OF FISHES FROM LAKE TANGANYIKA. 9 
Uniform brown; soft dorsal and caudal fins with round black. spots between the 
rays. 
Total length 75 millim. 
A single specimen from Mbity Rocks, and another from Kinyamkolo. 
6. LAMPROLOGUS ELONGATUS, sp. n. (Plate I. fig. 6.) 
6 to 8 large canine teeth in front of each jaw, followed by a broad band of minute 
villiform teeth; lateral teeth very small. Depth of body 4 times in total length, 
length of head 22 to 2. Snout twice as long as diameter of eye, which is 5 times in 
length of head and equals interorbital width ; maxillary extending to below anterior 
border of eye; cheeks naked; opercles and occiput scaled. Gill-rakers moderately 
long, 12 on lower part of anterior arch. Dorsal XVIII 10-11; spines slightly 
increasing in length to the last, which measures 4 length of head; longest soft rays 
half length of head. Pectoral half length of head. Ventral reaching vent. Anal 
V 8; spines increasing in length to the last, which equals longest dorsal. Caudal 
truncate. Caudal peduncle 1} as long as deep. Scales 90-95 a lat. 1. = 
Brown, with darker spots haying a tendency to form cross-bars ; caudal fin with round 
dark spots between the rays. 
Total length 115 millim. 
One specimen from Mbity Rocks, and one from Kinyamkolo. 
7. LAMPROLOGUS FURCIFER, sp. n. (Plate II. fig. 1.) 
A few large curved canine teeth in front of each jaw, followed by a moderately 
broad band of minute villiform teeth ; lateral teeth very small. Depth of body 4 to 4% 
times in total length, length of head 2$ to 3. Snout as long as or a little longer than 
diameter of eye, which is 35 to 33 times in length of head and exceeds interorbital 
width; maxillary extending to below anterior fourth of eye; cheeks and opercles with 
deciduous scales. Géill-rakers short, 16 on lower part of anterior arch. Dorsal 
XX-XXI 7-8; spines increasing in length to the last, which measures 5 length of 
head; middle soft rays produced, 3 to ? length of head. Pectoral ? length of head. 
Ventral reaching vent or origin of anal. Anal VI-VII 6; spines increasing in length, 
the last nearly as long as last dorsal; middle soft rays produced. Caudal deeply 
notched, crescentic. Caudal peduncle 13 as long as deep. Scales 50-54 ae lat. 1. 
= ; lower lateral line often nearly complete. Dark brown, with very indistinct 
blackish bars on the body; dorsal and caudal with round black spots between the 
rays; tips of the caudal lobes whitish. 
Total length 125 millim. 
‘Three specimens from Kinyamkolo, and one from Mbity Rocks. 
vou. Xv.—Part I. No. 2.— December, 1898. 
