Lentipes concolor

O'opu alamo'o

This is a rare goby, found only in the middle and upper reaches
of pristine streams. The Hawaiian name, O'opu alama'o, refers
to the belief that they represented two species. The female is
olive to brownish all over, while the male is brownish on the
head and pale yellow to bright red on the tail.

"Lentipes is diadromus as are most other prominent Hawaiian
stream animals. Only postlarvae and small juveniles appear to
actively migrate upstream. These migrants demonstrate superb
climbing ability and are known to surmount single waterfalls
100 meters high, as well as a series of six falls surpassing
300 meters in combined drop. Mature Lentipes characteristically
reside in the middle to upper reaches at elevations from about 50
to more than 500 meters" (Maciolek, 1977). These gobies may
reach 6 inches in length.
(female)


(male)

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