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Family SYNBRANCHIDAE 
Body elongate, cylindrical, comprersed behind. Gills on 
5 or 4 branchial arches, well developed or rudimentary. No 
accessory breathing apparatus. Pectoral arch joined to skull 
by forked post temporal. Stomach without coecal sac or pyloric 
coeca. Ovaries with oviducts. No scales. Dorsal and anal 
reduced to low folds. No ventrals. Vent in posterior half of 
body. 
Eel like fishes in the rivers of India, East Indies, 
Philippines, China, Japan. Also tropical West Africa, Central 
and South America. 
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