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Paracheirodon axelrodi (SCHULTZ, 1956)

Cardinal Tetra

March 13th, 2012 — 1:18pm

It was initially going to be described as Hyphessobrycon cardinalis by Myers and Weitzman (1956) but just before this was due to be published Schultz presented an alternative description in the hobbyist magazine ‘Tropical Fish Hobbyist’ and named the fish after the publication’s founder, Dr. Herbert R. Axelrod.

A significant proportion of the fish available in the aquarium trade are still wild caught or derive from community-led breeding projects such as Project Piaba in the middle Negro region, where this sp…

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Mikrogeophagus ramirezi (MYERS & HARRY, 1948)

Ram

March 13th, 2012 — 1:18pm

M. ramirezi is also known by the names ‘Ramirez’ dwarf cichlid’ and ‘butterfly cichlid’ and is among the more popular dwarf cichlids in the aquarium hobby.

As a result, it is produced on a commercial basis in huge numbers and a number of ornamental strains have been developed including ‘gold’, ‘long-finned’ (both blue and gold forms; also traded as ‘lyre-tail’, ‘veil-tail’ and ‘hi-fin’), ‘electric/neon blue’, ‘super neon blue gold’ ‘pearl/perlmutt’ and ‘balloon’.

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Brachyplatystoma juruense (BOULENGER, 1898)

Gold Zebra Catfish

March 13th, 2012 — 1:18pm

Brachyplatystoma spp. are distinguished from all other catfishes by two synapomorphies. The first comprises several morphological characters relating to the skull, specifically that the mandibular suspensorium (that which connects the lower jaw bone to the skull) is greatly expanded mediodorsally to form a large plate approaching the parasphenoid bone, with the hyomandibula and metapterygoid similarly enlarged.

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Satanoperca daemon (HECKEL, 1840)

Threespot Eartheater

March 13th, 2012 — 1:18pm

S. daemon is relatively common in the aquarium trade but is by no means easy to maintain, with particular attention to space, diet, water quality, and chemistry required in order for it to thrive.

It can be distinguished from other members of the genus by possessing two dark blotches on the flank and a prominent ocellus at the caudal-fin base. Among the named species it is most similar to…

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