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

publication ID

http://dx.doi.org/10.11646/zootaxa.4044.1.2

publication LSID

lsid:zoobank.org:pub:9E1A791F-650C-4ED8-AEB1-6325B1FB3409

persistent identifier

http://treatment.plazi.org/id/03BC87F4-873A-A96A-FF02-FAE4FA4CF82A

treatment provided by

Plazi

scientific name

Chiloglanis
status

 

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)