5CG 



Mr. C. T. Regan on the 



Fig. 2. 



P7;?r 



A. Anjes heterodon. B. Nematogenys inermis. C. Diplomiisfe< pnpil- 

 losm. D. CA«ca lophioides. Head-skeleton seen from above. 



jo»?r, pvoemaxillary ; m.r, maxillary ; mn, lower jaw ; n, nasal : pal, pala- 

 tine; wi.s, niesopfcervfioid : wj/, metapterygoid ; (?, quadrate; hm, 

 liyomandibular ; pop, pra>operculum ; op, operculum ; top, inter- 

 operculum ; eth, mesetbmoid ; leth, lateral ethmoid ; /. frontal ; 

 .7)0, spheuotic ; pto, pterotic ; epo, epiotic ; soc, supraoccipital ; coc, 

 exoccipital ; /)^ post-temporal ; ,*c/, supra-cleithrum ; />. parapopliysia 

 of fourth vertebra; p, parapophysis of lifth vertebra; r, rib of sixth 

 vertebra ; n, nuchal plates. 



