of the Arabian Sea. 297 



Family Ophidiidae. 

 MoxOMiTOPUS, gen. nov. 



Agrees witli Sircmho, Blkr., as diagnosed by Dr. Giinther 

 in the 'Catalogne of Fishes/ vol. iv. p. 373, except that the 

 pseudobranchia3 are rudimentary. 



1. Monomitopus nigripinne. 



Siremho niffripitmis, Alcock, Ann. & Mag. Nat. Hist., Nov. 1889, 

 p. 384. 



I described this species from a single, rather mutilated 

 specimen from the Andaman Sea ; but with a well-preserved 

 and larger specimen from the Arabian Sea (Station 105) I 

 find that the pscudobranchia?, instead of being " thick and 

 fleshy," as originally stated, really consist of two small 

 pinnules only, on each side, parts of the opercular muscles 

 having been mistaken for thickened pseudobrancliia; in the 

 first specimen. The complete radial formula is 



B. 8. D. 95-100. A. 85-88. C. 8. P. 28. V. 1. 



Neobythites, Goode & Bean. 



2. Neobythites pterotus. 



Neohythites pierotus, ^Vlcock, Ann. & Mag. Nat. Hist. Sept. 181X), 

 p. 210. 



A large female specimen, 11 ^ inches long, from Station 

 10-1, from which I am able to make the following corrections 

 in the original description : — Eight branchiostegals ; snout 

 obtusely pointed ; basal third of anal fin scaly. 



Paeadicrolene, Alcock. 



3. Paradicrolene Vaillanti. 



Dicrokne introniger, Vaillant, nee Goode and Bean ; Vaillant, Exp. Sci. 

 * Travailleur' et ' Talisman,' Poiss. pp. 258-262, pi. xxiii. iig. 2. 



From M. Vaillant's most excellent and exhaustive descrip- 

 tion I have no difficulty in identifying this Ophidiid. But 

 though I can only dissent with diffidence from such an expe- 

 rienced ichthyologist, I cannot concur in his opinion that this 

 fish is identical with Dicrolene intronigra of Messrs. Goode 

 and Bean. Apart from numerous minor points of disagree- 

 ment, the Dicrolene type is stated to have only seven bran- 

 hiostegals. 



