12 [Assembly. 



*NiDULiTES FAVUS ( Salter), Lower Llandovery rocks. 



Haverford-west. 



*TRiNUCLEtrs SETicoRNis, Lower Silurian, Caradoc or Bala. 



North of Bala. 



* — ORNATUS (now concentricus (3), Llandeilo flags. 

 Mydrion, Carmarthenshire. 



*Calymene brevicapita. Lower Silurian, Bala beds. 



Near Snowdon. 



*H0MAL0N0TUS BISULOATUS, do 



Near Bala. 



*Otarion ( probably Cyphaspis, sp.), do 

 Ireland. 



*Cythere umbonata, do 



*Petraia subduplicata, Lower Llandovery. 



Haverford-west, Pembrokeshire. 



*Orthis elegantula, Lower Silurian, Bala beds. 



Bodnan. 



*Siphonotreta mictjla, Llandeilo flags. 



*Petraia elongata, Llandovery beds ( formerly Upper 



Caradoc, which is the same bed ). 



*Tentaculites anglicus (Salter), do 



*Lept^na transversalis, do 



*Alveolites repens (Linnaeus), regarded as the Favosiies oculatus 



(GoLDFUSs), by M'COY. 



*Serpulites longissimus, Upper Ludlow. 



Malvern and Woolhope. 



*Ill^nus barriensis, Wenlock limestone. 



*Orthongta triangulata, (would be Gramtmjsia, De Verneuil). 



*Rhynchonella salterii (now Retzia) : it has calcareous spires. 



*Protaster miltoni (Salter), &c. These three new starfish are to be 

 shortly published in the Decades : the genera are noticed in the British 

 Association Reports, 1856. 



UPPER SILURIAN. 



Graptolithes priodon, Wenlock shale. 2 



Woodhouse, and S. of Lanbadara fawr. 



Favosites alveolaris, Wenlock limestone. 1 



Dormington wood. 



Heliolites interstructus, do 2 



Dormington wood. 



CCENITES JUNIPERINUS, do 2 



Dormington wood. 



*Alyeolites seriatoporoides, do 1 



Dormington wood. 



