Chapter: The Diversity of Fishes: Biology, Evolution, and Ecology: Teleosts at last II:spiny-rayed fishes

Suborder Stromateoidei

Stromateoids are generally tropical and warm temperatefishes of the open sea that often associate as juveniles with floating or swimming objects, particularly with siphonophores and jellyfishes.

Suborder Stromateoidei

Stromateoids are generally tropical and warm temperatefishes of the open sea that often associate as juveniles with floating or swimming objects, particularly with siphonophores and jellyfishes. A characteristic of the suborder is a thick-walled sac in the pharyngeal region that contains“teeth” made from hardened papillae. Centrolophidmedusafishes bear a superficial resemblance to the icosteidragfish. Nomeid driftfishes, as the name implies, hover around and under floating logs, siphonophores, jellyfishes,and seaweed as juveniles and occur in deeper water as adults. Juveniles of the Man-of-war Fish, Nomeus gronovii,live with impunity amongst and even feed on the stingingtentacles of the Portuguese man-of-war. Ariommatids are superficially similar to the carangid scads (i.e., Decapterus).The tetragonurid square tails are round fishes encircled by ridged scales and with a long caudal peduncle that has a single keel on either side formed from scale ridges.They feed on pelagic cnidarians and ctenophores whichthey bite with specialized knife like teeth. Stromateid butterfi shes and harvestfishes are round or elliptical in profile with a forked tail and are similar in shape to some carangids;they are sometimes referred to as pompanos, a namemore correctly applied to several carangids. As with many open sea groups, butterfishes lack pelvic fins as adults (for unknown reasons).

 

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The Diversity of Fishes: Biology, Evolution, and Ecology: Teleosts at last II:spiny-rayed fishes : Suborder Stromateoidei |


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