OCR Text |
Show 140 MR. G. Ai BOULENGER ON THE AFRICAN AND [Feb. 7, inner rows very small. Depth of body 2 to 2\ in total length, length of head 3|. Occiput strongly humped, forming an angle Avith the upper profile of the snout, Avhich is straight and somewhat convex ; snout 1^ diameter of eye, which is 3 | to 4 times in length of head and \\ in interorbital Avidth ; mouth moderate, about § width of head, extending to beloAv anterior border of eye ; 5 series of scales on the cheek ; larger scales on the opercle. Gill-rakers short, 11 on lower part of anterior arch. Dorsal X I V - X V 12-13 ; last spine longest, f length of head; middle soft rays much produced, longer than the head. Pectoral pointed, as long as the head, not extending so far as origin of anal. Ventral reaching vent. Anal III 10 ; third spine a little longer than last dorsal; soft rays produced like the dorsals. Caudal emarginate. Caudal peduncle slightly deeper than long. Scales with finely denticulate border, 31-33 ^5. Total length 200 millim. Two badly preserved specimens from the collections of the Rev. W . D. Cowan in Betsileo, Madagascar. The following species from Lake Ngami are insufficiently described by Castlenau, M e m . Poiss. Afr. Austr. (1861) :- Chromys sparmanni, p. 12. D. X V I 12 ; A. Ill 10. Body short aud deep. Dark green ; anterior half of caudal dark red, posterior half greenish Avhite. Chromys andersoni, p. 14. D. X V I 15 ; A. Ill 12. Teeth in 4 series. Body short and deep ; pectoral very long ; dorsal and anal prolonged. Blackish grey ; caudal dark red ; dorsal grey, edged with red ; dorsal and anal with round blue spots. Chromys chapmani, p. 15. D. X V I 11 ; A. Ill 10. Lat. 1. g. Body short and deep; pectoral very long. Greyish Avhite ; caudal blackish, yellow in the middle ; dorsal grey, variegated with yellow and tipped with reddish. Chromys smithi, p. 16. pp Lat. 1. ^. Teeth in tAAo rows. Pectoral not prolonged. Black above, yellow beneath ; head dark red beneath ; dorsal and caudal greenish ; ventrals and anal purple. Chromys levaillanti, p. 16. D. X V 14 ; A. Ill 11. Body elongate. Pectoral rather short. Grey ; head covered with red dots ; dorsal grey, dotted Avith black; caudal dirty green; anal yelloAvish green, dotted with red. |