1. MFGIL. 415 



II. Adipose eyelid not developed. Upper lip not particulnrly thick. 



A. Anal fin with eight soft rays. 



a. L. lat. 26-27 28. M. waigiensis. 



b. L. lat. 40. 



a. Caudal edged with black .... 29. M. suppositiis. 

 i3. Caudal without a black edge. 



* The height of the body is rather less than one-fifth of the total 



length 30. M. octo-radiatus. 



* The height of the body is one-fourth of the total length. 



31. M. curtus. 



B. Anal fin with nine soft rays. 



a. L. lat. 4,5-46. 



a. Snout broad and depressed ; mandibulary angle obtuse ; the free 

 space at the chin is elongate, cuneiform, obtusely roimded an- 

 teriorly ; the width of the interorbital space is contained twice 

 and two-thirds in the length of the head. 



32. M. capito. 



/3. Snout moderately broad ; the width of the interorbital space is 

 nearly one-third of the length of the head ; the height of the 

 body is contained four times and a hahf in the total length. 



33. M. richardsonii. 



■y. The snout is broad ; the wndth of the interorbital space is two- 

 fifths of the length of the head . 35. M. auratus. 



S. Snout somewhat tapering anteriorly ; the width of the interor- 

 bital space is one-third of the length of the head ; the height 

 of the body is contained five times and a half in the total 

 length . " 36. M. saliens. 



f. Snout rather produced, as long as the interorbital space is broad, 

 the width of the latter being contained twice and throe-fourths 

 in the length of head : height of the body more than one- 

 fifth of the length of body ... 37. M. nmltilineatus. 



(f. The nasal bones cover the upper lip. 



38. ]M. crj-ptochilus.) 



b. L. lat. 42-43 39. M. axillaris. 



c. L. lat. 38-39. 



a. Maxillary entirely hidden .... 40. M. crendeomaculatus. 

 ^. Extremity of the maxiUary Adsible . 41. M. bleekeri. 



d. L. lat. 32-35. 



a. Maxillary entirely hidden. ... 42. M. cejdonensis. 

 /S. Extremity of the maxiUary visible. 



* One-third of the anal is before the soft dorsal fin ; the first 



dorsal spine stands exactly on the middle between the base 

 of caudal and the end of snout. 43. M. smithii. 



* One-third of the anal is before the soft dorsal fin ; the first 



dorsal spine is nearer to the base of the caudal fin than to 

 the end of the snout .... 44. M. troschelii. 



* Nearly the entire anal fin is before the soft dorsal fin. 



45. M. borneensis. 



