Roundspot Frogfish in Ao Nang

Antennarius sanguineus Gill, 1863

Roundspot Frogfish
Roundspot Frogfish

Sanguine frogfish, Bloody frogfish

Body globular, somewhat compressed; “fish-pole” length about equal to length of second dorsal spine, “lure” an elongate, tapering appendage with slender filaments and a cluster of darkly pigmented round swellings at base; second dorsal spine strongly curved and free, not connected to head by membrane; 3rd  dorsal spine movable, not bound down by skin; a very large, upward directed mouth; limb-like pectoral fins with an “elbow” joint, that fin broadly connected to body; a small round gill opening, below and behind pectoral base; with a short tail base; pelvic fins short; skin of body rough, covered with close-set, double-pointed spicules.

Yellow or yellow brown to reddish with brown spotting and mottling; belly with conspicuous brown spots; sometimes a weak ocellus or dark round spot below posterior part of dorsal fin.

Size: attains 10 cm.

Habitat: rocky bottoms.

The most common frogfish in the eastern Pacific.

Depth: 1-40 m.

Gulf of California to Chile; Revillagigedos, Clipperton, Cocos, Malpelo and the Galapagos.

Note: Recently move to the genus Antennatus.

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