Cat-eLog Right Arrow Callichthyidae Right Arrow Corydoradinae Right Arrow Corydoras

Jump to next section Cat-eLog Data Sheet
Scientific NameCorydoras orphnopterus  Weitzman & Nijssen, 1970
Common Name(s)
Type LocalityLower Río Bobonaza between Montalvo (2°06'S, 76°59'W) and Chicherota (2°22'S, 76°38'W), Ecuador.
PronunciationKory DOOR ass - orf NOPP terr uss
EtymologyCory = helmet, doras = skin. In this case it was incorrectly used to mean armour (cuirasse) instead of skin in allusion to the dual rows of plates that run along the flanks of this genus. This specific epithet refers to the dark (orphnos=dark) spot on the dorsal fin (pteron=wing or fin).
Jump to next section Species Information
Size 70mm or 2.8" SL. Find near, nearer or same sized spp.
IdentificationCorydoras are identified by their twin rows of armour plates along the flanks and by having fewer than 10 dorsal fin rays. They are most commonly confused with the other genera in the sub-family, namely Brochis, Scleromystax and Aspidoras.

This spotted species also has a dark blotch in the dorsal fin, characterisitic for this species is the fact that this blotch does not extend to either side of the dorsal fin or the upper body. The blotch is contained wholly within the otherwise translucent fin.
SexingFemales grow larger and are more full-bodied, this is best observed from above the fish. Males will typically have more pointed as opposed to more rounded fin tips as they mature.
Jump to next section Habitat Information
DistributionSouth America: Ecuador/Peru: Rio Pastaza
Amazon, Upper Amazon, Marañón, Pastaza (click on these areas to find other species found there)
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Temperature20.0-24.0°C or 68-75.2°F (Show species within this range)
Jump to next section Husbandry Information
FeedingWill accept a wide range of commercial foods including tablets, granules and flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm, Daphnia and tubifex are readily accepted.
FurnitureShade provided by overhanging rock work, arching bogwood, tall or floating plants are all that is required. Ideally substrate should be sand, but rounded gravel is an imperfect alternative. Avoid keeping over rough edged (chipped) gravel, this will increase this risk of damage the fishes barbels when it tries to dig.
CompatibilityA peaceful, shoaling, community fish.
Suggested TankmatesAll Corydoras should be kept in groups of at least 6 of the same species. Otherwise compatible with most other types of fish that are reasonably peaceful, as long as they don't see a Corydoras as a snack.
BreedingUnreported.
Jump to next section Further Information
ReferencesBeaufortia v. 18 (no. 233) - pp125 - Fig. 3
Registered Keepers(1) Coryman, (2) JustKia, (3) Mark Roesner.

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Breeding ReportsNone.
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Last Update2010 Apr 22 04:45 (species record created: 2001 Apr 30 00:00)