Tag: Ornate Goby (Istigobius Ornatus)

The Ornate Goby (Istigobius Ornatus) is a common Goby in local waters, found at almost all of the shallower sites, in their preferred habitat of sandy/rubble flats close to coral reefs.

This is one of at least 2 - 3 local species of very similar appearance. This often makes it difficult to positively identify the species during the encounter, thereby making a review of photographs the best way to confirm the species.

The two other locally occurring species which share a similar physical appearance are the Decorated Goby (Istigobius Decoratus) and the Canine Goby (Oplopomus Caninoides).

On close inspection, the Ornate Goby can be most easily distinguished from its similar relatives by the presence of a yellowish-tipped first dorsal fin.

Other, less obvious characteristics include rows of black, horizontal dashes on a pale gray body, five rows of small white spots on the pectoral fins, and small blue and redish/brown interspersed spots on the cheek area.

The Ornate Goby grows to a maximum length of just over 10cm and, in common with its &lquo;sand-sifter&rquo; relatives, has a diet consisting mainly of tiny invertibrates filtered from the sand through specialized gill-rakers.

The Ornate Goby (Istigobius Ornatus) is a common Goby in local waters, found at almost all of the shallower sites, in their preferred habitat of sandy/rubble flats close to coral reefs.

This is one of at least 2 - 3 local species of very similar appearance. This often makes it difficult to positively identify the species during the encounter, thereby making a review of photographs the best way to confirm the species.

The two other locally occurring species which share a similar physical appearance are the Decorated Goby (Istigobius Decoratus) and the Canine Goby (Oplopomus Caninoides).

On close inspection, the Ornate Goby can be most easily distinguished from its similar relatives by the presence of a yellowish-tipped first dorsal fin.

Other, less obvious characteristics include rows of black, horizontal dashes on a pale gray body, five rows of small white spots on the pectoral fins, and small blue and redish/brown interspersed spots on the cheek area.

The Ornate Goby grows to a maximum length of just over 10cm and, in common with its &lquo;sand-sifter&rquo; relatives, has a diet consisting mainly of tiny invertibrates filtered from the sand through specialized gill-rakers.

Alan's picture
Ornate Goby (Istigobius Ornatus)

An Ornate Goby (Istigobius Ornatus) from a slightly more front-viewed position, again showing the main distinguishing feature, the yellow-tipped first dorsal fin.
Also clear in this shot are the small white spots on the dorsal fins and the blue and red-ish/brown spots on the cheek area.

Alan's picture
Ornate Goby (Istigobius Ornatus)

This profile shot clearly shows most of the distinguishing features of the Ornate Goby (Istigobius Ornatus), particularly the yellowish-tipped first dorsal fin.