Scientific Name
Dysomma polycatodon  
Dysomma polycatodon多齒前肛鰻
by: Wei-Ting Yang, NTOU
Author Karrer, 1982 Depth 100 - 200M
Chinese 多齒前肛鰻 Poisonous Fish No 
Family_Chinese 合鰓鰻科 Economic Fish No 
Family F080 Synaphobranchidae Edible Fish No  Chinese In Mainland China 多齒前肛鰻 
Max Length   Aquarium Fish No  Common Name 合鰓鰻 
Distribution in World India Ocean to West Pacific Ocean   Distribution in Taiwan South 
Habitats Benthos、Coastal  Holotype Locality Northwestern Madagascar, 15°21'S, 46°11'E, depth 170-175 meters 
Reference 陳餘鋆, 2002. 臺灣深海鰻類的分類,分布,柔軟器官及以腦部形態與尾鰭骨骼探討真鰻類及糯鰻亞目之親緣關係; 楊瑋庭 , 2011. 碩士論文:臺灣合鰓鰻科魚類之初步分類研究.; Karrer, C. , 1982. Anguilliformes du canal de mozambique (Pisces, Teleostei). Fauna tropicale. 23: 1-116; Chen, Y. Y. and H. K. Mok, 2001. A new synaphobranchid eel, Dysomma longirostrum (Anguilliformes:Synaphobranchidae), from the northeastern coast of Taiwan.Zoological studies. 40(2): 79-83.  Böhlke, J. E. 1949 Karrer, C. 1982 沈世傑 編 Shih-Chieh Shen ed. 1993 Chen, Y. Y. etc. 1995 Chen, Y. Y. etc. 2001 
Specimen List SIO00-35.  
Common Name Shortbelly eel 
Redlist Status NL Not in IUCN Redlist     
Characteristic No scale. Pectoral fin present. Upper jaw longer than lower jaw. Premaxillary teeth 2. Upper jaw teeth small, in 3 rows; lower jaw teeth in 1 row, anterior two large vomerine teeth 5. Premaxillary vomerine teeth compound, Dorsal fin origin in advance of pectoral fin. Vertebrae 128-140. Total length 15.6 of body depth, 7.4 of head length; caudal length 6.7 of the length from head to trunk; head length 5.1 of snout length; snout length 3.3 of diameter of eye. Rictus behind rear of eye. Eye small. Length of anus to gill slit shortor than head length. Body color brown. Dorsal and anal fin white.
habitats Demersal fishes; inhabit in 100 to 400 meters deep, feed on small fishes, crustaceans and other invertebrates. 
Distribution West Indian and West Pacific. 
Utility No enough quantity for fishery.