414 ME. G. A. BOULENGEE ON A COLLECTION OF EISHES 



I'anale sont grises, parsemees de points rouges, et bordees de jaune ; les ventrales sont 

 grises, avec la pointe rougeatre ; le dessus de la tete est d'un vert sombre ; iris vert." 



20. Paeatilapia angusticeps. (Plate XLII.) 

 Bouleng. Ann. & Mag. N. H. (7) xx. 1907, p. 108. 



The following description is taken exclusively from the six specimens in Mr. Woos- 

 iiam's collection (native names : Mpwere and Nchu). The types are from Mossamedes 

 and the Upper Zambesi, and the species also occurs in Lake Bangwelu. 



Depth of body 2f to 3 times in total length, length of head 2f to 2| times. Head 

 very strongly compressed, 2-1- to 3 times as long as broad, upper profile slightly concave ; 

 lower javr projecting; prsemaxillary process very long, extending to between the eyes ; 

 snout pointed, longer than broad, shorter than postocular part of head ; eye 5 to 6J 

 times in length of head, equal to or a little less than the interorbital or prseorbital 

 width ; mouth extending to below anterior border of eye ; teeth in 3 or 4 series, small, 

 30 to 40 on each side of upper jaw ; 7 to 10 series of scales on the cheek, the vertical 

 diameter of the scaly part 1^ to 1| times diameter of eye. Gill-rakers rather short, 

 those near the angle bifid or trifid, 11 or 12 on lower part of anterior arch. Dorsal 

 XIV-XV 15-16 ; spines increasing in length to the last, which measures -g- to f length 

 of head ; longest soft ray | to | length of head. Anal III 12. Pectoral ^ to | length of 

 head, not reaching vertical of origin of anal. Ventral reaching vent. Caudal rounded. 

 Caudal peduncle as long as deep. Scales slightly rugose, not or but very finely 

 denticulated, 36-39 ~ ; lat. 1. f!^l 



The largest specimen (native name : Mpwere), of which Mr. Woosnam made a sketch, 

 is yellowish olive above, yellow beneath, each scale with a dark brown bar at the 

 base; dorsal dark olive-grey, edged with yellow, with round brown or blackish spots 

 between the rays ; caudal dark olive-grey, with round black spots ; anal pale olive, 

 edged with yellow, with round bright spots edged with white ; pectoral light olive, 

 ventral dark olive ; iris pale olive, with a yellow circle round the pupil. As now 

 preserved this specimen has the head spotted with black. 



Other specimens are brown above (in spirit) marbled with darker, and with a more or 

 less distinct dark lateral stripe. 



Total length 130 to 245 mm. 



Had not the species to which these specimens belong been already properly described 

 under the name of P. angusticeps, I should have been disposed to refer them, with 

 a query, to Chromys levaillantri of Castelnau, which is defined as follows (p. 16) : — 



"Longueur, m. 28. — Corps ovalaire, allonge; bouche protractile; pectorales assez 

 courtes. Corps gris ; toute la tete et la gorge couvertes de points rouges. Dorsale 

 grise, garnie de points noirs ; la caudale d'un vert sale, I'anale d'un vert jaunatre, 

 couverte de points rouge ; ventrales et pectorales grises ; iris d'un gris sale, avec un 



