INVESTIGADORES
ALCALDE Leandro
artículos
Título:
The tadpole of Physalaemus fernandezae (Anura: Leptodactylidae).
Autor/es:
ALCALDE, L., NATALE, G. & R. CAJADE
Revista:
HERPETOLOGICAL JOURNAL
Editorial:
BRITISH HERPETOL SOC
Referencias:
Lugar: London; Año: 2006 vol. 16 p. 203 - 211
ISSN:
0268-0130
Resumen:
This paper describes the external and buccopharyngeal morphology, chondrocranium, and cranial muscles in tadpoles of Physalaemus fernandezae. The data are compared with those for other species of Physalaemus to improve the diagnosis of the "species group" within the genus. Species of the "P. biligonigerus" group have four infralabial papillae, two semicircular arches of pustulations in V-shaped pattern on the prenarial arena, 6-8 conical papillae, and 40-60 pustulations on the buccal roof arena, four postnarial papillae, a semicircular median ridge, claw-shaped lateral ridges, and larval crista parotica with poorly developed anterior process. Species of "P. pustulosus" group possess four infralabial papillae (shared with P. biligonigerus group), tooth row formula 2(2)/3, four lingual papillae, two postnarial papillae, twelve conical papillae and 16-20 pustulations on the buccal roof arena, short lateral ridges with rough concave margins, and larval crista parotica with well developed anterior process and reduced posterior process. Species of "P. cuvieri " group present two infralabial papillae, three pustulations and two serrated papillae on the prenarial arena, five pustulations and two serrated papillae on the postnarial arena, four long and bifid papillae and more than 60 pustulations on the buccal roof arena, and lack larval crista parotica. Species of "P. signiferus" group possess both medial and lateral mental gaps absent, and a tooth row formula 2(2)/3(1).