This species was named the millenium cory because it was the first catfish species to be described in the year 2000. It was in fact described in late 1999, but the date of the journal containing the information was 01/2000. There are 4 other species of cory that may be confused with C. spectabilis at first glance. These are C. guapore, C. ourastigma, C. similis and C. caudimaculatus. They can be distinguished quite easily upon close examination, however. C. guapore, whilst exhibiting similar pat…

This species can be identified from similar-looking congeners by possession of a pair of small rictal barbels.

Its colour pattern can vary considerably depending on collection locality, with some forms having been misidentified as other species in the past. Those possessing a dark marking on the sides of the body are sometimes referred to as Corydoras sp. ‘olga’.

Very similar in appearance to C. gossei, seussi can be distinguished by its less rounded snout. It may also be referred to by its C-number, C027.

There are 2 other species that superficially resemble C. septentrionalis. These are C. simulatus and C. amapaensis. Simulatus differs from septentrionalis by the absence of the third set of small, upper (rictal) barbels, situated behind the other two pairs in both septentrionalis and amapaensis. Amapaensis differs in that it has a clear caudal fin. This fin is noticeably barred in septentrionalis….

A strikingly-patterned cory that has only bred in aquaria quite recently. It's also known as the bannertail cory.

Also known as the network cory, this is one of the commoner species seen in dealers tanks, and is a good cory for the beginner.

This species has a similar patterning to C. sterbai, but lacks the orange pectoral spines of that species. It's rare in the hobby….

The form from the Río Tigre, previously referred to as the subspecies C. p. orcesi (Weitzman & Nijssen, 1970) was raised to full species status as C. orcesi by Isbrücker (2001), but this decision does not appear to have been followed by all authorities some of which consider C. p. orcesi a synonym of C. pastazensis.

The two species are relatively easy to tell apart by colour pattern; in C. pastazensis the dark vertical…

This species may also be referred to by its C-number, C005.

There are 4 other species of cory that may be confused with C. ourastigma at first glance. These are C. guapore, C. caudimaculatus, C. similis and C. spectabilis. They can be distinguished quite easily upon close examination, however. C. guapore, whilst exhibiting similar patterning, has a completely different body shape to ourastigma, having a much more rounded overall appearance. It also tends to spend a lot of time away from the aquarium floor, unlike ourastigma. C. caudimaculatus also has a …