Published July 14, 2019 | Version v1
Taxonomic treatment Open

Gastrotheca williamsoni Gaige 1922

  • 1. Fundación AndígenA, Apartado Postal 210, Mérida, VENEZUELA & Current address: Doc Frog Expeditions, Uvita de Osa, COSTA RICA
  • 2. Fundación La Salle de Ciencias Naturales, Museo de Historia Natural La Salle, Apartado Postal 1930, Caracas 1010 - A, VENEZUELA & Current address: Pontifícia Universidade Católica do Río Grande do Sul (PUCRS), Laboratório de Sistemática de Vertebrados, Av. Ipiranga 6681, Porto Alegre, RS 90619 - 900, BRAZIL
  • 3. Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, apartado 20632, Caracas 1020, VENEZUELA

Description

Gastrotheca williamsoni Gaige, 1922 *

Holotype: UMMZ 55559.

Type locality: San Esteban, Carabobo, Venezuela.

Distribution: Region 2. Known only from type locality.

Remarks: Not collected since original description. Either extremely rare, or extinct, or Gastrotheca walkeri could be a junior synonym. A review of this species is needed to clarify its taxonomy and conservation status. Duellman (2015) distinguished G. williamsoni from G. walkeri based on four morphological characters (absence of supraciliary processes ― vs present in walkeri ―, fingers ½ webbed ― vs ¼ webbed in walkeri ―, first finger longer than second ― shorter in walkeri ―, and granular tympanic annulus ― smooth in walkeri. The only known locality of G. williamsoni lies within the distribution of G. walkeri, and no additional specimen obtained for almost a century. As both species share a unique character among marsupial frogs (paired retroperitoneal brood pouches), have overlapping geographic distributions, and only differ in morphological traits prone to preservation artifacts, makes us doubt the validity of G. walkeri; assessing their taxonomic status requires further investigation. Included in subgenus Cryptotheca by Duellman (2015) or in Gastrotheca longipes species group sensu Castroviejo-Fisher et al. (2015).

Selected references: Gaige (1922); Lutz (1927); Ginés (1959); Rohl (1959); Rivero (1961, 1964a); Duellman (1980, 2015); Duellman et al. (1988); Barrio-Amorós (2013).

Notes

Published as part of Barrio-Amorós, César L., Rojas-Runjaic, Fernando J. M. & Señaris, J. Celsa, 2019, Catalogue of the amphibians of Venezuela: Illustrated and annotated species list, distribution, and conservation, pp. 1-198 in Amphibian & Reptile Conservation (e 180) (e 180) 13 (1) on pages 55-56, DOI: 10.5281/zenodo.11404264

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Linked records

Additional details

Biodiversity

Collection code
UMMZ
Family
Hemiphractidae
Genus
Gastrotheca
Kingdom
Animalia
Material sample ID
UMMZ 55559
Order
Anura
Phylum
Chordata
Scientific name authorship
Gaige
Species
williamsoni
Taxon rank
species
Type status
holotype
Taxonomic concept label
Gastrotheca williamsoni Gaige, 1922 sec. Barrio-Amorós, Rojas-Runjaic & Señaris, 2019

References

  • Gaige HT. 1922. A new Gastrotheca from Venezuela. Occasional Papers, Museum of Zoology, University of Michigan 107: 1 - 3.
  • Duellman WE. 2015. Marsupial Frogs Gastrotheca and Allied Genera. John Hopkins University Press, Baltimore, Maryland, USA. 407 p.
  • Castroviejo-Fisher S, Padial JM, De la Riva I, Pombal JP, Da Silva HR, Rojas-Runjaic FJM, Medina-Mendez E, Frost DR. 2015. Phylogenetic systematics of egg-brooding frogs (Anura: Hemiphractidae) and the evolution of direct development. Zootaxa 4004: 1 - 75.
  • Lutz A. 1927. Notas sobre batrachios da Venezuela e da Ilha de trinidad. Memorias do Instituto Oswaldo Cruz 20: 35 - 65.
  • Gines H. 1959. Familias y generos de anfibios Amphibia de Venezuela. Memoria de la Sociedad de Ciencias Naturales La Salle 19: 85 - 146.
  • Rohl E. 1959. Fauna Descriptiva de Venezuela (Vertebrados). 4 ta edicion, corregida y aumentada. Nuevas Graficas, Madrid, Espana. 516 p.
  • Rivero JA. 1961. Salientia of Venezuela. Bulletin of the Museum of Comparative Zoology 126: 1 - 267.
  • Rivero JA. 1964 a. The distribution of Venezuelan frogs IV. The Coastal Range. Caribbean Journal of Science 4: 307 - 317.
  • Duellman WE, Maxson LR, Jesiolowsky CA. 1988. Evolution of Marsupial frogs (Hylidae: Hemiphractinae): Immunological evidence. Copeia 1988 (3): 527 - 543.