538 
body very long, subcylindrical forward, compressed behind. 
Head depressed abo re, pointed in front. Eye well developed, cover¬ 
ed by skin. Mouth wide, cleft extends below middle of eye. Man- 
diole protrudes. Outer teeth in jaws equal, close set, forms 
cutting edge. No canines. Short pointed band of teeth on vomer. 
Lips thick. Tongue free in front. Front nostril in short tube 
near snout tip. (Jill openings rather large, low, nearly vertical 
below pectoral bases. Vertebrae 156, of which 100 caudal. Lateral 
line present. Inconspicuous mucous cavities on head. Dorsal fin 
inserted close behind pectoral base, nearer latter than vent. Tail 
about half longer than vent. 
Large marine eels living in most warn seas in moderate depths. 
Many undergo cnanges with age, the young fragile, transparent, band 
like and with very small head. 
The following a doubtful species: 
Lep toc ephalus f asci atus^ (Richardson) 
Congrus fasciatus (GRAY) RICHARDSON, Ichth. China Japan, 
1346, p. 321. China Sea (on Chinese drawing). 
Conger fasci at us FOWLER, Hong Kong Naturalist, vol. 3, No. 
1, March 1932, p. 51 (copied). 
