. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Fishes; Freshwater animals. CLARIAS. 251 finely granulate; occipital process angular or rounded, as long as broad or broader than long; frontal fontanelle oval or sole-shaped, twice as long as broad ; occipital fontanelle smaller, extending on the occipital process in the young; eye small, its diameter 3 to 4 times in length of snout, 4J to 6 times in interorbital width, which, like the width of the mouth, is about f length of head; band of pryemaxillary teeth nearly 4 times as long as broad; vomerine teet
. Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). Fishes; Freshwater animals. CLARIAS. 251 finely granulate; occipital process angular or rounded, as long as broad or broader than long; frontal fontanelle oval or sole-shaped, twice as long as broad ; occipital fontanelle smaller, extending on the occipital process in the young; eye small, its diameter 3 to 4 times in length of snout, 4J to 6 times in interorbital width, which, like the width of the mouth, is about f length of head; band of pryemaxillary teeth nearly 4 times as long as broad; vomerine teeth conical or subgranular, forming a crescentic band which, in the middle, is about as broad as the pree- maxillary band and may bear a short posterior process ; nasal barbel nearly as long as head ; maxillary barbel 1^ to If times length of head, Fig. Clarias angolensis. ^. Type, after Steindachner {I. c). reaching beyond pectoral, sometimes as far as ventral; inner mandibular barbel a little shorter than nasal, f or § length of outer. Gill-rakers on first arch fine, not very closely set, 25 to 30 in number. Clavicles exposed, striated or feebly granulated. Dorsal 70-82, its distance from occipital process J or \ length of head, very narrowly separated from caudal. Anal 55-63, narrowly separated from caudal. Pectoral i length of head, the spine serrated on both sides, f to f the length of the fin. Ventrals nearer end of snout than caudal. Caudal about \ length of head. Uniform dark brown or black, with more or less distinct light dots. Total length 350 millim. Lagos, Niger Delta, Cameroon, Gaboon, Congo, Angola.—Type in Vienna Museum. 1. Yg. Odo Omi, head-water of Omi R., Major G. E. Bruce (F). Lagos. 2. Hgr. Sapelle, Niger Delta. Dr. W. J. (C). 3. Hgr. Assay, ,, ,,. 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 rese
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