FISHES FROM LAKE TAI^GANYIKA MYERS 11 



may well be a new form close to /S. hdbaulti, or perhaps the young 

 of S. diagramma; they are certainly not any other cichlid yet re- 

 ported from Tanganyika. 



STAPPERSIA SINGULARIS Boulenger 



One specimen, U.S.N.M. no. 84110, 40 mm in standard length, was 

 collected at Kigoma. Dorsal XIV-13. Anal III-IO. Lateral scales 

 to end hypm-al fan 37. Upper lateral line 26, lower 11. Gill rakers 

 9 blunt, rounded knobs on lower limb of first arch, and one short, 

 slender raker on upper limb between the angle and the superior 

 fleshy lobe. Color pale brownish. This example agrees in most 

 characters with the accounts of Boulenger (1915, p. 450, and 1920, p, 

 53) and of Kegan (1920a, p. 47), but the low soft anal count is 

 notable. 



Besides the two types described by Boulenger, I find only one 

 other record of the capture of this rare fish (Pellegrin, 1927, p. 500).^ 

 The elongate inner pelvic rays form a notable modification shared, 

 among cichlids, only with two other genera, Xenotilaipia and Enan- 

 tiopus, both also from Tanganyika. 



TELMATOCHROMIS TEMPORALIS Boulenger 



Seven specimens, U.S.N.M. no. 84126, 26.5 to 50 mm in standard 

 length, are from Kigoma; one of these is now in the British 

 Museum. The other six show the following counts (given in de- 

 creasing order of size of examples) : Dorsal XXII-7, XXII-7, 

 XX-7, XX-7, XX-7, XX-7. Anal VI-6, VI-6, V-7, VI-6, VI-6, 

 V-6. Lateral lines 25 + 2, 23 + 5, 26 + 6, 24 + 5, 22 + 4, 22 + 3. Lat- 

 eral scales 34, 33, 36, 33, 33, 33. 



Dr. Trewavas has been so kind as to compare one of the Kigoma 

 fish with the types and other specimens of T. tenvporaJis in the 

 British Museum. She remarks that my fish has a smaller mouth 

 than any in the British Museum. At my request she also examined 

 the teeth of the types and finds that the lateral teeth of the jaws are 

 all unicuspid, but that in one young example the one or two lateral 

 teeth immediately behind the enlarged ones have vestigial cusps. 

 In the Kigoma specimens, on the contrary, I find the six or seven 

 teeth behind the enlarged ones to be tricuspid, and the ones posterior 

 to these unicuspid. 



The tricuspid lateral teeth, the smaller mouth, and the lower 

 scale count might be taken to indicate a species distinct from T. 



1 Since this was written, Borodin (193G), in a paper marred by much misspelling- and 

 many evident tgregious errors of generic and specific placement, has recorded 26 specimens 

 from Ujijl. Until they are re-examined by a competent ichthyologist, I question the 

 identification of these specimens. 



