Description

This species is distinguished from G. australis by having a second dorsal fin connected with the caudal fin by a low skin fold (vs. separate), and by the position of the cloaca posterior to the origin of the second dorsal fin in immature and mature adults (cloaca anterior to or under the origin of the second dorsal fin); while the position of fins and cloaca of mature G. macrostoma remains similar to that of juvenile and sub-adults, in spawning adults of G. australis the separation between the second dorsal fin and the caudal fin becomes reduced to a notch (Ref. 125560).

Common Names

Taxonomic Hierarchy

Kingdom: Animalia

Phylum: Chordata

Class: Petromyzonti

Order: Petromyzontiformes

Family: Geotriidae

Genus: Geotria

Species: Geotria macrostoma (Burmeister, 1868)

Climate Zone

Biology

Length of sub-adult individuals 41.2-62.9 cm TL (Ref. 125560).

Habitat

brackish

Conservation Status

Least Concern

Threat to Humans

No Data