A new species of Physalaemus (Anura, Leptodactylidae) from the Atlantic Forest of Misiones, northeastern Argentina

CARDOZO, D.E.; PEREYRA, M.O.

ZOOTAXA

MAGNOLIA PRESS

Año: 2018 vol. 4387 p. 580 - 590

1175-5326

A new species of Physalaemus from Misiones province, Argentina, inthe Atlantic forest domain is described. The new species is a member of the P.gracilis group, based on its phylogenetic position and the occurrence of aputative morpho-logical synapomorphy (occurrence of an unpigmented medianstripe on throat, chest, and/or abdomen). Physalaemus sp. nov. is characterizedby a long advertisement call composed of non-pulsed notes with slightlydescendant modulation, large size (mean SVL = 32.0 mm males, 34.0 mm females),slender body aspect, head longer than wide, supratympanic fold developed, anunpigmented median stripe on venter, medium sized inguinal glands, tarsaltubercle present, and supernumerary tubercles on hands and feet, which arecharacter states that combined distinguish the new species from all the membersof the genus. In this study, we provide its formal description based onexternal morphology, advertisement call, and 16S genetic distance. In addition,the distribution ranges for the new species and P. gracilis are revisited, theadvertisement call of P. gracilis is redescribed, and a discussion about theavailable names which could be applicable to the new species is provided.