192 CALIFORNIA ACADEMY OF SCIENCES. 



Palaeontological appendix. 



In Mem. Geol. Survey Gt. Britain, vol. 2, pt. 1, 1848, pp. 331-35-2, 

 figure, pis. 5-8. 



Phacops stokesii Milue-Edw., P. downhigict Mnrch. Dalmania affinis Salt. 

 Proetus latifrons McCoy. 



Sec. Ascqjhus divided into genera Asaphi and Ogygia. 



1 Sec. Illmnus and Asaphus. Illanus rosenbergii Eichw., / bowmanni Salt. 

 Ogygia. Lichas laxatus McCoy, L. verrucosus Eichw., L. sp. ? Calymene 

 brevicapitata Portl., C. tuberculata Salt. Cybele sexcostata Salt., C. verru- 

 cosa Dalm., C. variolaris Broug. Sphcerexochus juvenis Salt. Cheirurus 

 speciosus Dalm. Olenus bisulcatus Phill., 0. humilis Phill., 0. spintdosus? 

 Acidaspis brightii Mnrch., A. bispinosus McCoy. Trinucleus ornatus 

 Sternb., T. ornatus y&x. favus ^aXi. Ampyx parvulus 'Foxhes. Agnoslus 

 trinodus Salt., A. convexus Salt. Beyrichia tuberculata Kloden, B. com- 

 pUcata Salt., B. gibba Salt. 



Appendix A to British Palaeozoic fossils in the 



Geological Museum, University of Cambridge. London, 

 1852 (Sedgwick and McCoy). 



Description of a few species from Wales and Westmoreland, referred to 

 in the foregoing work by John William Salter, p. 645. 



Cythere? umbonata n. sp. Beyrichia complicata Salt., B. stravgulaia n. 

 sp. Phacops (Odontochile) obtusicaudatus n. sp., P. (Phacops) alifrons 

 n. sp., P. (Phacops) apiculatus n. sp. Calymene parvi/rons n. sp. Cheiru- 

 rus clavifrons Dalm. Cybele rugosa Portl. Encrinurus sexcostatus Salt. 

 Lichas nodulosusn. sp. Illcenus davisii Salt., /. murchisoni Salt., /. bow- 

 manni Salt. Homalonotus bisulcatus n. sp., H. bisulcatus var. minor, H. 

 rudis n. sp., H. sp.? Eurypierus cephalaspis n. sp. 



On the lowest fossiliferous beds of North Wales. 



In Kep. 22d Meeting Brit. Assoc. Adv. Sci., 1852, Trans, of Sec, p. 56. 

 Hymenocaris n. g., H. vermicauda n. sp. Asaphus selwynii n. sp, 



On a few genera of Irish Silurian fossils. 



In Kep. 22d Meeting Brit. Assoc, Adv. Sci., 1852, Trans, of Sec, p. 59. 

 Stygina n. g. Cyphoniscus n. g. 



1. With head spines short: Stygina latifrons Portl., A. marginatum Portl. 



2. With head spines long: Stygina murchisoni Murch. 



Cyphoniscus socialis n, sp, Acidaspis jamesii n. sp. jEglina mirabilis 

 n. sp. Remopleurides dorsospinifer Portl. Cyphaspis megalops McCoy. 



and Forbes (Edward). Figures and descrip- 

 tions illustrative of British organic remains. Decade 2. 



In Mem. Geol. Survey United Kingdom London, 1849, 10 pis. 

 Parabolina n. g. Brachampyx (Forbes) n. g. 



