1 1 6 TELEOSTEI. PHTSOSTOMI. 



Upper jaw the longer, the width of the gape of the mouth equals 

 four ninths of the length of the head. Head shagreeued superiorly 

 and covered with fine granules. Two depressions on the head, 

 the anterior oblong and situated so that its first fourth is between 

 the eyes; the posterior oval and placed midway between the 

 posterior extremity of the anterior fossa and the end of the occipital 

 process. Occipital process rounded behind, the width of its base 



Pig. 49. Glorias magur. 



rather above twice its length. Barbels the na^al reach the base 

 of the occipital process ; the maxillary the base or middle of the 

 pectoral fin, the mandibular are shorter. Teeth on the vomer 

 villifonn, not so fine as those in the jaws and becoming a little 

 blunted with age, they form an uninterrupted band which in its 

 centre is as wide as the premaxillary band or rather narrower. 

 Fins pectoral fin reaching to below the commencement of the 

 dorsal ; pectoral spine finely serrated, but covered with skin. Caudal 

 free. Colour dingy green or brownish superiorly, becoming lighter 

 beneath ; the vertical fins usually with reddish margins. 



Bab. Fresh and brackish waters of the plains of India, Burma, 

 Ceylon, and the Malay Archipelago. This fish lives long after its 

 removal from its native element, being amphibious. It attains at 

 least a foot and a half in length. As food it is deemed highly 

 nourishing. 



122. (2.) Clarias teysmanni. 



Clarias teysmanni, Bleeker, Batavia, Nat. Tijdsch. xiii, p. 344 ; 

 Day, Fish. India, p. 484 (see synon.). 



B.ix. D. 70-77. P. 1/7-10. V.6. A.53-63. C.17. Vert. 16/41. 

 Length of head to end of opercle 5 to 5|, height of body C| to 7| 

 in the total length. Eyes situated in the commencement of the 

 second third of the total length of the head to the end of the 

 occipital process. The greatest width of the head equals its length 

 to hind edge of opercle. Head nearly smooth. Occipital process 

 two thirds as long as wide at its base. Barbels the nasal as long 

 as the head, the maxillary reach the end of the pectoral fin, the man- 

 dibular are shorter. Teeth those on the vomer somewhat obtuse, 

 forming a crescentic band which in its centre is about equal in 



