194 CALIFORNIA ACADEMY OF SCIENCES. 



Trinucleus lloydii Murch. 



Sec. 1. 1, T. lloydii Murch. 2, T. concentricus Eaton, v&rs. junior, car- 

 actaci, portlocki, elongatus, favus, gold/ussii Barr. 3, T. thersites n. sp. 



Sec. 2. Tretaspis. 4, T. selicornis His. 5, T. Jimbriatus Murch. 6, T. 

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

 dorsospinifer Portl. 



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

 McCoy, R. obtusus n. sp. 



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

 furrows. R. (Caphyra) radians Barr. 



(' yphoniscus socialis Salt. /Eglina mirabilis Forbes, JE. 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. 



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



Himantopterus n. g., H. bilobus n. sp., H. maximus u. sp., //. lanceolatus 

 n. sp., H. perornatus n. sp., H. acuminatits u. sp., H. banksii n. sp. 

 Ceratiocaris. 



Description of the Crustaceans from the up- 

 permost Silurian rocks near Lesmahago. (*) 



In London, Ediub., 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. 

 Paloeopyge n. g., P. ramsayi n.sp. 



On two Silurian species of Acidaspis from 



Shropshire. 



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

 Acidaspis coronata n. 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 n. sp., E. scouleri ?, E. pygmceus Salt., E. megalops 

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

 chararius n. sp. 



