LOGIN

RSS Facebook Twitter YouTube
GLOSSARY       

SEARCHGLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PROFILESEARCH

Carnegiella myersi FERNANDEZ-YEPES, 1950

Pygmy Hatchetfish

January 19th, 2015 — 1:38am
Robert Beke

The smallest and most delicate of the nominal hatchetfishes. The rounded keel is shallower than related species, giving this fish a distinctive elongate profile.

The family Gasteropelecidae is separated from other Characiformes by the following combination of characters: front…

Comment » | Category: ,

Carnegiella marthae MYERS, 1927

Blackwing Hatchetfish

May 13th, 2013 — 4:36pm
Hristo Hristov

Gasteropelecids are commonly-referred to as ‘freshwater hatchetfishes’ due to their heavily-keeled body shape which has evolved in such a way due to possessing an enlarged, heavily-muscled pectoral girdle, and which resembles the shape of a hatchet head.

They are sometimes said to be capable of propelled flight above the water surface by beating their pectoral fins but in fact this is not the case and was disproven by Wiest (1995) who used…

Comment » | Category: ,

Gasteropelecus sternicla (LINNAEUS, 1758)

Common Hatchetfish, Silver Hatchetfish

March 13th, 2012 — 1:23pm
Chor Kiat Yeo

This species spends almost all of its time at or just below the water surface, although it will sometimes retreat into midwater if threatened or feeding. Like other freshwater hatchetfishes, it is renowned for its ability to leap from the water surface and glide for distances of several metres. This behaviour is used both to catch flying insects, and to escape potential predators.

Comment » | Category: ,

Thoracocharax stellatus (KNER, 1858)

Spotfin Hatchetfish

March 13th, 2012 — 1:23pm
Brian Gratwicke

T. stellatus is superficially similar to its only congener T. securis, but can immediately be identified by the presence (vs. absence) of a prominent dark spot in the dorsal-fin. It is sometimes traded as ‘platinum hatchetfish’.

The genus Thoracocharax was originally erected by Fowler in 1906 as a subgenus of Gasteropelecus, but was elevated to generic status by Weitzman (1960).

Comment » | Category: ,

Carnegiella strigata (GÜNTHER, 1864)

Marbled Hatchetfish

March 13th, 2012 — 1:23pm
Hristo Hristov

C. strigata is an enduringly popular species in the aquarium hobby but is not bred on a commercial basis with all fish offered for sale collected in the wild.

It can be told apart from other members of the genus by its larger adult size and dark, marbled colour pattern appearing as a series of dark and light stripes running diagonally across the body below the lateral line.

This colour pattern is variable and popul…

Comment » | Category: ,

Gasteropelecus levis (EIGENMANN, 1909)

Silver Hatchetfish

March 13th, 2012 — 1:23pm
Hippocampus-Bildarchiv

Gasteropelecids are commonly-referred to as ‘freshwater hatchetfishes’ due to their heavily-keeled body shape which has evolved in such a way due to possessing an enlarged, heavily-muscled pectoral girdle, and which resembles the shape of a hatchet head.

They are sometimes said to be capable of propelled flight above the water surface by beating their pectoral fins but in fact this is not the cas…

Comment » | Category: ,