384 LABYEINTHICI. 



2. Osphromenus trichopterus. 



Sparus, Koelreuter, Nov. Cotnm. Petroj). ix. p. 452. pi. 9. fig. 1. 

 Liibrus trichopterus, Pall. Spicil. \\i\. p. 45 ; L. G»i. p. 1286 ; Bloch, 



tab. 295. tig. 2. 

 Trichogaster trichopterus, Bl. Schn. p. 165. 

 Trichopus trichopterus, Lacep. iii. p. 129 ; Cuv. Sf Vol. vii. p. 388. 



pi. 199 ; Bleek. Vcrhand. Batav. Genootsch. xxiii. p. 10 ; Cantor, 



Catal. p. 89. pi. 2. fig. 5 (head). 



pallasii, Shmc, Zool. iv. p. 392. 



leerii, Blcek. Sumatra, i. p. 577. 



D. ^^. A. '^^. L. lat. 44-46. L. transv. 20-25. Ctec. pylor. 2. 



The height of the body is two-flfths or one-third of the total 

 length (without caudal). 



Var. a. hoelreuteri (Cuv. & Val. pi. 199). 



A round black spot on the middle of the side, another on the root 

 of the caudal fin ; head and body with more or less regular brown 

 cross-bands. The depth of the body is two-fifths of the total length 

 (the caudal not included). 



Java. 

 a, b, c-e. Adult and half-grown. 

 /. Adult: discoloured. 



Var. /3. cantoris (Cant. Catal.). 



The two black spots are united by a longitudinal zigzag band 

 running from the mouth thi'ough the eye to the caudal fin ; caudal 

 white-spotted. The height of the body is two-fifths or three-sevenths 

 of the total length (the caudal not inchided). 



Pinang. Malayan Peninsula. 

 g. Adult : skin. Pinang. From Dr. Cantor's Collection. 



Var. y. herii (Bleek. 1. c). 



A black band runs from the mouth through the eye to the caudal 

 fin ; vertical fins with white, brown-edged ocelli ; (in preserved spe- 

 cimens the ocelli are less distinct than the brown edges). The height 

 of the body is contained thrice and three-tifths in the toi*l length 

 (the caudal included). 



Pinang. Sumatra and Borneo. 

 h. Adult. Pinang. From Dr. Cantor's Collection. 



We have not had an opportunity of examining Ctenops nohilis, 

 M'Clell. Calc. Joum. Nat. Hist. v. p. 281. pi. 21. fig. 1. Cantor says, "A 

 second species of Trichopodus has been discovered by Mr. Campbell, 

 Superintendent of Darjeeling, in the rivers at the Sikkim passes, on 

 the northern frontier of Bengal. An incorrect and defective descrip- 

 tion and figure have been published by Mr.M'CleUand, who, imagining 

 that the fish belonged to the family of Chctodontidtv, and the genus to 

 be new, denominated it Ctenoi^s nobilis." 



