HCHENEIDIDAE. 
Echeneis remora Linnaeus. 
One from Hull's Sound, one from Pomoton, one from Hull's 
Island, two from Lat. S. 28 and W. 45 , and 3 from Cape Verde 
Island, Length 73 to 153 mm, Our material shows usually 18 
dorsal lamellae, frequently 17 and rarely 19, Compared with 
an example of Rhombochirus tetrapturorum Poey, from Florida and 
now in the Academy, the present species differs chiefly in its 
larger eye. In Rhombochirus the pectoral rays are quite stiff 
and rigid, though in Echeneis only about outer half of fin is 
flexible. All our exemples of E. remora are a dull uniform brown, 
the lower surface not paler, iInkR, tetrapturorum the coloration 
is strikingly variegated, 
