Zoological Society. 367 



Pedes antlci gracillimi. Abdomen maris lanceolatum, segmentis a tertio 

 ad sextum coalitis. 



1. Arcania Erinaceus, Herbst. Corpore atque membris dense spiuosis, 

 spinis spinulosis. 



2. Arcania ll-spinosa, De Haan. " Thoiace spinuloso, spinulis obtusis, 

 anibitu U-spinoso, spinis acutis simplicibus ; brachiis granulatis, digitis 

 manibus longioribus." 



3. Arcania novem-spinosa, Adams & White. " Thorace Isevi, granuloso, 

 marginibus latero-anteriovibus spinis duabus, latero-posterioribus spinis 

 duabus, posteriore spina longfi, recta." 



4. Arcania septem-spinosa, Bell. Test^ paulo latiore quam longiore, 

 tuberculat^, margine spinis septem tuberculatis armato, laterali utrin- 

 que reliquis longiore. 



5. Arca?iia tuberculata, Bell. Testgl paulo longiore quam latiore, omnino 

 tuberculata, margine spinis novem tuberculatis instruct© ; brachiis gra- 

 nulatis, manibus Isevibus. 



6. Arcania gracilipes, Bell. Testd granulosa, tuberculis quindeeim supra, 

 et tribus ad margin em posteriorem instructa ; pedibus anticis tenuis- 

 simis. 



7. Arcania Icevimana, Bell. Testa granulate, tuberculis numerosis di- 

 stinctis, ad marginem spinis novem simplicibus armata; manibus 



Genus Iruis, Leach. Testa rhomboidalis, transversa, angulis rotundatis, 



utrinque spina longissima horizontali armata ; fronte emarginato. 

 Species luiica, Iphis septemspinosa, Fabr. 



Genus Ixa, Leach. Testa elliptico-rhomboidalis, processu utrinque sub- 

 cylindrico a regione branchial! producto ; regionibus sulco profundo se- 

 paratis. Orhita supra bifissa. Pedipalpi externi caule exteriore lato, 

 interiore longiore. Pedes filiformeS. 



Species uuica, Ixa cylindrus, Fabr. 



Read also, a " Notice of a species of Carabideous Insect, Helluo 

 (^Acanthogenys) myrmecophilus , Westw., found together with its 

 larva, in Ants' nests in Ceylon, by G. H. K. Thwaites, Esq., 

 F.L.S." By J. O. Westwood, Esq., F.L.S. This paper was 

 accompanied by figures of the larva and imago states of the insect. 



, rjYgflfili ^lBV9l9 » 



ZOOLOGICAL SOCIETY. 



Jtttie 27, 1854. — Dr. Gray, Vice-President, in the Chair. 



Descriptions of three new species of Titmice. 

 By Frederic Moore. 



Fam. PiPRiDiE, Vigors. Subfam. Pari ana. 

 Genus O rites, Moehring. 



1. Orites? leucogenys, Moore. 



Colour above grey, tinged with pinkish on the rump : before the eye 

 and a broad streak over it black, passing to mixed black and grey 

 on tlie nape ; the centre of the head dusky reddish-isabelline ; base 



