抄録
The following three species of the genus Glossogobius have been recorded from Japan: G.olivaceus (Temminck and Schlegel), G.biocellatus (Valenciennes) and G.giuris (Hamilton). Three specimens of the fourth species which well agree with the syntypes of Gobius celebius Valenciennes (Fig.4) have been collected in Iriomotejima (Fig.1).They were compared with nine specimens of G.celebius from Australia and the Philippines and twenty two specimens of G.giuris.It was found that G.celebius can be distinguished from G.giuris by the number of predorsal scales (13-15 in G.celebius and 17-22 in G.giuris);the number of spines on the gill-raker (4 and 12 on the fifth from the uppermost gill-raker on the lower limb in two specimens of G.celebius;0 and 1 in six specimens of G.giuris);eye diameter (6.6-9.2%, mean 8.0%, of standard length in twelve speci mens of G.celebius;3.8-6.4%, mean 5.0%, in twelve specimens of G.giuris);the two small additional pores between G and H on the oculo scapular sensory canal (Fig.3A);and the uniserial pit organ lines without a group of short pit organ lines on the lower part of the opercle (Fig.3A).
