G4 OK FiRiiF-.s Fiiojr tt;e kkxya uistiuct, v.. aftjicv. [Feb. 7, 



and ventrals, equally distunt from end of snout and from middle 

 of adipose fin ; fiist branched ray g length of head. Adipose fin 

 5 or 6 times as long as deep, twice and ^ as long as rayed dorsal. 

 Anal III 6, midway between root of ventral and root of caudal. 

 Pectoral a little longer than ventral, ^ length of head. Caudal 

 moderately emai'ginate. Caudal peduncle as long as deep. Olive- 

 brown above, with very indistinct darker marblings, brownish 

 white below. 



Total length 180 millimetres. 



Three specimens, from the Chania River of Tetse, Tana system, 

 in cold water, at an altitude of 7000 feet. 



This new Amphilms is the largest yet described, exceeding in 

 size the A. lo7igirostris of South Cameroon (originally described 

 from an immature specimen), which grows to a length of 140 milli- 

 metres. 



The genus Amphilms Gthr. [Anoplopierus Pfefi"., Chimarrho- 

 glanis Yaill.), imtil quite lately represented by two known species 

 only, now includes as many as seven, the characters of which may 

 be thus contrasted : — • 



I. Dorsal above the space between pectorals and ventrals. 



A. Head not or but slightly longer than broad ; snout broadlj' roundt-d, its 

 length not more than twice interocular width ; base ot adipose iin much 

 longer than that of rayed dorsal. 

 Length of head at least 5 times in total length; 



maxillary barbel extending beyond posterior 



border of head ; caudal peduncle not longer 



than deep ^4- uranoscopus Pf'tflT. 1896. 



Length of head 4 times in total length ; maxillary 



barbel not reaching posterior border of head ; 



length of snout once and f to twice interocular 



width ; caudal peduncle not longer than deep ... A. gvandis Blgr. 1905. 

 Length of head 4 to 4^ times in total length; max- 

 illary barbel not extending beyond posterior 



border of head ; length of snout once and :^ to 



once and ^ interocular width ; caudal peduncle 



hniger than deep A. jiJatt/chir Cjt\\\\lS%\: 



B. Head longer than broad ; snout obtusely 

 pointed, its length 2 (} oung) to 3 times inter- 

 ocular width ; base of adipose fin not more 

 than once and a half that of rayed dorsal... A. loiir/iroslris Hlgr. 1901. 



II. Dorsal above the ventrals. 



Length of head 4 to 4j times in total length ; snout 



broadly rounded ; interocular width 2^ to 3 times 



diameter of eye; caudal peduncle a little longer 



than deep ; caudal forked, with rounded lobes ... A. atesnensis Blgr. 1904. 

 Length of head 3| to 3$ times in total length ; snout 



broadly rounded ; interocular width 2^ to 3 



times diameter of eye ; caudal peduncle as long 



as deep ; caudal feebly emarginate A. hrevis Blgr. 1902. 



Length of head 4 to 4^ times in total length ; snout 



pointed ; interocular width not greater than 



diameter of eye ; caudal peduncle more than 



twice as long a-s deep ; caudal emarginate A. aucjvstifronx Blgr. 1902. 



EXPLANATION OP PLATE VII. 



Fig. 1. Discognathus hindii, p. 62. 



1 rt. ,, „ Upper view of head. 



1 h. „ „ Lower view of head. 



2. Barhus thikensis, p. 63. 



3. Amphilins f/randis, Tp. 63. 



3 (I. „ „ Upper view of head. 



