OCR Text |
Show 1899.] SYRIAN FISHES OF THE FAMILY CICHLIDJE. 141 15. STEATOCRANUS Blgr. Ann. Mus. Congo, Zool. i. p. 52 (1899). Body moderately elongate ; scales cycloid. Two series of small notched teeth in both jaws, the outer larger, with a pair of larger, truncate, incisor-like teeth at the symphysis. Maxillary exposed. A n adipose crest or swelling along the vertex and occiput. Dorsal with 19 or 20 spines, anal with 3. Vertebra? 30 (16 + 14). 1. STEATOCRANUS GIBBICEPS Blgr. L. c. pi. xxviii. fig. 1. Depth of body 3| to 3 | times in total length, length of head 3. Snout with slightly convex upper profile, nearly twice as long as the eye, the diameter of AA'hich is 5 times in length of head and equals interorbital width ; maxillary extending to below nostril; no scales on the head. Dorsal X I X - X X 8 ; last spine longest, -| length of head, a little shorter than soft rays. Pectoral rounded, | or | length of head. Ventral not reaching vent. Anal III 6. Caudal rounded. Caudal peduncle as long as deep. Scales 32-35 Total length 75 millim. Lower Congo. •16. D O C I M O D C S Blgr. P.Z.S. 1896, p. 917. Body moderately elongate; scales cycloid. Both jaws Avith a very broad band of teeth with compressed sharp-edged crowns ; the outer teeth large, with nail-shaped entire crowns or with a very small lateral cusp, the others small and tricuspid. Maxillary exposed. Dorsal Avith 16 or 17 spines, anal with 3. Vertebras 32 (14+18). 1. DOCIMODUS JOHNSTONI Blgr. L. c. fig. 4 or 5 rows of teeth in each jaw ; 10 or 11 teeth on each side of the outer series of the upper jaw ; croAvns brown-edged. Depth of body 2 | to 3 times in total length, length of head 3 times. Eye a little nearer gill-opening than tip of snout, its diameter 4| in length of head, 1| in interorbital width ; maxillary extending to between nostril and eye ; 3 or 4 series of scales on the cheek; opercle scaleless. Gill-rakers short, 11 or 12 on lower part of anterior arch. Dorsal XVI-XVII 8-9; spines increasing in length to the 5th, which is f length of head. Anal III 9-10; third spine longest, as long as last or penultimate dorsal, but much thicker. Caudal peduncle 1| as long as deep. Scales 33-34 - ; lat. 1. p. A black stripe along the posterior half of the body, between the lateral lines ; soft dorsal Avith round dark spots. Total length 200 millim. Upper Shire River. |