16. iETinirNU8. 463 



the length of the head, and rather shorter than the first ray, which 

 equals the longest dorsal spine. Of the 'pectoral rays the third ia 

 the longest, reaching to the vertical from the origin of the anal fin ; 

 it is one-tliird of the total length. The ventral fins are inserted 

 behind the pectorals, and reach nearly to the origin of the anal ; 

 their length is 4i in the total ; the spine is rounded, and about two- 

 thirds of the adjacent ray. There are four canine teeth in the upper 

 jaw, and two in the lower. The molars are broad, and the largest 

 ones have a longitudinal groove, the crown exhibiting two tubercles ; 

 the groove and the tubercles are less distinct in the larger of the 

 specimens ; the three anterior lateral teeth are more conical ; there 

 are six or eight teeth in the upper jaw, and eight in the lower. A 

 vilhform band behind the canines. 



The ground-colour is now yellowish olive (rose-coloured in life ?), 

 with a golden longitudinal streak along each series of scales. The 

 fins are colourless. 



inches, lines. 



Total length 13 8 



Height of the body 4 11 



Length of the head 4 2 



Diameter of the eye 10 



Length of the thii-d (or fourth) dorsal spine. 1 5|- 



of the sixth dorsal ray 1 6i 



of the third anal spine 1 3 



of the first anal ray 1 5J 



of the pectoral fin 3 7 



— of the ventral fin 2 10 



19. Lethrinus mahsena. 



Scia;na mahsena, Forsk. p. 52. 



Lethrinus bungus, (Ehrenbr/.) Cur. c^- Val. vi. p. 279. 



mahsena, Cuv. ^- Val. vi. p. 313; JRiipp. K W. Fische, p. 119. 



taf. 29. f. 4 (dorsal spines rather too slender). 



D. ^. A. |. L. lat. 47. L. transv. 5/15. Ca;c. pylor. 3. 



The height of the body is three times in the total length, the 

 length of the head 3g. The upper profile of the head somewhat 

 gibbous above the eyes (at least, in adult specimens). The eye is 

 not very large, its diameter being 2| in the length of the snout, 

 which is vei'y moderately produced. The upper maxillary reaches 

 to the vertical from the anterior margin of the eye. Lips fleshy. 

 Canines very large ; the posterior molar teeth Avith a distinct longi- 

 tudinal impression. Dorsal spines rather compressed and broad on 

 one side ; the third is nearly equal to the longest ray, and 3| in the 

 length of the head ; the pectoral fins reach beyond the origin of the 

 anal ; caudal forked, with rounded lobes. (Jreenish ; in adult pre- 

 served specimens several indistinct lighter cross-bands. 



lied Sea. 

 a. Sixteen inches long : stuficd. Red Sea. Presented by J. Bui-ton, 

 jun., Esq. 



