the Family Cicliliclse. 47 



Vertebrre 34 (17 + 17); third witli vestigial inferior apo- 

 physes ; prajcaudals with parapopliyses from fourtli, hist 

 four pairs bridged ; ribs, except tirst, in sockets at or near 

 ends of parapopliyses. 



Tanganyika ; a single species. 



22. AULONOCRANUS, flQW. nov. 

 (type Paratilapia dewindti, Bouleng.). 



Dorsal XII-XIII 12-13. Anal III 9. Scales denticu- 

 late, large (3G-38) ; two lateral lines. Mouth terminal, 

 moderately protractile ; maxillary moderately broad, exposed 

 distally ; teeth very small, conical, in 2 or 3 series, outer- 

 most largest. Lower pharyngeal triangular ; teeth small. 

 Occipital crest ending on posterior part of interorbital region. 

 Frontals, nasals, prceorbitals, lower jaw, and lower limb of 

 prseoperculum with large channels with wide openings ; sub- 

 orbitals narrow. 



Tanganyika ; a single species. 



Intermediate between Haplochromis and Trematocara. 



23. Teematocaea, Bouleng., 1899 (type T. marginatum, 



Bouleng.). 



Dorsal IX-XII 9-12. Anal III 7-10. Scales cycloid, 

 large (28-32) ; upper lateral line short, lower absent. Near 

 AuloiiocranuSj but maxillary concealed, and the deep channel- 

 ing of the bones of the liead extending to the suborbitals. 

 Occipital and parietal crests nob extending forwards on 

 frontais ; ethmoid united with vomer by suture; a large otic 

 bulla; articular surface for upper pharyngeals formed by 

 j)arasphenoid in the middle and basioccipital at the sides. 

 Vertebraj 31 (12 + 19) ; third without inferior apophyses; 

 praecaudals with para|)opliyse3 from the fourth ; ribs, except 

 the first, on parapopliyses. 



Tanganyika; three species. 



24. Stappeksia, Bouleng., 1914 

 (typo S. singularis, Bouleng.). 



Dorsal XIII-XV 13-14. Anal III 13-14. Innermost 

 rays of pelvic fins longest. Scales denticulate, large (37- 

 38) ; two lateral lines. Apparently differs from Enantiopus 

 only in the dentition; teeth small, conical, in 4 or 5 series, 

 outer not directed outwards. 



Tanganyika ; a single species. 



