Chiasmocleis anatipes

Chiasmocleis anatipes is a species of frog in the family Microhylidae. As currently known, it is endemic to northeastern Ecuador, but it is likely to occur also in adjacent parts of Peru and perhaps Colombia too.[1][3] The specific name anatipes refers to the "duck-like" feet of this frog, characterized by extensive webbing between the toes.[2] Common name Santa Cecilia humming frog has been proposed for this species.[3]

Chiasmocleis anatipes
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Microhylidae
Genus: Chiasmocleis
Species:
C. anatipes
Binomial name
Chiasmocleis anatipes
Walker and Duellman, 1974[2]

Description

Adult males measure 18–924 mm (0.7–36.4 in) and adult females, based on a single specimen, about 25 mm (1.0 in) in snout–vent length. The body is moderately slender. The snout is rounded.[4] The tympanum is concealed.[2] All but the first finger are fringed; no webbing is present. The toes are fringed and extensively webbed, but may be less developed in females. Males have spines on the chin. Both sexes have many dermal spines on the dorsum and cloacal region.[4] The dorsum is dull olive-green to dull brown with green and/or gold metallic flecks. The upper arms are tan or orange-colored.[2] The ventral coloration is cream with large, dark brown irregular spots or blotches.[4]

Habitat and conservation

Chiasmocleis anatipes occurs in lowland primary forest at elevations of 200–400 m (660–1,310 ft) above sea level. Specimens have been found in or near semi-permanent ponds. Breeding takes place in temporary ponds. This cryptic species is believed to be relatively widespread. It can suffer locally from habitat loss. It is found in the Yasuní National Park and the Jatun Sacha Biological Station.[1]

References
  1. IUCN SSC Amphibian Specialist Group (2018). "Chiasmocleis anatipes". IUCN Red List of Threatened Species. 2018: e.T57749A99930537. doi:10.2305/IUCN.UK.2018-1.RLTS.T57749A99930537.en.
  2. Walker, Charles F. & Duellman, William E. (1974). "Description of a new species of microhylid frog, Chiasmocleis, from Ecuador". Occasional Papers of the Museum of Natural History, the University of Kansas. 26: 1–6. doi:10.5962/bhl.part.4068.
  3. Frost, Darrel R. (2019). "Chiasmocleis anatipes Walker and Duellman, 1974". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 18 December 2019.
  4. Peloso, Pedro L. V.; Sturaro, Marcelo José; Forlani, Mauricio C.; Gaucher, Philippe; Motta, Ana Paula & Wheeler, Ward (2014). "Phylogeny, taxonomic revision, and character evolution of the genera Chiasmocleis and Syncope (Anura, Microhylidae) in Amazonia, with descriptions of three new species". Bulletin of the American Museum of Natural History. 386: 1–96. doi:10.1206/834.1. hdl:2246/6517.
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