194 
THE TANGANYIKA PROBLEM. 
6 1. Telematochromis vittatus. — BIgr. 1898. (Fig. p. 187. Middle.) 
Twelve to 16 enlarged conical teeth, tipped with brown, in the outer row in each 
jaw. Depth of body 4.4 to 45 times in total length, length of head 4. Snout 
descending in a strong curve, as long as or a little longer than the diameter of the eye, 
which is 3$ to 4 times in length of head and equals interorbital width ; maxillary 
extending below nostril ; head naked, opercle with a few deciduous scales. Gill- 
rakers very short and few. Dorsal XXI. -XXII. 8 ; spines increasing in length to 
the last, which equals £ length of head ; soft rays a little longer. Pectoral 
| length of head. Ventral produced into a short filament, reaching origin of 
anal. Anal VII. 5-6; spines increasing in length to the last, which equals last 
dorsal. Caudal rounded Caudal peduncle as long as deep. Scales 45-52 » 
lat. 
25—29 
^ Yellowish, with a dark brown lateral stripe from the upper lip, 
through the eye, to the base of the caudal, where it expands into a spot ; 
another dark brown stripe from the vertex along the base of the dorsal ; a few brown 
spots on the dorsal. Anal edged with black ; a dark brown bar at the base of the 
pectoral, which is white. 
Total length, 78 millim. 
Described from two specimens from Mbity Rocks. 
62. Telmatochromis temporalis. — Blgr. 1898. (Fig. p. 204.) 
Eight to 12 enlarged conical teeth, tipped with brown, in the cuter row in 
each jaw. Depth of body 3J to 3.} times in total length ; length of head 3 to 3J. 
Snout descending in a strong curve, i.j times as long as the diameter of the eye, 
which is 4^ times in length of head and a little less than interorbital width ; 
maxjllary extending to below anterior border of eye ; head naked, or with a few 
deciduous scales on the opercles. Gill-rakers very short and few. Dorsal XX.-XXI. 
6-7 ; spines increasing in length to the last, which equals | to h length of head ; 
middle soft rays produced, jj to f length of head. Pectoral % length of head. Ventral 
produced into a filament, extending beyond origin of anal. Anal VI. -VII. 6-7 ; 
spines increasing in length to the last, which equals or slightly exceeds last dorsal ; 
soft rays produced, like the dorsals. Caudal rounded. Caudal peduncle as long as 
6 25 
deep. Scales 43-46 — ; lat. 1 -- y Brown with small round darker spots 
between the dorsal, anal, and caudal rays ; a dark horizontal streak behind the eye ; 
a dark bar at base of pectoral. 
Total length, 85 millim. 
Described from three specimens from Kinyamkolo, and one from Mbity Rocks. 
The deep anterior groove of the skull, in which the ascending processes of the 
prremaxillaries are received, extends to the anterior third of the orbits, and the 
strong occipital crest is prolonged forward to it ; parietal crests are entirely absent ; 
the chain of suborbital bones is very’ slender. None of the ribs are sessile, being 
inserted on a step at the back of the transverse processes of the vertebne at a short 
distance from the centre ; all bear epipleurals ; only the last pnecaudal vertebra has 
a haemal bridge. 
