1896.]- A. Alcock — Supplementary List of Indian Fishes. 309 



mihi. Monomitopus agrees with. Neobythites in every particular, except 

 that each ventral fin consists either of a single ventral ray (M. 

 nigripinnis) or of two rays firmly fused throughout their extent (M. 

 conjugator). 



Dicrolene, Groode and Bean. 



In the definition of this genus the branchiostegals should be stated 

 as eight. Paradicrolene, mihi, then becomes a synonym of Bicrolene. 

 It seems to me almost doubtful whether Dicrolene (and Pteroidonus) 

 should be kept separate from Neobythites. For there is an undoubted 

 Neobythites (N. pterotus) in which the pectoral rays, in the male at any 

 rate, are much produced, although none of them are strengthened and 

 entirely independent. 



Dicrolene intronigra, Gr. and B. 



I have compared Indian specimens with one from the North Atlan- 

 tic, and the only difference is that, in the former, the inside of the mouth 

 and the fins are much blacker. 



There are 8 branchiostegals in both. 



Glyptophidium, Alcock. 



In the definition of this genus the ventral fins should be stated as 

 consisting of either one or two rays each : the lateral line should be 

 stated to be absent. 



Lamprogrammus, Alcock. 



To the definition of this genus it should be added that an air- 

 bladder is present. 



Family Macruridae. 



Macrurus (Mystaconurus) heterolepis, Alcock. 



This species is very probably identical with Macrurus (Mystaconurus) 

 cavernosus (= Bathygadus cavernosus) Gfoode and Bean, from the Grulf of 

 Mexico, 227 fms., a specimen of which I have examined. 



Family Stomiatidse. 



Thaumastomias, Alcock. 



Prof. Chr. Liitken (E. Dansk. Vid. Selsk. Skr. 6 Raekke, Nat. 



Math. Afd. "VII. 6, 1892, p. 281) considers Thaumastomias to be identical 



with Photostornias (Collett, Bull. Soc. Zool. France, XIV. 1889, p. 291), 



notwithstanding that the dentition and the whole structure of the 



J. II. 40 



