Daector quadrizonatus

Common Name

Atrato Toadfish

Year Described

Eigenmann, 1922


Dorsal Fin: II, 23-25
Anal Fin: 22-24
Pectoral Fin: 15-16
Pelvic Fin: I, 2-3
Vertebrae: 8 precaudal, 24-26 caudal

Dorsal spines (2) hollow and venomous. The base of the uppermost pectoral fin rays has 2-3 pored glands. Head large and dorso-ventrally flattened. Lateral line distinct. Eyes relatively large.


Light brown with five dark saddle markings on the body. Larger specimens with darker dorsum anteriorly obscuring first two saddles. Pectoral and caudal fins with dark spots. Anal fin with a dark stripe down the middle of the fin.


Maximum size to 180mm SL.


Freshwater riverine in clear waters with unvegetated bottom. Benthic


Rio Atrato in Colombia.


Collette, B.B. 1973. Daector quadrizonatus, a valid species of freshwater venomous toadfish from the Río Truandó, Colombia with notes on additional material of other species of Daector. Copeia 1973(2): 355-357.

Other Notes

Included as it evolved from marine ancestors.

Relatives of this species are eastern Pacific endemics, so it was likely that the population in the Atlantic drainage was isolated on the Atlantic Slope when it’s tributary was captured by the Rio Atrato during the tectonic uplifts in the region millions of years ago (Collette, 1973).