BIBLIOGRAPHY OF PAL.EOZOIC CRUSTACEA. 171 



pi. 2a, fig. S. 18, Asaphus gifjas. 19, A. u. ;sp. "JO, A. lou-en/iis, pi. "Ja, 

 figs. 1-7. '21, lUnnus cramcauda Wahl. 22, /. sp. landet. 23, /. oralis 

 n. sp. 24, /. u. sp., pi. 2a, fig. 10. 25, Cermirus pleiirexanthemus Green 

 26, Phacops macrophfhalma'Brong. 27-28, P. n. sp. 29, P. callicephalus. 

 30, Lichees sp.? 31-32, Gytherina sp. uudet. 33, Bumastus barrir-nsis 

 Murch. 



Owen (Richard). Description of the impressions and 

 foot-prints of the Protichnites from the Potsdam sand- 

 stone of Canada. 



Ill Qnart. Jonr. Geol. Soc. Loudon, vol. 8, 1852, p. 214, pis. 9- 14a. 



Paheontology, or a systematic summary of 



extinct animals and their geological relation. Edin- 

 burgh, 1861. 



Class 3. Crustacea, pp. 45-51. 



The author illustrates Leperditia bnltica, Enlomoconchus ncouleri, Bey- 

 rirhia complicata, Dithi/rocaris scoulcri,, Pterygotua anglicus, Belinitrus 

 bcllulus, Illctnns davisii, Phacops caudata, Calymene blumenbachii, Triiiu- 

 cleits ornata, Agnostus trinodus. 



Pacht (R.) Der Devonische kalk in Livland, 1849. 



As'inusla membranacea u. sp. 



Geognostische Untersuchungen zwischen Orel 



Woronasch und Simbirsk in Jahre, 1853. 



In Beitrage zur Keuntuiss des russischeu Reiches nud der augraiizeu- 

 den Lander Asiens, St. Petersburg, 1858. 



Packard (A. S., Jr.) On the embryology of Limuliis 

 polyphemiis. 



In Proc. Am. Assoc. Adv. Sci., 1870, 19th Meeting, p. 247. 

 Notes on the larva of Trilobites, etc. 



The structure of the eye of Trilobites. 



In Am. Naturalist, vol. 14, 1880, p. 503. 



A monograph on the Phyllopod Crustacea of 



North America, with remarks on the order Phyllocarida, 



In Twelfth Kep. U. S. Geol. Survey Territories (Haydeu), Washington, 

 1883, pt. 1, p. 295, pis. 1-38. 



The author illustrates Echinocaris punctatus Hall, E. multinodosus Wliitf., 

 E. sublevis Whitf. Discinocaris broivniana H. W. Dithyrocaris neplunl 

 Hall. Estheria ovata Jones. Leaia leidyi Jones. Eslh'ria daivsoni Pack. 



