Canthigaster solandri
FAMILY
Tetraodontidae
TAXONOMY
Canthigaster solandri Richardson, 1845, Polynesia.
OTHER COMMON NAMES
English: Spotted sharpnose puffer.
PHYSICAL CHARACTERISTICS
Oblong and stocky body, with a pronounced snout, prickles on
the belly, a rounded caudal fin, and the ability to inflate itself
with water. Color is orangish red with blue spots over much of
the body and on the orange caudal fin. The ventral surface is
white. There is a black spot ringed in pale blue directly below
the base of the dorsal fin. The dorsal fin is white, with a black
base, and has eight to 10 soft rays. The anal fin also has eight
to 10 soft rays. Some geographical variation in color pattern.
The skin contains tetraotoxin. Grows to at least 4.3 in (11 cm)
in total length.
DISTRIBUTION
Tropical and subtropical waters of the Indo-West Pacific from
East Africa east to the Tuamotu Archipelago, south to the
Great Barrier Reef and New Caledonia, and north to the
Ryukyu Islands of southern Japan. Reportedly strays to the
Hawaiian Islands.
HABITAT
Mainly coral reefs on reef flats, lagoon patch reefs, and seaward
reefs. Depth range is 3.3–118 ft (1–36 m).
BEHAVIOR
Usually paired but also solitary or in groups. Swims over a
home range, inspecting potential food items; also swims up in
the water column. Some territorial interactions, as well.
FEEDING ECOLOGY AND DIET
Omnivorous, feeding on tunicates, bryozoans, echinoderms,
crustaceans, mollusks, polychaete worms, corals, coralline red
algae, green algae, and red algae.
REPRODUCTIVE BIOLOGY
Paired spawning of demersal eggs on algae growing on dead
coral, rocks, or other substrata. The eggs are poisonous, and
parental care is not practiced. The larvae are pelagic.
CONSERVATION STATUS
Not listed by the IUCN.
SIGNIFICANCE TO HUMANS
Collected for the aquarium trade.
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