This fish may be synonymous with the congener A. castaneum.

Collected for the aquarium hobby in 1991 from close to the town of Oyo, Cuvette department, Republic of the Congo. The town lies on the Alima River, a right bank tributary of the middle Congo system.

This species occurs in a couple of colour forms with fish from northern and central Taiwan possessing a greyish base body colour and those from the Linbian river, southern Taiwan having a dark marking in the anterior portion of the first dorsal fin and larger, more intense red spots on the body.

The latter form is also smaller in size, lays smaller eggs, does not exhibit extreme sexual dimorphism and has been refe…

…

Described from Assinie-Mafia in south-eastern Côte d’Ivoire (Ivory Coast), western Africa but currently accepted to be extensively distributed in coastal river drainages of central western Africa from the Saint John River, central Liberia to the Cross River drainage, in southeastern Nigeria and southwestern Cameroon. It also occurs in the Niger and its major tributary the Benue (Bénoué) and has thus been recorded from Benin, Burkina Faso, Cameroon, Côte d’Ivoire, Equatorial Guinea, Ghana, Guinea, Liberia, Mali, Niger, Nigeria and Togo.

The German term 'breitbinden' translates literally as "broad-banded" and refers to the uniformly broad suborbital stripe seen in males of this 'species' which remains undescribed despite being known in the aquarium hobby for several decades. It's often imported as bycatch among shipments of wild-collected A. iniridae.

Some of the populations have also been assigned th…

Juvenile specimens were first exported for the aquarium hobby during 2009 and have since been available on a sporadic basis with prices generally reflecting its rarity and, hopefully, number of specimens being collected. The striking black-and-white-striped juvenile colour pattern inspired the vernacular name although it’s sometimes labelled as ‘panda goby’ rather than ‘panda loach’.

This undescribed species is also traded as C. sp. 'ndoboi' or 'ndobnoi', and despite its lack of official recognition it's the most commonly-encountered member of the genus in the aquarium trade at time of writing. It can be easily-distinguished from the congeners C. brichardi and C. popelini by its adult body patterning which comprises two or three series of irregular, dark, laterally-orientated blotches, the upper of which is often contained entirely within the dorsal …

At time of writing there exists no scientific evidence that the different populations of this species seen in the aquarium trade (see 'Distribution') represent anything other than a single, widely-distributed species although some exibit minor morphological differences including relative body depth, longer fin rays in the unpaired fins and yellow or orange colouration in the paired fins. There is apparently a form from the upper rio Negro which may turn out to be distinct but it's…

Populations known in the aquarium trade include ‘Cuao’, ‘Orinoco’, ‘San Antonio’, and ‘Sipapo Ventuari’.

B. wavrini and its congener B. cupido can be separated by body shape and position of the dark blotch on the posterior portion of the flank. In B. cupido the body is relatively compact and the blotch located above the upper lateral line, whereas in B. wavrini the body is noticeably elongate and the blotch on or below the upper lateral line.

This apparently undescribed species was traded as 'Aequidens' sp. 'Orinoco' but following Musilová et al. (2009) appears to be a member of the genus Andinoacara.