378 OSTEOGLOSSID^. 



1. Osteoglossum bicirrhosum. 



Osteoglossum bicin-hosum, Vandelli ; Ac/ass. in Spix, Pise. Bras. p. 47. 



Ischuosoma bicirrhosiun, Spi.i:, I. c. tab. 25 (anal and caudal lins ab- 

 normally united) and (anat.) tab. A. 



Osteoglossum vaudellii, Cuv. Regne Anim. ; Ciiv. 8r Val. xix. p. 294, 

 pi. 571. 



arowana, Schomhurgk, Fish. Guiana, p. 205, pi. 12 (very bad). 



B. 10. D. 43-46. A. 50-51. L. lat. 32. L. transv. 3^2. 



Vert. 31/30 {Hgrtl). 

 The length of the head is one-fifth of the total (without caudal). 

 Distance between the pectoral and ventral fins less than the length 

 of the head. Scarcely any free space between anal and caudal fins. 

 Barbels varying in length. 



Brazil ; Guyanas. 

 a. Twenty -five inches long. Para. Presented by J. P. G. Smith, 



Esq. 

 6. Twelve inches long. British Guyana. Presented by Sir E. 

 Schomburgk. 



2. Osteoglossum formosum. 



MM. Sf Schleg. Verh. Nat. Gesch. Ned. overz. Bez. Zool. Vissch. pi. 1 ; 

 Bleek. Nat. Tgd. Ned. Ind. ii. p. 436. 



B. 15. D. 18-20. A. 27. V. 5. L. lat. 24. L. transv. 2|/2. 



The length of the head is two-sevenths of the total (without 

 caudal), and equal to the distance between the pectoral and ventral 

 fins. A distinct space between the anal and caudal. Barbels vary- 

 ing in length. 



Borneo, Banka, and Sumatra. 



a. Skin in spirits. Borneo. From the Leyden Museum. 



3. Osteoglossum leichardti. 

 Scleropages leichardti, Giinth. I. c. p. 196, pi. 7. 



D. 20. A. 31. V. 5. L. lat. 35. L. transv. 3/4. 

 The length of the head is contained thrice and three-fourths in 

 the total (without caudal), and rather more than the chstance be- 

 tween the pectoral and ventral fins. A distinct space between anal 

 and caudal. Barbels very small. 



Queensland. 

 a. Type of the species, stuffed, 28 inches long. From Leichardt's 

 Collection. 



