194 Mr. W. L. Distant on Capsidse 



which are close together instead of well separated, and by 

 the forked caudal. In Liobagrus, as in Akysis and Acro- 

 chordonichthys, and also in Amblyceps, the air-bladder is 

 reduced to two small lateral portions enclosed in bone. 



11. Macrones medianalis, sp. n. 



Depth of body 5^-5^ times in the total length, length of 



head 3§-4£ times. Diameter of eye 5— 6§ times in the length 



of head,interorbital width 3i?- times, length of snout 3| times. 



Nasal barbel extending beyond posterior border of eye, 



maxillary barbel to base of pectoral or beyond, post-mental 



barbel to the edge of the gill-membrane at a point directly 



posterior to its origin or a little beyond. Upper jaw slightly 



the longer; width of mouth J the length of head. Upper 



surface of head covered by skin ; supraoccipital process more 



than twice as long as broad, its length £ that of the head ; 



basal bone of the anterior dorsal ray hidden beneath the 



skin, separated by a short interspace from, or in contact with 



the supraoccipital process. D. 1 7, the spine smooth, equal 



to f-f the length of head ; length of adipose fin equal to its 



distance from the base of middle rays of caudal. A. 17-18. 



P. I 7, the spine with a series of 5-8 teeth posteriorly, equal 



in length to that of the dorsal. V. 6. Caudal bilobed. 



Caudal peduncle twice as long as deep. Greyish, with a 



few large dark spots or blotches. 



Three specimens, 65-128 mm. in total length. 



Although with less than 20 anal rays, the relations of this 

 species are with the section Pseudobagrus. 



12. Monoptems javanensis, Lacep. 

 13. Ophiocephalus argus, Cant. 



XXl.—IUynchotal Notes.— XXI. By W. L. Distant. 



HETEROPTERA. 



Fam. Capsidse. (Part II.) 



This paper concludes the examination of the Capsidas 

 contained in the British Museum, including Walker's types ; 



