444 ANABANT1DJL 



Ariettas petherici is known from Gondokoro and the White Nile, where Mr. Loat 

 obtained twenty specimens at Fashoda (19-20.3.01) and four at Gharb-el-Aish (7.4.01). 

 I have also examined a specimen from Lake Chad (Capt. Gosling, 1905) *. 



Two species were confounded by Giinther in his original description, only the 

 adult figured by him in Petherick's work being retained under the name proposed by 

 him, the supposed young, three in number, belonging to a distinct species which I 

 have pleasure in naming after Dr. J. Murie, who accompanied the Pethericks to 

 Gondokoro and did most of the collecting. The specimens from the Gaboon, referred 

 later by Giinther to his Ctenopom a petherici, belong to the closely allied A. kingsleyw, 

 Gthr., which occurs in West Africa from the Gambia to the Congo. 



2. ANABAS MURIEL 

 (Plate LXXXIIL fig. 2.) 



Ctenopoma petherici, part., Giinther, Ann. & Mag. N. H. (3) xiii. 1864, p. 211, and Petherick's 



Trav. ii. p. 208 (1869). 

 A nabas petherici, Pellegrin, Mem. Soc. Zool. France, xvii. 1905, p. 185. 

 Anabas muriei, Boulenger, Ann. & Mag. N. H. (7) xvhi. 1906, p. 348. 



Very closely allied to the preceding, but smaller, not exceeding a length of 80 milli- 

 metres, less deep in the body, the depth not exceeding the length of the head, which 

 is three times, or a little less than three times, in the total length, serrature of the 

 interoperculum often absent, ventral fin sometimes extending beyond the first anal 

 spine, dorsal spines fewer, and coloration different. 



Dorsal fin with 14 to 16 spines and 8 to 10 soft rays, anal fin with 9 to 11 spines 

 and 8 to 11 soft rays. I have counted the fin-rays in sixty-three specimens. Dorsal 

 XIV 8 occurs once, XV 8 eight times, XV 9 nineteen times, XV 10 once, XVI 7 

 once, XVI 8 twenty-three times, XVI 9 ten times. Anal IX 10 occurs three times, 



IX 11 five times, X 8 three times, X 9 twenty-three times, X 10 seventeen times, 



X 11 once, XI 8 twice, XI 9 seven times, and XI 10 twice. 27 or 28 scales in a 

 longitudinal series, ^\q i* 1 a transverse series ; lateral lines ^ 13 . 



Numerous small black spots on the body; a blackish ocellar spot edged with 

 yellowish at the root of, and partly upon, the caudal fin. 



The habitat of this species extends from the White Nile to Lake Victoria. I have 

 examined the following specimens : — 



1 Kaka, White Nile.— Loat, 17.4.01. 

 102 Gharb-el-Aish, White Nile, in a kore — Loat, 6-14.4.01. 



* The fin -formula in this specimen is D. XVIII 10, A. X 11. 



