Download Trewavas (1935) - The Cichlid Fishes of Lake Malawi ...

On the Cichlid Fishes of Lake Nyasa. 7 9Synopsis of the Species.I. Lips not lobed.A. Diambter of eye 4 to 6 in length of head ; 9 to 11 gill-rakers onlower part of anterior arch.1. Maxillary not reaching vertical from anterior edge of eye.Lower jaw 2t to 23 in length of head .... 1. melanopterms.Lower jaw 2) to nearly 3 in length of head ...... 2. vemivm.2. Maxillary reaching vertical from anterior edge of eye ; lowerjaw 2% to 3 in length of head ....... . 3. brevis.B. Diameter of eye 33 in length of head ; 12 gill-rakers on lowerpart of anterior arch ; maxillary reaching vertical from anterioredge of eye; lower jaw 2% in length of head. 4. prapkax.11. Lips produced into pointed lobes ; diameter of eye 33 in lengthof head ; 13 gill-rakers on lower part of anterior arch ; maxillarynot extending to below eye ; lower jaw 2) in length of head.6. lubrosus.The five species of Melrsnochrontis are all new to science,and all based on specimens in the Christy collection: M. melanopteruson 10 specimens, 76 to 118 mm. in total length, fromMonkey Bay ; M. vermivorus on 25 specimens, 65 to 95 mm.,from Nkudzi ; M. brevis on two specimens, 70 and 120 mm.long, from Nkudzi and Monkey Bay; M. perspicax on asingle specimen of 81 mm. from Deep Bay ; and M. lnbrosuson a single specimen of 54 mm. from Deep Bay.The vertebrae number 15+ 16 in a specimen of M. metanopterusand in one of M. vermivorus, 14+16 in the type ofM. perspicax,Fig. 6.,Genydrmnie mento. Dentition of jaws.9. GENYOCHROMIS, gen. nov.Qenyochromis mento, sp. n. (Fig. 6.)Depth of body 31 to 3& in the length. 6 to 8 series of scaleson the cheek. 8 or 9 gill-rakers on lower part of anterior