SYNOPSIS OF FISHES OF GENUS MASTACEMBELUS. 199 



** 



33 to 39 dorsal spines ; no preorbital spine. 



D. XXXIII-XXXV 85; A. II 85; no preopercular spine 23. M. Uniatut Blgr 



D. XXXVI-XXXIX 50-60; A. II 50-60; one preopercular spine 24. M . tanganicae Gthr. 



6. Vent equally or nearly equally distant from end of snout and from < audal fin 



a. 



25 to 35 dorsal spines; no preorbital or preopercular spines; 2 anal spine*. 



* Head (to gill-opening) J to 1J times as long as its distance from first 



dorsal spine. 



D. XXVII 80-90; A. II 68-80; no lateral line 25. Af. niger S»uv. 



D. XXV-XXVIII 70-80; A. II 80-90; lateral line formed of a few tubules widely separated from one 



another 26. M . flavomarginattu Blgr 



D. XXX-XXXIII 80-90; A. II 80-90; lateral line formed of a few tubules widely separated from one 



another ; 27. M . batuii Blgr. 



** Head 2 to 3 times as long as its distance from first dorsal spine. 



D. XXV-XXVII 70-80; A. II 70-80: mouth extending to below center of eye; 30-35 scales betvu •« n 



origin of soft dorsal and lateral line 28. Af moorii Blgr. 



D. XXVI-XXIX 65-70; A. II 68-75; mouth extending to below anterior border of eye; IS 22 seal- 

 between origin of soft dorsal and lateral line 29. M. shiranus Gthr 



D. XXVIII-XXIX 95-100; A. II 85-90; mouth extending to below anterior border or anterior third 



of eye; 23-25 scales between origin of soft dorsal and lateral line ... 30. M. nigromarginatui Blgr 



D. XXXII-XXXV 100; A. II 100; mouth extending to below nostril; about 20 scales betw« i n origin 



of soft dorsal and lateral line 31. M. victorxae Blgr. 



0. 25 to 34 dorsal spines; preopercular spines present. 



* 3 anal spines; a strong preorbital spine. 



D. XXV-XXVIII 85-90; A. Ill 85-92 32. M. coryinu Blgr. 



D. XXIX 85; A. Ill 85 33. M. signatus Bl^r 



** 2 anal spines. 



f No preorbital spine; length of head 3 to 4 § times in its distance from 



vent. 



D. XXXIV 128: A. II 120 34. M. ansorgii Blgr. 



D. XXIX-XXXII 80-85; A. II 80-85 35. M. goro Blgr. 



tt A small preorbital spine; length of head 1\ to 3 J times in its distance 



from vent. 

 D. XXVIII-XXXII 110-130; A. II 110-130; depth of body 14 to 17 times in total length. 



35. M . loenribergii Blgr. 



D. XXVI-XXX 80; A. II 80; depth of body 12 to 13 times in total length.. . .36. Af. liberiensis Blgr. 



ttt A strong preorbital spine; length of head 2 J to 2| times in its distance 



from vent. 



D. XXVIII-XXIX 95-105; A. II 115-125 37. Af. cunningtoni Blgr. 



D. XXVI-XXVII 85-90; A. II 80-90 ; 38. Af. sclaUri Blgr. 



y. 23 or 24 dorsal spines; 2 anal spines; preopercular spines present. 

 D. XXIV 100; A. II 100; no preorbital spine; length of head 3i times in its distance from vent. 



39. Af. cryptacanlhus Gthr. 



D. XXIII-XXIV 75; A. II 75-80; a preorbital spine; length of head twice in its distance from vent 



40. Af. marchii Sauv. 



8. Less than 20 dorsal spines ; no preorbital or preopercular spines. 



D. XVIII 85; A. II 90; length of head 8| times in total length 41. M, frenatuf B gr. 



D. VII 105; A. Ill 70; length of head 5* times in total length 42. Af. paucispims Blgr. 



c. Vent considerably nearer end of snout than caudal. 



D. XXV-XXVIII 125-150; A. II 125-150; no preorbital spine; 2 preopercular spines. 



43. Af. longxcauda Blgr. 



D. XXXI 150; A. II 150; a preorbital and 4 preopercular spines 44. M.greshoffi. Blgr. 



D. XXX-XXXIII 100-120; A. I 115-130; no preorbital or preorbicular spine, 



45. M. ophtdium Gthr. 



1. Mastacembelus pancalus. 



Macrognathus pancalus Ham! Buchan., Fish. Ganges, p. 30, pi. XXII, fig. 7 (1822). 

 Mastacembelus pancalus Cuv. A Val., Hist. Poiss., VIII, p. 455 (1831); Gunth., Cat. Fish., III. 



p. 541 (1861); Day, Fish. Ind., p. 340, pi. LXXII, fig. 4 (1876). 

 Mastacembelus punctatus Cuv. & Val., t. c, p. 463. 



Ganges and Lower Kistna. 



Mastacembelus zebrinus. 

 Blyth, Journ. Asiat. Soc. Bene., XXVII 



178. 



Fish 



359, p. 281; Gunth., Cat. Fish., Ill, , p. 541 

 (1876); Vincig., Ann. Mus. Genova (2), IX, 



Irawaddy. 



