Ophichthid Eels — GOSLINE 
319 
don, i. e., in Simpson’s terminology (1940: 
148) Johnston would appear to be a primarily 
one-way "filter bridge" for fishes. This also is 
borne out in other fish groups. (3) There is no 
close relationship between the Hawaiian 
ophichthids and those of the West Coast of 
America. This, also true of other small fishes, 
checks well with Ekman’s "East Pacific bar- 
rier" hypothesis (Ekman, 1935: 105). 
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