. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Fishes; Freshwater animals. LAMPROLOGUS. 4G3 2. LAMPROLOGUS TETRACANTHUS. Boiileng. Ann. Miis. Congo, Zool. i. p. 118, })1. xliv. fig. 5 (1899), and Poiss. Bass. Congo, p. 398 (1901); Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 288. Depth of body 4 times in total length, length of head 3^ times. Snout with slightly convex upper profile, a little longer than eye, which is 3f times in length of head and a little exceeds intei orbital widtli; mouth extending to between nostril and eye; head naked ; pits of
. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Fishes; Freshwater animals. LAMPROLOGUS. 4G3 2. LAMPROLOGUS TETRACANTHUS. Boiileng. Ann. Miis. Congo, Zool. i. p. 118, })1. xliv. fig. 5 (1899), and Poiss. Bass. Congo, p. 398 (1901); Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 288. Depth of body 4 times in total length, length of head 3^ times. Snout with slightly convex upper profile, a little longer than eye, which is 3f times in length of head and a little exceeds intei orbital widtli; mouth extending to between nostril and eye; head naked ; pits of sensory canals very large. Gill-rakers short, 10 on lower part of anterior arch. Dorsal XX 10 ; spines increasing in length to the last, which measures f length of head and f longest soft rays. Anal IV 7. Pectoral f length of head. Ventral produced into a filament, extending a little beyond origin of anal. Caudal rounded. Caudal peduncle a Fig. tetracanthus. Type (A. M. C). little longer than deep. Scales 41 j^, very small on nape and bcHy ; 30 lateral lines y^. Dark brown ; a black opercular spot; fins blackish, dorsal edged with white ; light spots on the caudal. Total length 120 millim. Lake Tanganyika.—Type in Congo Museum, Tervueren. 3. LAMPROLOGUS MARGINATUS. Bouleng. Rev. Zool. Afr. iii. 1914, p. 443. Depth of body 3| to 4 times in total length, length of head 3^ times. Snout with slightly convex upper profile, a little longer than eye, which is 3J to of times in length of head and measures 1^ to H times inter- orbital width; mouth extending lo below anterior border of eye; sides of head , except a few scales on gill-cover; pits of sensory canals very large. Gill-rakers short, 0 to 8 on lower part of anterior arch. Dorsal XX 11 ; spines increasing in length to the last, which measures. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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