30. OKNVOROOE. 183 



lo. Genyoroge melanura. 

 Diaciipe iiiplaiiura, Riipp. N. W. Fisch; p. 92. t. 23. f. 1. 

 D. 1^. A. l^. L. lat. 60. Ctec. pylor. 4. 



The height of the body is 3^ in the total length, and equal to the 

 length of the head. Prajoperculuin serrated, with stronger denticu- 

 lations below the notch. Upper profile of the head straight. Pec- 

 toral fins pointed, reaching nearly to the front end of the anal ; 

 caudalis notched. The third, fourth and fifth dorsal spines longest ; 

 the second of the anal fin longer and stronger than the third. 

 Uniform crimson ; dorsal, caudal, and anal fins white-edged ; basal 

 part of the caudal of black colour (disappearing in dried specimens). 



Red Sea. 



a. Adult : stuiFed. Red Sea. From the Frankfort Museum. 



16. Grenyoroge amboinensis. 



Mesoprion amboinensis, Bleeker, Amb. ^ Cer. p. 259. 

 D. ii. A. |. L. lat. 55. 



The height of the body is 3^ in the total length, the length of 

 the head 3^-3^ in the same ; the diameter of the eye is 3^ in the 

 length of the head. Caudahs slightly emarginate ; the middle dorsal 

 spines longest ; the second anal spine longest, longer than the rays. 

 Rose-coloured : back with oblique red streaks, sides with five or six 

 yellow longitudinal stripes ; fins yellow ; a black blotch immediately 

 above the lateral line. 



Sea of AmbojTia. 



a, 0. Half-grown. Amboyna. Purchased of Mr. Frank. 



Bleeker (7. c.) describes the above species with eleven spines of the 

 dorsal fin, and the following with ten ; in subsequent memoirs he 

 unites them, Avithout explaining his reasons for it. If there is no 

 mistake in the numbers given, both species must be different, as we 

 have never found any variation in the number of the dorsal spines 

 either in Genyoroge or in Mesoprion. Not ha\dng specimens of both 

 the species, I am unable to decide the question, and give the diagnosis 

 of M. mclfinospUos. 



17. Grenyoroge melanospilos. 

 Mesoprion melanospilos, Bleeker, Celebes, iii. p. 750. 



D. ii. A. 4. L. lat. 60. 



The height of the body is 3^ in the total length , and equal to the 

 length of the head ; the diameter of the eye is 3^ in the latter. 

 Upper maxillary bone reaching to below the middle of the eye ; the 

 notch of the pricoperculum very deep, and apparently bifid ; the fifth 

 spine of the dorsal fiji and the second of the anal longest ; caudalis 



