Acanthostracion polygonium Poey, 1876
Honeycomb cowfish
Baiacu-de-chifre,  Peixe-cofre,  Peixe-vaca
Acanthostracion polygonium
photo by NOAA\NMFS\Mississippi Laboratory

Family:  Ostraciidae (Boxfishes)
Max. size:  50 cm TL (male/unsexed); max.weight: 152.4 g
Environment:  reef-associated; marine; depth range 3 - 80 m
Distribution:  Western Atlantic: New Jersey, USA and Bermuda to Brazil, including the Caribbean and Antilles. Occurs in the Gulf of Mexico, off Florida, 25° 16'N, 83° 37'W (Ref.78464).
Diagnosis:  Bold pattern of hexagons outlined by narrow dark lines; centers and areas between hexagons pale (Ref. 26938). Purplish blue on sides and ventrally (Ref. 13442).
Biology:  Occurs in clear water around coral reefs. Feeds on sponges, alcyonarians, tunicates, and shrimp. Uncommon and wary (Ref. 9710). Consumed fresh, generally roasted (Ref. 5217).
IUCN Red List Status: Least Concern (LC); Date assessed: 07 June 2011 Ref. (130435)
Threat to humans:  reports of ciguatera poisoning
Country info:  Occurs in southeastern Brazil (Ref. 36453), from Espírito Santo to São Paulo, including Manuel Luiz Reefs and Atol das Rocas (Ref. 57756). Traded as an aquarium fish at Fortaleza, Ceará (Ref. 49392). Also Ref. 7251, 35505. Caught by shrimp trawl in Pirambu, Sergipe (Ref. 118626).


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