is a species of marine goby
. Since the recent description of this species it has been found to have a wide distribution in the western Pacific
including the Great Barrier Reef
, New Guinea
, the Philippines
and the Yaeyama Islands
. One individual was photographed in Palau
, and on January 13 2005 one was caught in the lagoon
of Majuro Atoll
in the Marshall Islands
. This animal had only 9 soft rays
in its dorsal fin
instead of the normal 10, a congenital abnormality
known to occasionally occur in gobies and other fish.
Members of this species used to be assigned to the widespread species Exyrias belissimus
but it differs from that species in a number of respects, notably in the very long dorsal fin
spines and the paler coloration with numerous yellow or orange spots on all parts. It also differs in habitat
preference: E. belissimus
is a bottom-dwelling species of turbid
waters while E. akihito
prefers clear water and is usually found on coral rubble or sandy patches near coral reefs
at a depth of 10-43 m.
The species was named in honour of Emperor Akihito
of Japan, who is a keen ichthyologist
with a special interest in gobies. Type
material for the new species was in part procured by the Imperial Household Agency
's Biological Laboratory.
- (2005): Exyrias akihito, a......