MORMTROPS. ^ 31 



the pectorals and from the anal, or nearer the former. Anal fin longer 

 than the dorsal. Vertebree 56-62 (21-24 + 31-39). 

 Nile and Tropical Africa. 



Synopsis of the Species. 



I. Caudal peduncle 2 to 2^ times as long as deep, ^ to i length of head. 



A. 20-3G teeth in each jaw ; lat. 1. 85-96. 

 D. 21-27; A. 40-51; 14-18 scales round caudal 



peduncle ; depth of body 5-6^ times in 



total length ; head nearly twice as long- 

 as deep 1. M. deUciosns, Leach, p. 32. 



D. 25-28 ; A. 39-42 ; 20 scales round caudal 



peduncle ; depth of body 5-G^ times in 



total length ; head nearly twice as long 



as deep 2. M. anpidUo'ides, L,, p. ?A, 



D. 20-29 ; A. 39-45 ; 14 scak'S round caudal 



peduncle ; depth of body 6^-7 times in 



total length ; head more than twice as long 



as deep 3. .17. loivjiceps, Gthr., p. 35. 



1). 2&; A. 43 ; depth of body 7§ times in total 



length ; head nearly twice as long as deep . 4. M. hrericeps, Stdr., p. 3l), 



B. 10-lG teeth in each jaw. 



1. Snout short, not prolonged into a tube. 



a. D. 19-22 ; A. 33-37 ; head nearly twice as long as deep ; depth of 



body G^-7^ times in total length. 



L. 1. 80-93 ; IG scales round caudal peduncle . 5. M. engystoma, Blgr., p. ?A\. 



L. 1. 70-7G : 12 scales round caudal peduncle . G. M. parvus, B^g'"-? P- 37. 



b. D. 29-32; A. 40-47; L. 1. 90-95; 1G-I8 scales round caudal 



peduncle ; head not t^ice as long as deep. 

 Depth of body G times in total length ; 7th or 



8th ray of anal corresponding to first of 



dorsal 7. .1/. masuiamts, Blgr., p. 38. 



Depth of body 6^-S times in total length ; 13th 



or 14th ray of anal corres[)onding to first 



of dorsal 8. M. sirenoides, B]gr., p. ?,0. 



2. Snout much produced, tubiform, straight or slightly curved ; A. 34-39. 

 D. 19-21 ; L. 1. 70-74 ; 10-12 scales round 



caudal peduncle ; head 2^-2| times as long 



as deep 9. IT. cancUrostris, Gthr., ji. 40. 



D. 17 ; L. 1. 63-70 ; 8 scales round caudal 

 peduncle ; head 3-3^ times as long as 

 deep ... 10. ^1/. boiileucferi, Pellegr., p. 40. 



