On new I i\ do- Malay an Lepidoptera. 407 



gradations between them, just as we have seen to be the 

 case in the Eocene species, and, as pointed out at the be- 

 ginning of this article, long known in many Jurassic species 

 also. The objection, therefore, had it been considered 

 sound, might have been raised many years ago; but the 

 facts are much what we might expect on any hypothesis of 

 the origin of Balaiwcrinus from Isocrinus, and are certainly 

 consistent with the special hypothesis here advocated of the 

 multiple origin of Balanocrinus from successive species or 

 species-groups of Isocrinus. It may be impossible to assign 

 an isolated ossicle to its correct genus, but the stem must be 

 considered as a whole. 



Admitting the polyphyletic origin of the genus Balano- 

 crinus as hitherto conceived, our future task is to divide it 

 into sections, each of Avhich may be regarded as a subgenus 

 of Isocrinus if not as a full genus. One such section will 

 undoubtedly comprise the forms herein discussed. In that 

 event the validity of Balanocrinus itself will not be settled 

 by the variations or growth-stages of this Cretaceo-Tertiary 

 assemblage, but by the relationships of the genotype^ the 

 Oxi'ordian Balanocrinus subteres ; and "' that is another 

 story. '^ 



XLIX. — New Indo-Malayan Lepidoptera. 

 ^y Colonel C. SwiNHOE, M.A., F.L.S. 



Family Euplceidae. 



Salpinx ceramica, nov. 



S . Uppevside dark olive-brown, the outer margins paler 

 and somewhat ochreous-tinted : fore wing with a rather large 

 and round bluish spot below the middle of vein 2, with a 

 smaller one immediately below it and seven submarginal 

 bluish spots decreasing in size from the apex downwards : 

 hind wing with the costal space pale ; a large ochreous-grey 

 ])atch covering the upper half of the cell and a space above 

 it, a poptdiscal row of obscure dots and another submarginal, 

 tlie uppermost one most pronounced. Underside : fore wing- 

 coloured as above ; a very large ochreous-grey hinder mar- 

 ginal space which extends to the median vein and a little 

 beyond vein 2 ; a large round ochreous-grey spot below 

 vein 3 near its base, a small one above it, and a whorl of four 



