Chiloglanis

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 : 55

Key to Chiloglanis species from Kenya

1. Usually more than eight mandibular teeth in functional (anterior) row; minimum occipital shield width> 5% SL; eye small, orbit diameter <4% SL.................................................................................2

- Eight or fewer mandibular teeth in functional row; minimum occipital shield width <5% SL; eye larger, orbit diameter> 4% SL.................................................................................................... 3

2. Spines long, dorsal and pectoral spine combined>40% SL; anterior nares distinctly further apart than posterior nares......................................................................... Chiloglanis somereni (Lake Victoria basin)

- Spines shorter, dorsal and pectoral spine combined <36% SL; anterior nares set same distance apart as posterior nares or nearly so........................................................ Chiloglanis devosi (Northern Ewaso Nyiro (Ng’iro))

3. Mandibular teeth elongate (exposed length of teeth into row width once), two rows usually visible, strongly decurved and bunched at symphysis; premaxillary teeth pads ovoid and large with 4–5 rows of teeth (juveniles may have less than 4); oral disc usually as long as wide or nearly so; lateral barbels rarely twice as long as medial barbels............................................................................................ Chiloglanis brevibarbis (Athi and Tana R.)

- Mandibular teeth shorter (exposed length of teeth going into row width more than once); premaxillary pads rectangular and small with less than 4 rows of premaxillary teeth; oral disc usually not as long as wide; lateral barbels usually twice as long as medial barbels........................................................................................4

4. Premaxillary tooth patch length>3% SL and postcleithral process long (>9 % SL)...... Chiloglanis kerioensis (Kerio River)

- Premaxillary tooth patch length <3% SL (if>3% SL, length of postcleithral process <9% SL)......................... 5

5. Short snout (16.9–18.6% SL); oral disc smaller and distinctively wider (14.9–20.4% SL) than long (13.4–16.1% SL); premaxillary teeth pads more rectangular with length (2.4–3.3% SL) with 3 rows of deeply embedded teeth............................................................................................... Chiloglanis deckenii (Pangani R.)

- Moderate snout (18.0–22.0% SL); oral disc larger and slightly more wide (18.2–22.4% SL) than long (16.8–21.2% SL); premaxillary teeth pads more ovoid with length (2.6–3.5% SL) with 3–4 rows of partially embedded teeth...................................................................................... Chiloglanis sp. aff. deckenii (Tsavo River)