228 CALIFORNIA ACADEMY OF SCIENCES. 



Arionellus piistnlatiis n. sp. Ceraurns rariiti u. sp. Encrimirns trenton- 

 ensis n. sp., E. raricostatus u. sp. Acidaspi^ pnrvtda n. sp. Dabnavites 

 intermedias n. sp. Illamus indeterm'matns ii. sp., /. m'dleri Bill. Asaphus 

 homalonotides n. sp. 



The Utica slate and related formations of the 



same geological horizon. 



In Trans. Albany lust., vol. 10, 1879, p. 2, pis. 1, 2. 

 Metamorphoses of Tr'tarthrus beckii Green. Triarthrus heckii and Bey- 

 rich'ta chirinnaiiensis S. A. Miller. 



Description of new species of fossils from the 



Calciferous formation. 



In 32(1 Eep. New York State Cab. Nat. Hist., 1879, p. 129. Pamphlet 

 published in advance of the report. 



Conocephalites calciferus n. sp., C. harUi u. sji. Ptijchaspm upeciosus n. 

 sp. Bathyurus armatu.'i Bill. 



The Trilobite, new and old evidence relating 



to its organization. 



In Mns. Comp. Zool. Harvard Coll., vol. 8, 1881, p. 191, 6 pis. 

 Ceraurus pleurexanthemus Green. Caly7nene sejiaria Conva(l. Asaphus 

 platycephalns Stokes. Eurypterus remipes Dekay. 



Description of a new genus of the order 



Etirypterus from the Utica slate. 



In Am. Jour. Sci., 3d series, vol. 2.3, 1882, p. 213, ti«ures. 

 Ec.h'inoijnathus n. g., E. develandi n. sp. 



Description of new species of fossils from the 



Trenton group, New York. 



In 35th Eep. New York State Cab. Nat. Hist., 1883, p. 206, 1 pi. 



Author's edition, October 15, 1883, 8 pp., 1 pi. 



Beyrichia bellan. sp. Leperditia (Isochilina) armata n. sp. 



Injury sustained by the eye of a Trilobite at 



the time of moulting of the shell. 



In Annals Nat. Hist., 5th series, vol. 13, London, 1884, p. 69. 



On the locomotory appendages of Trilobites. 



In Science, vol. 3, 1884, p. 279, 3 figs. 



Asaphus meciistos Locke. Calymene senarki Conrad. 



Palaeontology of the Eureka district. 



In Hon. U. S. Geol. Survey, vol. 8, 1884, 24 pis. 



Cambrian: Agnostus hidens Meek, A. communis H. & W., A. neon H. & 



