42 



the genera Hoplophorus, Systellaspis and Acanthephyra : besides a new variety of Acantli. 

 media Bate, a new species of this genus was discovered, presenting the same soft and mem- 

 branaceous integument as Acanth. brevirostris S. I. Smith etc. and which therefore must be 

 included in the now proposed section or subgenus Meningodora. Very interesting is also the 

 only specimen of Systellaspis debilis (A. M.-Edw.), taken in the Halmaheira Sea, that proved 

 to differ rather distinctly from the typical atlantic species and therefore has also been described 

 as a new variety. As far as we know at present, the Indian Archipelago, including the Philippine 

 Islands, is inhabited by one species of HoplopJiorus, by one of Systellaspis, by ten species and 

 two varieties of Acanthephyra, by three species of Notostomus and by one of Hymenodora, 

 while species of Ephyrina and Gonatonotus have not yet been observed in these seas. 



LIST OF ALL THE SPECIES OF HOPLOPHORIDAE, KNOWN AT PRESENT. 



I. Genus Hoplophorus H. M.-Edw. 1837. 



