Glossary: species
Taxonomic rank into which a genus is divided, but otherwise difficult to delineate precisely with a single definition satisfying all eventualities still lacking to date.
There exist a number of concepts of which the most popular in vertebrate taxonomy include the biological species concept and phylogenetic species concept.
Biotodoma cupido (Cupid Cichlid)
Hi, in the paper by Cichocki, F.P., 1977 did he observe the parents spawning in a pit? or did he see fry being held in a pit by the parents? my exper...
19th May 2013
Otocinclus macrospilus – Oto
Hi Danny the site is still very much a work in progress and we simply haven't got around to covering Otocinclus properly yet. It'll get done eventuall...
13th May 2013
Otocinclus macrospilus – Oto
Why aren't there any other profiles for other Otocinclus species on this site? ('cept for Cocoma) The O. vittatus is one that's in stores a lot, at le...
13th May 2013
Desperate search for Ptychochromis insolitus
Sad story - again. This species can actually be seen in a very short video clip I filmed last year at the Aquarium at the ZSL London Zoo. http://ww...
12th May 2013
Xenentodon cancila (Needlefish)
sure!
7th May 2013