Science News: Callichthyidae - Four new Corydoras

[Silurus]

Synopsis by <B>Shane Linder</B>

In the July, 1995 issue of Freshwater and Marine Aquarist magazine, Dr. David Sands describes four new <I>Corydoras</I> species from the Upper Rio Negro, Brazil. The paper contains good color photographs, maps, and line drawings for all the species described. A range extension and discussion of <I>Corydoras bicolor</I> is also presented. This is an interesting paper that should be read by all <I>Corydoras</I> fans.

<I>Corydoras amandajanea</I>: Collected from the Rio Miua system of streams, possibly Uarinabe stream, with dipnets. Found in slow-moving deep water (1.5-3 meters). Standard length to 58.8mm.

<I><A HREF="http://www.planetcatfish.com/ilibrary/c ... /366_f.htm"> Corydoras crypticus</A></I>: Collected from the Rio Miua system of streams, possibly Uarinabe stream, with dipnets. Captured along the riverbank's dense forested edge in shallows (0.5-1 meter). The substrate was sand and leaf litter. Found in mixed schools with <I>C. bicolor</I>. Standard length to 44.9mm.

<I><A HREF="http://www.planetcatfish.com/ilibrary/c ... /379_f.htm"> Corydoras duplicareus</A></I>: Found in the Rio Poranga in a fast stream over a sand substrate. The fish can be easily confused with <I><A HREF="www.planetcatfish.com/ilibrary/callicht ... 1_f.htm">C. adolfoi</A></I>. Standard length to 40mm.

<I><A HREF="http://www.planetcatfish.com/ilibrary/c ... /356_f.htm"> Corydoras serratus</A></I>: Found in the Rio Poranga in a fast stream over a sand substrate. Standard length to 48.8mm. Described from a single specimen.


<B>Reference</B>: Sands, D. 1995. Four new <I>Corydoras</I> (<I>Callichthyidae</I>) species from Upper Rio Negro tributaries and a range extension, together with a discussion of <I>C. bicolor</I> Nijssen & Isbrucker. FAMA Vol. 18 No. 7: 8-18.