Another species of African tetra has been described from the Congo River drainage in a recent issue of the journal Ichthyological Exploration of Freshwaters.
Armel Zamba and Emmanuel Vreven name the new tetra Rhabdalestes yokai, after Paul Yoka.
Rhabdalestes yokai is distinguished from congeners by the number and shape of its teeth, a complete lateral line with 25"26 pored scales, number of scale rows above the lateral line, number of anal-fin rays and rakers on the lower limb of the first gill arch.
Some of the specimens were caught in schools, implying that this form of behaviour is characteristic of the genus.
For more information, see the paper: Zamba, AI and E Vreven (2008) Rhabdalestes yokai (Characiformes: Alestidae), a new species from the Lfini and Sangha River basins (Congo River basin), Africa. Ichthyological Exploration of Freshwaters 19, pp. 377"384.