FRESH AND BRACKISH WATER FISHES. 147 



body form no specific characters , as they are present in 

 all stadia of distinctness. 



Concerning Bleeker's A. microcephalus , the type of which 

 is preserved in our Museum sub N'^. 5161, 1 must mention, 

 that the proportion , between the length of the head and 

 the total length, is so little different from that in ex. of 

 A. scandens of the same dimension, that I place A. mi- 

 crocephalus to the synonymy of A. scandens. Bleeker already 

 founded his species with reservation. 



If, to distinct the species of Anabas, we take as principal 

 specific characters 1". the number of scales on the lat. 1. 

 and 2°. the proportion between the greatest height and 

 the total length of the body, I must mention here an 

 Anahas-specimen , found by me in a bottle with 93 ex. 

 of A. scandens from the Malay Archipelago , and quite 

 different so from A. scandens as from A. oligolepis Blkr. 

 I propose to establish on this ex. a new species : 



Anahas elongatus^ u. sp. 



N". 5162. 1 Ex. Length 104 mM. 



Specific characters : scales on the lat. 1. 30 ; greatest 

 height of the body one fifth of the total length and situated 

 in a vertical level drawn through the upper edge of the 

 gill-openings; from here to the cauda the body becomes 

 gradually more slender. Width of head 19 mM., height 

 20 mM. Diameter of eye 7.5 mM. Whilst the spines at the 

 lower edge of the praeoperculum are very distinct, they 

 want from here to the middle, where they are present 

 again. No characteristic colours or any streaks or dots, 

 but it must be mentioned , that our specimen was at least 

 20 years preserved in spirits. 



Hab. Malay Archipelago. 



When in more than 170 ex. of A. scandens the total 

 length never surpasses 4.3 X the greatest height of the 

 body , it is in A. elongatus 5 X g* b. 



When in A. scandens the greatest height of the head is 



Notes from thie Leyden JMuseuna, Vol. XVI, 



