Small goby (a family of small fishes with a notorious reputation of
being difficult to differentiate, characterised by a pair of dorsal fins,
and a pelvic fin fused into a weak suction cup).
Sandy colour but longer* than the similar species Pomatoschistus
microps. In breeding
coloration the male fish has a occelated spot at the rear of the first
dorsal fin. This spot is ringed with white. Only experienced rockpoolers
are likely to be able to separate these species in the wild.
*distance from the last second dorsal fin ray to the tail fin is proportionately
greater than in P.microps.
The eyes are more on top of the head in the Sand Goby, but the difference
is only apparent when this fish and the Common Goby are compared side by
Common Goby, Pomatoschistus microps.
Summer. Eggs laid under small rocks and shells. Male guards the eggs.
Life span 15 - 18 months only (could be longer).
Habitat: Sandy shallows, intertidal
with shallow sandy pools, estuaries in autumn.
Small crustaceans like caprellids, Corophium spp., worms.
All British coasts.
are difficult to identify. Photographs in books cannot be relied upon because
the identifications of British species are wrong over 50% of the time.
Differences between Blennies & Gobies
Shorewatch Project EMail
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