Occidozyga rhacoda (Inger, Boeadi, and Taufik, 1996)

Class: Amphibia > Order: Anura > Family: Dicroglossidae > Subfamily: Occidozyginae > Genus: Occidozyga > Species: Occidozyga rhacoda

Rana rhacoda Inger, Boeadi, and Taufik, 1996, Raffles Bull. Zool., 44: 364. Holotype: MZB Amph. 2991, by original designation. Type locality: "Kalang River, Mentaya Hulu Distribt, East Kotawaringin, Central Kalimantan, Indonesia, (1° 25′ S/ 112° 20′ E), from stream 3 m wide in primary forest."

Limnonectes rhacodaHoffmann, 2000, Sauria, Berlin, 22: 7.

Limnonectes rhacodus — Min, Das, and Haas, 2013, Check List, 9: 1588. Correction of gender. 

Occidozyga rhacoda — Flury, Haas, Brown, Das, Min, Kueh, Scheidt, Iskandar, Jankowski, and Hertwig, 2021, Mol. Phylogenet. Evol., 163 (107210): 11. 

English Names

None noted.


Northern and central Kalimantan (Borneo), Indonesia); reported in Kubah National Park, Matang Range, 500 to 1120 m elevation.

Geographic Occurrence

Natural Resident: Indonesia

Endemic: Indonesia


Retained in Rana because the authors reject the nomenclatural novelties of Dubois as based on a number of weaknesses summarized in Inger, 1996, Herpetologica, 52: 241-246. See statement of geographic range, habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 629. Min, Das, and Haas, 2013, Check List, 9: 1588–89, provided records for Sarawak, East Malaysia. Earlier records from Sarawak are referable to Occidozyga berbezaFlury, Haas, Brown, Das, Min, Kueh, Scheidt, Iskandar, Jankowski, and Hertwig, 2021, Mol. Phylogenet. Evol., 163 (107210): 1–17, detected in their dataset three mtDNA lineages from Sarawak. The specimens identified by Flury et al. (2021) as Occidozyga rhacoda are from within the range (Sarawak, Malaysia) of the newly named Occidozyga berbeza and not from the previously known range (central Kalimantan, Indonesia) of the externally similar Limnonectes rhacoda, which suggests the possibility that the generic name change of Limnonectes rhacoda to Occidozyga is based on a mistaken identification and requires confirmation. A quick examination of the mandibular symphysis and tongue morphology would probably be sufficient to resolve the problem. 

External links:

Please note: these links will take you to external websites not affiliated with the American Museum of Natural History. We are not responsible for their content.