Category: GCKA – Fishes

Anyone who has kept and bred any of the Nothobranchius species is well aware of the vivid colors and the energetic courting displays of the males. But just how do fish select their mates, and what factors influence such decisions? “In general,” says Brian Watters, “Notho females initiate spawning.” This is consistent with observations in…

In October of 1998, Richard Sexton assembled a list of the known species of Rivulus. It is presented here for general information. Note: Codes follow Huber. Due to conflict with Sheel’s codes, the following species codes were changed to follow Huber: bolivianus, compressus, erberi, hartii, rubripunctatus, speciosus, uroflammeus uroflammeus, urophthalmus.Code / Genus and Species AGI   / Rivulus…

One of the few native American killifish to regularly find its way into pet/aquarium shops is the southern American Flagfish, Jordanella floridae.         Flagfish are considered by many to be an ideal beginner’s fish, being undemanding, peaceful, well colored, and with interesting but not necessarily difficult breeding habits.         Even when not in full breeding attire,…

 In a communication on the Killiefish Mailing List (e-mail) in June of 1997, reporting on his trip to Tanzania last year, Barry Cooper commented, “One of the new fish … is of the red-tailed Notho class, but the other will remind you of something you’ve never seen before.” He goes on to describe the male…

North America boasts a number of native killifish species, with habitats that range from fresh to salt water, and from very hot to occasionally downright frigid.         One of the more common species that can be collected from native waters and perhaps not particularly popular because of its easy accessibility is the mummichog, an inhabitant…

“The Fundulus notatus/F. olivaceus issue is fairly well known to American ichthyologists,” says Bruce Turner, “and has attracted attention from several, including Jim Thomerson (who did his dissertation research on the two forms) and Robert Cashner of LSU,” who surveyed their variation and described a third form, F. euryzonas, from the Lake Pontchartrain drainage in Mississippi and Alabama.…

In Our Own Backyards … Fundulus cingulatus         Many aquarists despair when it comes to keeping killifish native to the United States, since many species tend to be rather dull in coloration and uninteresting in either reproductive behavior or personality.         However, Fundulus cingulatus is hardly one of those ordinary brown fishes. F. cingulatus is a moderately sized killifish, with…

  With the ever-changing knowledge about killifish in general and the relationship of one species to another has come a continually changing litany of names. Fish that were once known as Roloffias are now known as Aphyosemions, for example, and some of the Nothobranchius have been redesignated as Simpsonichthys         In an effort to clarify some of the confusion, in May…

E. chaperi was first described and named in 1882 by H. E. Sauvage, who based his description on specimens collected by M. Chaper near Couracrou, in the eastern part of the Gold Coast (today the Ivory Coast). However, due to a misidentification by G. A. Boulenger, the species was for some time confused with E. dageti Monroviae, which…

Cynolebias Check List In June of 1998, Richard Sexton compiled and refined a tentative list of the known species for the Cynolebias genus. It is presented here for general information. Code Subgenus Species ADL   adloffi AFI   affinis ALB Cynolebias albipunctatus ALT   alternatus ALX   alexandri ANT Nomen nudum antenori BLL   bellottii BOI (Simpsonichthys) boitonei…