368 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



MYOXOCEPHALUS STELLERI Tilesius. 

 {Cotfn.i decaatrensis Kner.) 

 Hakodate {Alhafross). 



ARGYROCOTTUS ZANDERI Herzenstein. 

 Iturup Island (Alhaiross). 



Family PLATYCEPHALID.E. 



PLATYCEPHALUS INDICUS (Linnaeus). 

 {Platycephalns insidiaior Forskal.) 

 Tokyo (Otaki). 



PLATYCEPHALUS CROCODILUS Tilesius. 

 {Pldtiiaphcdiix i/ultdl naCnvier and Valenciennes.) 

 Tokyo (Otaki). 



INSIDIATOR Jordan and Snyder, new genus. 



Insidiator (type, rudis) differs from Platycephalns in having 3 pre- 

 opercular spines instead of 2, and in the larger scales and rougher 

 head. 



INSIDIATOR RUDIS (Gunther). 



Tokyo (Otaki). 



Family AGONID^. 



PERCIS JAPONICUS (Pallas). 

 {Afjorms stegophthalmus Tilesius.) 

 Robben Island {Albatross). 



BRACHYOPSIS ROSTRATUS (Tilesius). 

 Iturup Island {Al ha trans). 



PALLASINA BARBATA ( Steindachner). 



Iturup Island {Alhatross). 



PODOTHECUS HAMLINI Jordan and Gilbert. 



Shana Bay. Iturup Island {Albatross). 



PODOTHECUS THOMPSONI Jordan and Gilbert. 

 Shana Bay, Iturup Island {Alhatross). 



