. Bulletin of the British Museum (Natural History) Zoology. Fig. 3. Pelmatochromis multiocellatus Blgr. Holotype; mm. From Boulenger (1915).. Fig. 4. Pelmatochromis darlingi Blgr. Holotype; mm. From Boulenger (1915). has stout and blunt pharyngeal teeth' (cf. small, compressed and hooked according to Regan), and thought that the species should be treated as a synonym of Haplochromis darlingi. In the same year Barnard (1948a: 447) repeated his doubts, and listed T. rumsayi (again preceded by an interro- gation mark) as a synonym of H. darlingi in a key to the species of that genu
. Bulletin of the British Museum (Natural History) Zoology. Fig. 3. Pelmatochromis multiocellatus Blgr. Holotype; mm. From Boulenger (1915).. Fig. 4. Pelmatochromis darlingi Blgr. Holotype; mm. From Boulenger (1915). has stout and blunt pharyngeal teeth' (cf. small, compressed and hooked according to Regan), and thought that the species should be treated as a synonym of Haplochromis darlingi. In the same year Barnard (1948a: 447) repeated his doubts, and listed T. rumsayi (again preceded by an interro- gation mark) as a synonym of H. darlingi in a key to the species of that genus (Barnard op. cit.: 453). I would certainly agree with Barnard's action since I cannot accept Regan's differentiation (or at least partial differentia- tion) of H. acuticeps from H. darlingi on the basis of differences in their pharyngeal dentition. The median pha- ryngeal teeth in the lectotype of Chromis acuticeps (from an unknown locality in Angola) are comparable both with those in Pelmatochromis darlingi holotype and with most other specimens previously identified as Haplochromis or Pharyn- gochromis darlingi from the Zambezi and Okavango systems. Furthermore, Regan's other diagnostic criterion for separat- ing darlingi from acuticeps (the former's greater posterior extension of the maxilla) no longer holds when large samples are examined, and indeed barely holds when the types of the two taxa are compared. Barnard's synonymy was accepted by later workers (Jack- son, 1961; Jubb, 1967; Jubb & Gaigher, 1971; Skelton et al., 1985). The reason for my uncertainty about including T. rumsayi is the doubts I have about the validity, as Gilchrist & Thompson's holotype, of the specimen thought to have that status; viz specimen NMZB. 0711 from the National Muse- ums of Zimbabwe's collection. This fish is in excellent condition; it is accompanied by a label marked 'Holotype' and bearing the legend "Hap- lochromis darlingi, December 1914, Upper Zambezi River just above th
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