 1995) and advertised at intervals of 9.90+/- 1.27 sec at a temperature of 22 celcius. Calls were 2.0 sec long and had 28-35 notes per call at a rate of 14.5/s. Note duration was .04-.05 sec. Each note was a rising frequency modulated whistle with a dominant frequency range of 4.0-5.5 Khz.

References

Gosner, K. L. (1960). ''A simplified table for staging anuran embryos and larvae with notes on identification.'' Herpetologica, 16(3), 183-190.

Haddad, C. F. B., and Pombal, J. P., Jr. (1995). ''A new species of Hylodes from southeastern Brazil (Amphibia: Leptodactylidae).'' Herpetologica, 51, 279-286.

Heyer, W. R. (1982). ''Two new species of the frog genus Hylodes from Caparao, Minas Gerais, Brasil (Amphibia: Leptodactylidae).'' Proceedings of the Biological Society of Washington, 95, 377-385.

Species Account Citation: AmphibiaWeb 2004 Hylodes sazimai <https://amphibiaweb.org/species/6271> University of California, Berkeley, CA, USA. Accessed Nov 12, 2024.

Citation: AmphibiaWeb. 2024. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 12 Nov 2024.

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