194 CALIFORNIA ACADEMY OF SCIENCES. 



Trinucleus lloydii Murch. 



Sec. 1. 1, T. lloydii Murch. 2, T. concentricus Eaton, vars. junior, car- 

 actaci, portlocJci, elongatus, favus, goldfussii Barr. 3, T. thersites n. sp. 



Sec. 2. Tretaspis. 4, T. seticornis His. 5, T. fimbriatus Murch. 6, T. 

 radiatus Murch. Remopleurides colbii Portl., R. laterispinifer Portl., R. 

 dorsospinifer Portl. 



Sec. 1. Remopleurides, Glabella furrows quite obsolete. R. platyceps 

 McCoy, 7?. obtusus n. sp. 



Sec. 2. Caphyra, Glabella moderate, not inflated, with three pairs of 

 furrows. R. (Caphyra) radians Barr. 



Cyphoniscus socialis Salt. JEglina mirabilis Forbes, ^E. major n. sp. 



On some new Crustacea from the uppermost 



Silurian rocks, by J. W. Salter. With a note on the 

 structure and affinities of Himantopterus, by T. H. 

 Huxley. 



In Quart. Jour. Geol. Soc. London, vol. 12, 1856, pi. 26, figs. 1-7. 



Himantopterus 11. g., H. bilobus n. sp., H. maximus n. sp., H. lanceolatus 

 11. sp., H. perornatus n. sp., H. acuminatus n. sp., H. banksii n. sp. 

 Ceratiocaris. 



Description of the Crustaceans from the up- 

 permost Silurian rocks near Lesmahago. (*) 



In London, Edinb., Dublin Philos, Mag., vol. 11, 1856, p. 83." 

 Himantopterus. 



On the great Pterygotus (Seraphim) of Scot- 

 land and other species. 



In Kep. 26th Meeting Brit. Assoc. Adv. Sci., 1856, Trans, of Sec., p. 75. 



On fossil remains in the Cambrian rocks of 



the Longmynd and North Wales. 



In Quart. Jour. Geol. Soc. London, vol. 12, 1856, p. 246. 

 Palceopyge n. g., P. ramsayi n. sp. 



On two Silurian species of Acidaspis from 



Shropshire. 



In Quart. Jour. Geol. Soc. London, vol. 13, 1857, p. 210, pi. 6. 

 Acidaspis coronata 11. sp., A. caractaci Salt. 



On some new species of Eurypterus. With 



note on the distribution of the species. 



In Quart. Jour. Geol. Soc. London, vol. 15, 1859, p. 229, pi. 10. 



Eurypterus symondsii 11. sp., E. scouleri ?, E. pygmceus Salt., E. megalops 

 11. sp., E. acuminatus n. sp., E. linearis n. sp., E. abbreviatus n. sp., E. 

 rhararius n. sp. 



