430 



JU'lilLlD.E. 



]\Iugil inacrolepidotus, Jiiipp. All. Fische, p. 140. taf. 35. fig. 2 ; Chi\ 

 ^- Val. xi. p. 134 ; Cant. Catal. p. 95 ; (not Rich.). 



melanochir, (Kuhl c^ r. Ilass.) Cuv. <^- Val. xi. p. 143 (young) ; 



Blcck. Borneo, vi. p. 423. 



D. 4 



Cajc. pylor. 10. 



M. waigiensis. 



A. |. L. lat 20-27. L. transv. 9. 

 Vert. 11/13. 



The height of the body is contained four times and a foui'th to 

 four times and three-fourths in the total length, the length of the 

 head four times and a half. Head broad, 

 flat above, the width of the interorbital 

 space being one-half of the length of the 

 head. Snout short, broad, depressed, ob- 

 tuse. Lips thin ; the angle made by the 

 anterior margins of the mandibulary 

 bones is very obtuse. The free space 

 at the chin, between the mandibles, is 

 broadly lanceolate. The inferior extre- 

 mity of the maxillary is visible below the 

 angle of the mouth. Eye without adipose 

 membrane. There are sixteen series of 

 scales between the spinous dorsal fin and 

 the snout. The pectoral extends to the 

 vertical from the origin of the dorsal. 



The eighth and seventeenth scales of the lateral line correspond to 

 the origins of the two dorsal fins. The soft dorsal and the anal short 

 and elevated, scaly; caudal very sHghtly emarginate. Pectorals 

 blackish, entirely black in immature specimens. 



From the Red Sea through the Indian Ocean and Archipelago to 

 the coasts of Australia and to Polynesia. 



a. Adult : stuflfed. Red Sea. From Dr. Riippell's Collection. 

 h-f. Half-grown and young. Red Sea. Presented by Dr. Riippell. 

 g. Young : skin. Sea of Pinang. From Dr. Cantor's Collection. 

 h. Young. East Indian Archipelago. Purchased of Mr. Frank. 

 ?. Young. North-western Australia. Presented by Sir J. Richardson. 

 k. Hall'-grown. South Australia. From Mr. Dring's Collection. 

 I. Adult : skeleton. 



Mugil rossii (Bleek. Kokos, p. 45), known from a single specimen, 

 and described as having a more slender body than M. ivaigiensis, its 

 height being nearly one-sixth of the total length, is, perhaps, not 

 specifically different from the above species. 



SL-eleton. — This species diff'ers from M. septentrlonalis and M. hra- 

 siUensis in the form of its skuU, which is much broader, flatter, and 

 smoother. Each principal frontal bone is not much longer than 

 broad. The turbinal bones are very broad, subquadi-angular, close 

 together, and forming a long suture vnth the frontals. Part of the 

 ethmoid ossifled. The crests in the occipital region are feeble. The 

 abdominal and caudal portions of the vertebral column are equal in 

 length. 



