Alternative name Rivulus (Oditichthys) bibosi.

Originally described as Anablepsoides bibosi, from a stream in central Bolivia, in the Rio Chapare drainage, a tributary of Rio Mamoré, Amazon basin. The new species is a member of the A. limoncochae species group and differs from all the other species of this assemblage by its unique colour pattern and some morphological differences.

A large number of species formally in Rivulus was grouped in the then erected genus Anablepsoides (Costa 2011) originally a subgenus erected for a single taxon only, Rivulus atratus. (Huber 1999). On this platform Anablepsoides bibosi alternatively remains in the genus Rivulus and the subgenus Oditichthys. We, for the time being, prefer the conservative approach and follow Huber and Killi Data in this matter till the issue is cleared.

Diagnosis: Males can be distinguished from all other species of the R. limoncochae species group by their anal fin pattern, consisting of a sub-basal row of red, closely-set dots forming stripes and a black fin margin (vs. absence, or if present, in reduced number and well separated). Rivulus bibosi can be distinguished from the members of R. limoncochae species group occurring in the rio Madeira basin as follows: from R. chapare by possessing 47- 49 scales on longitudinal series (vs. 43-44), by dorsal fin origin above base of the 10th or 11th anal-fin ray (vs.12th-13th anal fin ray), and by males presenting pelvic fin yellow on distal portion (vs. light blue); from R. christinae by having 47-49 scales on longitudinal series (vs. 38-41), by having 18-20 scales around caudal peduncle (vs. 17-18) and by males presenting black margins on unpaired fin (vs. dark margin hardly visible); from R. luitalimae by presenting 47-49 scales on longitudinal series (vs. 43- 44), 9 dorsal-fin rays (vs. 7), 29 caudal and 15 pectoral- fin rays (vs. 26-28 and 12, respectively), a reduced number of pelvic-fin rays (6 vs. 7) and by a distinct dorsal fin proximal portion coloration in males (whitish vs. pale yellow); from R. parlettei by presenting 47-49 scales on longitudinal series (vs. 37-40) scales and by 26-28 caudal-fin rays (vs. 24) and by males with red stripes on sides (vs. irregularly striped to dotted pattern); from R. lineasoppilatae by presenting 47-49 scales on longitudinal series (vs. 36-39), dorsal fin origin above base of the 10th or 11th anal-fin ray (vs. 7th-8th anal-fin ray) and by males with red stripes running from humeral region to caudal peduncle (vs. starting from the area posterior to pectoral fin); from R. hoetmeri by presenting more pectoral-fin rays 15 (vs. 14), scales on longitudinal series 47-49 (vs. 42-44), by having 18-20 scales around caudal peduncle (vs. 16) and by males having seven thin longitudinal stripes on caudal peduncle (vs. by six lines, three of which interrupted at the level of anal fin origin), dorsal fin with white coloration at proximal portion (vs. white with golden patch); and from R. taeniatus by presenting more scales on longitudinal series 47-49 (vs. 38-40), and by less pelvic-fin rays (6 vs. 7). Females can be distinguished from females of the other species of the R. limoncochae species group by the reduced black spot on upper portion of caudal-fin base (vs. broad black spot). 

Keeping and breeding is easy but a good cover of the aquarium is necessary because there ability to jump, even true the smallest opening, is unbelievable.

This species can, if there is enough space for them, housed in a tank with more males than one only and several females. If separated before and brought together again however, they can be very agressive to each other and fight to become dominant to others. The best way to have much offspring is to put a pair or an trio in a small tank from 10 liters with a small filter in it or with some airation. On the bottom some peat moss or dark gravel and a floating "mop" to give space for laying there eggs. The fish will, if they become a rich varity of life food, spawn during there whole adult life and produce daily between 5 to 15 eggs.

The eggs should be collected by hand and stored for about 14 days in a small container. Eggs are 1.6 mm and amber colored. It is wise, to add to the water you store the eggs in, some acryflavine to provent fungus coming up.

After hatching the young fry can eat fresh artemia nauplii without any problem. It takes 4 to 5 months to raise them to maturity. Often the number of males is far above the number of females. For some species this can become a major problem for the breeder as he has to raise many young fishes and so become able to distribute a few pairs to other hobbyists. Recent personal tests laerned that lower pH levels during the time of hatching gave a higher percentage of females. To achieve this I use some peat moss that I add to the container with the egss just before they are ready to hatch. This peat moss also is a good way to prevent eggs to become attact by fungusses.

There lifespan can be up to 3 years in captivity.

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Valdesalici, S. & J.R.G. Gil. 2019. A new killifish from central Bolivia: Anablepsoides bibosi (Cyprinodontiformes: Rivulidae).
Aqua, Journal of Ichthyology and Aquatic Biology, 25 (4): 149-154.