IBS   24490
INSTITUTO DE BIOLOGIA SUBTROPICAL
Unidad Ejecutora - UE
artículos
Título:
Larval anatomy of Andean Toads of the Rhinella spinulosa group (Anura: Bufonidae).
Autor/es:
GROSSO, JIMENA; LESCANO, JULIÁN; BALDO, DIEGO; PEREYRA, MARTÍN O.; SIU-TING, KAREN; CANDIOTI, FLORENCIA VERA; HAAD, M. BELÉN; AGUILAR, CÉSAR
Revista:
HERPETOLOGICAL MONOGRAPHS
Editorial:
HERPETOLOGISTS LEAGUE
Referencias:
Lugar: Lawrence; Año: 2020 vol. 34 p. 116 - 130
ISSN:
0733-1347
Resumen:
The Rhinella spinulosa group is a clade of toads that inhabit the Andes mountains from northern Ecuador to Patagonia. Its taxonomy was recently revised, and in its new arrangement comprises nine species, including Rhinella gallardoi traditionally placed in a different intrageneric group. In this work we study the larval external and internal morphology in this group, by describing for the first time tadpoles of R. achalensis, R. gallardoi, and R. vellardi, and then summarizing morphological data for R. limensis, R. papillosa, R. spinulosa, R. trifolium, and an unnamed lineage R. aff. spinulosa. Although we found no diagnostic larval features for the whole clade, two distinct morphs are identified. Most tadpoles are highly pigmented and slender, and their oral discs show a long gap in the second labial tooth row; conversely, tadpoles of R. limensis and R. vellardi share a globose body and a very short gap. Buccal and musculoskeletal features are highly conserved within the group and regarding other Rhinella, and include four lingual papillae, non-keratinized spurs, tripartite suprarostral cartilages, quadratoorbital commissure, and in musculature, m. subarcualis rectus II?IV invading the branchial septum III and laryngeal muscles reduced or absent.