Ordre Résumé for Elopiformes
|
Réf. Princ. |
: |
||||||
Ordre |
: |
Elopiformes tarpons and tenpounders |
|||||
Classe |
: |
Actinopterygii |
|||||
Ordre frère |
: |
Albuliformes 140 M years |
|||||
Réf.. |
: |
||||||
Premier signalement fossile |
: |
early Cretaceous |
|||||
Présent dans |
: |
Marin |
Eau douce |
Saumâtre |
|||
Remarque |
: |
Pelvic fins abdominal; body slender, usually compressed; gill openings wide; caudal fin deeply forked; caudal fin with seven hypurals; scales cycloid; mesocoracoid and postcleithra present; gular plate well developed (median); branchiostegal rays 23-35; mouth bordered by premaxilla and toothed maxilla; upper jaw extending past eye; tip of snout not overhanging mouth (mouth terminal or superior); no sensory canal extending onto the small premaxilla. Leptocephali small, maximum length about 5 cm, with a well-developed, forked, caudal fin, a posterior dorsal fin (pelvic fins in older larvae), and about 53-86 myomeres. |
|||||
ClasseÉtymologie |
: |
Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335. |
|||||
OrdreÉtymologie |
: |
Greek, ellops = a kind of serpent + Latin, forma = shape (Ref. 45335). |
|||||
Familles |
: |
Converted to PHP by Kit 06.10.09 |