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

Jump to next section Cat-eLog Data Sheet
Scientific Name Corydoras ambiacus  Cope, 1872
Common Names Spotted Corydoras
Langsnudet Kravepansermalle (Denmark), Panzerwels (Germany)
Type Locality Río Ambyiacu, Peru.
Synonym(s) Corydoras grafi, Corydoras longirostris
Pronunciation Kory DOOR ass - am bee ACK uss
Etymology Cory = 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. Named for the Rio Ampiyacu in Peru, where the specimen was originally found.
Jump to next section Species Information
Size 65mm or 2.6" SL. Find near, nearer or same sized spp.
Identification Corydoras 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 species was described in 1872 with no picture or drawing and a couple of paragraphs of text. The author notes, "Straw color, with numerous indefinite brown spots on the sides. Dorsal fin with a large black spot covering anterior half, which also expands on the dorsal region round the base of the fin. Four vertical brown bands on caudal fin; anal spotted. Cheeks with blue reflections". In short, it should have no black marking in the top half of the dorsal fin.
Sexing Females 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
Distribution South America: Peru: Rio Ampiyacu
Amazon, Upper Amazon, Ampiyacu (click on these areas to find other species found there)

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pH 6.0 - 8.0
Temperature 21.0-25.5°C or 69.8-77.9°F (Show species within this range)
Other Parameters dH 2-25.
Jump to next section Husbandry Information
Feeding Will 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.
Furniture Shade 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.
Compatibility A peaceful, shoaling, community fish.
Suggested Tankmates All 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.
Breeding Unreported.
Breeding Reports There is but a single breeding report, read it here.
Jump to next section Further Information
References Proceedings of the Academy of Natural Sciences of Philadelphia v 23, pp 280-281.
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Last Update 2018 Nov 08 13:15 (species record created: 2001 Apr 30 00:00)