. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History); Fishes; Freshwater animals. CIIAEACINKLE, 185 Add :— 15. Ad. G. PETERSIUS, Hilg. 2. PETERSIUS HILGENDORFI, BIgr. Matadi, Lower Congo. Mr. J. Paul Arnold (P.). 2 a. PETERSIUS ANSOEGII. Bouleng. Ann. & Mag. N. H. (8) vi. 1910, p. 513, and Ann. Mus. Congo, Zool. ii. 3, p. 8, pi. xvii. fig. 2 (1912). Depth of body 2| to 2f times in total length, length of head 3^ to 4 times. Head as long as deep, with slightly concave upper profile ; lower jaw not projecting beyond upper;
. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History); Fishes; Freshwater animals. CIIAEACINKLE, 185 Add :— 15. Ad. G. PETERSIUS, Hilg. 2. PETERSIUS HILGENDORFI, BIgr. Matadi, Lower Congo. Mr. J. Paul Arnold (P.). 2 a. PETERSIUS ANSOEGII. Bouleng. Ann. & Mag. N. H. (8) vi. 1910, p. 513, and Ann. Mus. Congo, Zool. ii. 3, p. 8, pi. xvii. fig. 2 (1912). Depth of body 2| to 2f times in total length, length of head 3^ to 4 times. Head as long as deep, with slightly concave upper profile ; lower jaw not projecting beyond upper; snout much shorter than eye, which is 2| to 2§ times in length of head and equals interorbital width ; Fig. Petersius ansorgii. Type (A. M. C). maxillary extending to below anterior border of eye; outer praemaxillary teeth 4, alternating with those of the inner row, 8 in number; 8 teeth in lower jaw. Gill-rakers moderate, 18 to 20 on lower part of anterior arch. Dorsal II 8, originating above base of ventral, some of the rays produced into long filaments in males. Anal II—III 20-23, pointed in males, median ray produced into a filament. Pectoral as long as or a little shorter than head, produced into a filament in fully developed males. Caudal forked. Caudal peduncle as long as deep. Scales 31-33 4=r-\ H-2 between lateral line and ventral. Eeddish brown above, more red on the sides, approaching vermilion, silvery Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Dept. of Zoology; Boulenger, George Albert, 1858-1937. London : Printed by order of the Trustees : Sold by Longmans & Co. , B. Quaritch, Dulau & Co. , and at the British Museum (Natural History)
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