250 Dr. A. Gunther on Fishes from China. 



middle of the tail behind the anal. Mouth oblique, lower jaw 

 prominent; barbels none. Dorsal fin short, with a strong 

 serrated spine, placed above the interval between ventral and 

 anal ; anal fin long, many-rayed ; caudal forked ; pectorals 

 long. Pharyngeal teeth in a double series (5 . 2). 



49. Toxabramis Swinhoiiis, sp. n. 

 D. 10. A. 20. L. lat. 62. L. transv. 9/4. 



The height of the body is contained four times and two 

 thirds in the total length (without caudal), the length of the 

 head four times and a half. Snout shorter than the eye, 

 which is two sevenths of the length of the head, and more 

 than the width of the interorbital space. Upper profile of the 

 head and nape straight ; tip of the snout nearly on the same 

 level with the upper margin of the eye. Mouth narrow, not 

 extending to the front margin of the orbit. Origin of the 

 dorsal midway between the root of the caudal and the eye. 

 Pectoral just reaching the ventral. Silvery. 



Numerous examples, to 4 inches in length. 



50. Culter brevicauda, Gthr. 



51. Misgurnus anguillicaudatus, Cant. 



52. Coilia nanus, Schleg. 



53. Salanx chinensis, Osbeck. 



54. Monopterus javanensis, Lac. 



55. Anguilla bengalensis, Gray. 

 56. Triacanthus brevirostris, Schleg. 



57. Tetrodon ocellatus, Osbeck, var. bimaculafa. 



58. Acanthias vulgaris, Bisso. 



59. Psephurus gladius, Martens. 

 An example nearly five feet long, sent by Mr. Swinhoe, 

 and several others obtained nearly at the same time have en- 

 abled me to make an autoptical comparison of Polyodon gladius 

 with P. folium ; and I have convinced myself that there are 

 sufficient grounds for separating the former in a distinct genus, 

 for which I propose the name Psephurus *, and which is 

 distinguished by comparatively short gill-rakers in moderate 

 number, and by enormously developed fulcra ; they are of 

 larger size and in less number than in any fossil Ganoid. 



* From t//t?<£os, pebble. 



