Hose's frog

Hose's frog (Odorrana hosii, often misspelled as O. hosei) is a true frog species with a wide range in Southeast Asia. This species was named after zoologist Charles Hose.

Hose's frog
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ranidae
Genus: Odorrana
Species:
O. hosii
Binomial name
Odorrana hosii
(Boulenger, 1891)
Synonyms

Huia hosii (Boulenger, 1891)
Rana hosei (lapsus)
Rana hosii Boulenger, 1891

Its closest living relatives appear to be O. chloronota which occurs to the north of Hose's frog's range, as well as O. livida and O. morafkai with a more limited range in Myanmar and Vietnam, respectively; these four appear to form a close-knit group wherein the northern species are barely closer to each other than Hose's frog is to any of them. Also quite closely related is O. megatympanum, another Vietnamese endemic.[2][3]

Description

This frog has a robust body with long, slender legs; males measure 50–60 mm, females 85–100 mm. The dorsal are dark green with brown sides, the ventral are pale, the limbs are marked with dark crossbars. Its finger- and toe-tips bear grooved discs. This frog also have many varians of dorsal colour. Including full green, full brown, green with brown dots, and brown with green dots. Its call heard like "cit" of rats. Its tadpoles apparently lack suctorial discs.

Distribution and ecology

Hose's frog has been recorded from the Malay Peninsula south of the Kra Isthmus, on Phuket, Tioman, Borneo, the Batu Islands, Sumatra, Simeulue,[4] Bangka Island, Belitung and Java. It lives in and along clear, swift streams and rivers in rainforest up to 1,700 meters ASL. Though declining in recent times due to deforestation, it is still widely distributed and plentiful, and there is evidence that it is more tolerant of pollution and will morer readily accept secondary forest than many other frogs in the region. It is therefore listed as a Species of Least Concern by the IUCN.[1]

Eggs are probably deposited in water in a way roughly similar to other true frogs. But the eggs inside their gelatinous outer layer are cream-coloured without a dark hemisphere, indicating a specialised oviposition site.

Footnotes
  1. Peter Paul van Dijk, Djoko Iskandar, Robert Inger (2004) Odorrana hosii. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2.
  2. Cai, Hong-xia; Che, Jing; Pang, Jun-feng; Zhao, Er-mi; Zhang, Ya-ping (2007). "Paraphyly of Chinese Amolops (Anura, Ranidae) and phylogenetic position of the rare Chinese frog, Amolops tormotus" (PDF). Zootaxa. 1531: 49–55. copy
  3. Stuart, Bryan L. (2008). "The phylogenetic problem of Huia (Amphibia: Ranidae)". Mol. Phylogenet. Evol. 46 (1): 49–60. doi:10.1016/j.ympev.2007.09.016. PMID 18042407.
  4. Sarenha Lawalata, Shobi Zenobia (2011). "Historical Biogeography of Sumatra and Western Archipelago, Indonesia: Insights from the flying lizards in the genus Draco (Iguania: Agamidae)" (PDF). digitalassets.lib.berkeley.edu.

Further reading
  • Inger, Robert F. (1966): The Systematics and Zoogeography of the Amphibia of Borneo. Fieldiana Zool. 52: 1–402.

Further reading
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