Seep frog

The seep frog or Balu oriental frog, Occidozyga baluensis, is a species of frog in the family Dicroglossidae. It is probably endemic to Borneo.[1][2]

Seep frog
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dicroglossidae
Genus: Occidozyga
Species:
O. baluensis
Binomial name
Occidozyga baluensis
(Boulenger, 1896)
Synonyms[2]

Oreobatrachus baluensis Boulenger, 1896
Phrynoglossus baluensis (Boulenger, 1896)

Range

Occidozyga baluensis is found in northwestern Borneo (Sarawak, Malaysia, Brunei, and Kalimantan, Indonesia) and was also recorded once in Lampung, Sumatra, although the latter is questionable.[1] Its name refers to its type locality, "Mount Kina Balu, North Borneo".[2]

Description

Occidozyga baluensis are small–medium-sized frogs. Males grow to a snout–vent length of about 25 mm (0.98 in) and females to 35 mm (1.4 in). Dorsal colouration is variable, brown, grey, or olive, sometimes with dark markings. Some individuals have a vertebral stripe. The belly is cream with an abundance of brown spots. Tadpoles have a long tail with low tail fin; the tip is pointed. The mouth is terminal in position and the orifice appears quite small.[3]

Dorsal and ventral view of Occidozyga baluensis from Boulenger's original species description.

Habitat

Occidozyga baluensis inhabit shallow ponds or water-filled depressions where clear water seeps out at the base of a slope. Tadpoles live in the shallow water film that covers the leaf litter in seepage areas. They are predatory and ingest small invertebrates.[3] The species is threatened by habitat loss caused by clear-cutting.[1]

References
  1. IUCN SSC Amphibian Specialist Group (2019). "Occidozyga baluensis". IUCN Red List of Threatened Species. 2019: e.T58406A114922637. Retrieved 8 June 2020.
  2. Frost, Darrel R. (2020). "Occidozyga baluensis (Boulenger, 1896)". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 8 June 2020.
  3. Haas, A.; Hertwig, S.T.; Das, I. (2014). "Occidozya baluensis Seep Frog". Frogs of Borneo. Retrieved 4 August 2014.
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