280 Mr. E. E. Austen on neio 



evidently a much larger fish than its Atlantic congener. 

 Precisely similar difft:reiices are exhibited by the purses of 

 (Jhimara monstrosa and its larger Pacific representative 

 C. 2^fi<^n(ciSTna, while the same comj)arison may be made 

 between a pair of purses, 128 mm. long, which we refer to 

 C. mirohilis and the purses of the Pacific G. mitsukurii. 



Nesiarchus nasuius, Johnson. 



A specimen, 730 mm. long, S. R. 593. 



Previously known from the coasts of Madeira and Portugal. 



Hophstethus atlanticuSy CoUett. 



Several, of which the largest are massive individuals 

 measuring 610 mm., S. R. 51(2, 6/8/08, 50° 39'N., 11° 25' W., 

 400-510 fathoms, and S. R. 593. 



We are indebted to Mr. Regan for the determination. 



Previously known from the Azores and Cape of Good 

 Hope. 



Serrivomer beanij Gill and Ryder. 



A mangled fish, from S. R. 593, seems to be referable to 

 this species, which has a wide distribution at suitable depths 

 in the North Atlantic. 



XXXVI. — New African P/tlebotu?nic Diplera in the British 

 Museum {Natural History). — Part VI. By Ernest E. 

 Austen *. 



Chironomidae. 



Cesatopogonin.s. 



Genus Culicoides, Latr.f 



Culicoides yrahamii, sp. n, 



$ . — Length (13 specimens), inclusive of head, 1 mm. to 

 just over 1 mm.; length of wing 1 mm. 



* For Parts I.-V. see Ann. & Mag. Nat. Hist. ser. 8, vol. i. pp. 209- 

 228 and 401-428, and vol. ii. pp. 94-116, 274-301, and 352-356. 



t Coloured figures of the three species of tliis genus described below 

 ■will appear shortly in an official volume, entitled ' Illustrations of Africa'i 

 Blood-sucking Flies/ with notes by the author. 



