2 33 



a. Dorsal and anal scaly. Pectorals equal to 

 or (in adult) somewhat longer than head. Least 



height of caudal peduncle 2 or more in head. M. speigleri p. 241. 



b. Dorsal and anal not scaly. Pectorals much 

 shorter than head. Least height of caudal 



peduncle less than twice in head M. cunnesius p. 242. 



B. Anal with 8 soft rays. Maxillary visible. Upperlip 

 not ciliated. Origin of first dorsal nearer to caudal 

 than to end of snout; that of second dorsal 

 opposite to I Qth or 2oth lateral scale and behind 



first third of anal. Pectorals shorter than head . M. subviridis p. 243. 

 II. Upper lip not particularly thick. Gelatinous eyelid 

 very small or wanting. 



A. Anal with 8 soft rays; maxillary not visible. 



L.I. 27 28. Pectorals blackish M. vaigiensis p. 244. 



B. Anal with nine soft rays. 



I.L.I. 26 28 (29). Maxillary visible. First dorsal 

 spine nearer to base of caudal than to end of 

 snout. First half of anal before second dorsal. 



a. L.L 26. Rostro-dorsal profile convex, 15 16 

 praedorsal scales. Pectorals not much shorter 



than head M. oligolepis p. 245. 



b. L.I. 28 29. Rostro-dorsal profile horizontal, 

 1 8 praedorsal scales. Pectorals much shorter 



than head M. melinopterus p. 246. 



2. L.I. 30 31. Maxillary visible. Snout pointed. 



First dorsal spine much nearer to base of caudal 



than to end of snout. Origin of second dorsal 



opposite to 2 1st lateral scale, nearly entirely be- 

 hind anal. Pectorals shorter than head, with an 



axillary scale. Least height of caudal peduncle 



equal to or more than its length and equal to 



postorbital part of head M. ceramensis p. 247. 



3.L.I. 3135. Maxillary visible. Snout obtuse. 



First dorsal spine much nearer to base of caudal 



than to end of snout. Pectorals shorter than 



head, without axillary scale. 



a. L.I. 31 33. Origin of second dorsal opposite 

 to 2 1st 23rd lateral scale and to first third of 

 anal. Least height of caudal peduncle equal 

 to its length and twice in head. 19 20 prae- 

 dorsal scales M. troscheli p. 248. 



b, L.I. 32 34. Origin of second dorsal oppo- 



