Chiloglanis brevibarbis Boulenger 1902

Schmidt, Ray C., Bart Jr, Henry L. & Nyingi, Wanja Dorothy, 2015, Two new species of African suckermouth catfishes, genus Chiloglanis (Siluriformes: Mochokidae), from Kenya with remarks on other taxa from the area, Zootaxa 4044 (1), pp. 45-64: 60

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Chiloglanis brevibarbis Boulenger 1902


Chiloglanis brevibarbis Boulenger 1902 

Described from the Tana River basin, Chiloglanis brevibarbis  occurs throughout the Athi and Tana River basins in Central Kenya ( Fig. 1View FIGURE 1). This species in found in a variety of habitat types, although it is usually associated with or near flowing water. Most commonly utilized habitats are rocks and small boulders in flowing water, this species is also found near woody debris or exposed roots along the river bank. In the Athi River at Kibwesi, 141 specimens were collected in emergent stands of vegetation in the middle of the sandy channel.

Chiloglanis brevibarbis  is the only species of Chiloglanis  throughout its range except in the Tsavo River and potentially in other streams of the middle Athi. In the Tsavo River this species is sympatric with an undescribed Chiloglanis  sp. that is sister to C. deckenii  from the Pangani River. Chiloglanis brevibarbis  is distinguished from other Kenyan species in having fewer mandibular teeth, exposed length of mandibular teeth greater than row width, and in possessing 4–5 rows of well-developed premaxillary teeth in large ovoid tooth pads ( Fig. 6View FIGURE 6). Morphological variation is observed between Athi and Tana River populations ( Fig. 2View FIGURE 2, also noted in Whitehead 1958) though biotic dispersal events in the upper reaches of the drainages have likely contributed to admixture between the populations resulting in incomplete lineage sorting ( Schmidt et al. 2014). Little is known of ecology and life history of this species. Morphometric measurements and meristic counts of C. brevibarbis  populations are found in Table 4.