172 



DE. G. L. ELLES OX THE BALA COryTRT : [vol. Ixxviii, 



N. Wales 



Fhillipsinella-parahola Fauna. 



R h i w 1 a s Limestone and M u d s t o n e s 



C = very common : c = common ; r = rare. 



Agnostiis agnostiformis (M'Co}') 



Asaphns radiatus Salter 



Ampyx turn id us Salter 



Calymene bhimeubachii Brongniart 

 Cheirurus bimiicronatus (Murcliison) 

 Cheirnrns gelasinosv.s (Portlock) 



Cheirurus juvenis (Salter) 



Cheirurus octolohatus (M'Coy) 



Cyheleloveni (Linnarssou) 



Cyhele rugosa (Portlock) 



Cyhele verrucosa (Dalman) 



Dindymene cordai Etheridge & Xicliolson 

 Uncrinurus sexcostatus (Saltei* 

 Mncrinurtis multisegmentatus (Portlock) 



Illfenus howmanni Salter 



lUcenus davisi Salter 



Lichas laxatus M'Co}^ 



Lichas cf. bulbiceps Heed 



JBhiUipsinella parabola Barrande 

 Remopleurides colbii Portlock 

 JRemopIetirides radians Barrande 

 Sphcerexochus inirus Bej'ricli 

 Staurocephahi.s murchisoni Barrande 

 TrinucJeus seticornis Hisinger 

 Trinucleus bucJdandi Barrande 

 Tlumnlites peachi (Etheridge & Nicliolson) . 

 Caryocysfites davisi (M'Coy) 

 Caryocystites granulatus Forbes 

 EchinosphcBrites arachnoideus Forbes 

 Seinicosmifes rugatus Forbes 

 Sphceronecfes munittis Forbes 

 Sphceronectes pyriforinis Forbes 

 Sphceronectes punctatus Forbes 

 Orthis (Bilohitesj biloba (Linnarsson) 



Orthis s.s. calligramma var 



Orthis (SebertellaJ crispa (M'Co}') 



Orthis (DaJrnaneUa) elegantuJa var. drum- 



mucketisis Reed 



Orthis (Dalmanella) elegantula var. 



Christiania tenuicincta (M'Coy) 



SyatteJla portlocJciana (Davidson) 



Skenidium leicisi (Davidson) 



Flectambonites quinquecostata (M'Coy) 

 Stropheodonta eorrugatella (Davidson) 



Orthoceras vagans Salter 



JSoIopea coiicinna M'Co}' 



Many small ostracods and a few larger forms 

 abundant. Also some ' survivors ' from tlie 

 Chasinops Fauna, though these are usually 

 A'ery rare : namely, Chasmops sp., Acaste 

 apiculata, JPlatystrophia biforata, and 

 UTicolella actonice.. 



