the Family Cichlide. 43 
frontals ; parietal crests ending above posterior part of 
orbits; ethmoid suturally united with vomer ; nasals con- 
siderably expanded posteriorly ; preemaxillary processes not 
reaching frontals ; maxillary short and broad, broadest below 
palatine articulation ; posterior part of parasphenoid slightly 
raised, bearing a pair of subcircular facets for articulation of 
upper pharyngeals. Vertebre 32-34 (16-17+ 16-17); third 
without inferior apophyses ; preecaudals with parapophyses 
from the fourth; ribs, except the first, on parapophyses. 
Tanganyika. 
Two species, C. grandocul’s and C. furetfer (Paratilapia 
furcifera, Bouleng.). 
14. LIMNOCHROMIS, gen. nov. 
(type Pelmatochromis auritus, Bouleng.). 
— Dorsal XTI-X VII 9-16. Anal III 7-12. Scales finely 
denticulated, large, 32 to 42; two lateral lines. Mouth 
terminal ; maxillary rather narrow, slightly exposed ; teeth 
conical, in 2 to 4 series. Lower pharyngeal triangular ; 
teeth all slender or a few median posterior teeth slightly 
enlarged. Occipital and parietal crests extending forward 
to above middle or posterior part of interorbital region; a 
median groove on frontals in front of occipital crest ; nasal 
bones expanded posteriorly ; ethmoid well separated from 
vomer ; pramaxillary processes moderate or long, sometimes 
extending to between the orbits; posterior part of para- 
sphenoid slightly raised, bearing a pair of transverse oval 
facets for articulation of upper pharyngeals. Vertebre 31 
(15+16) to 37 (19+18); third with or without a pair of 
inferior apophyses which do not meet below. 
Tanganyika; four species. 
In addition to L. auritus this genus includes three species 
placed by Boulenger in Paratilapia—L. pfefferi, nigripinnis, 
and leptosoma. L. auritus and L. leptosoma are very similar 
in their osteology, and the other species are intermediate 
between them in external characters. 
15. CYPHOTILAPIA, gen. nov, 
(type Pelmatochromis frontosus, Bouleng.). 
Dorsal XV-XIX 8-10. Anal IIT 7-8. Scales cycloid or 
feebly denticulated, large (28-36) ; two lateral lines. Frontal 
region humped. Mouth terminal ; maxillary largely ex- 
posed ; teeth in 3 to 5 series, outermost enlarged, conical 
or some bicuspid, inner conical or some tricuspid. Lower 
