BIBLIOGRAPHY OF PALiEOZOIC CRUSTACEA. 141 



Lyttelton (Charles.) A letter from the Rev. Charles 

 Lyttelton, read Dec. 20th, 1750. 



In Philos. Trans. Eoyal Soc. London, vol. 46, No. 296, 1750, p. 598, pi. 

 1, figs. 3-12. pi. 2. 

 (Calymene blumenhachil . ) 



MacLeay (W. S.) Observations onTrilobites, founded 

 on a comparison of their structure and that of living 

 Crustacea. 



In Murchison's "Silurian system," London, 18.39, i?. 666; Annals 

 Mag. Nat. Hist., 1st series, London, vol. 4, 1839, p. 16. 



The author compares them with Apus and other Aspidophora, animals 

 which, in his oi^inion, of all the Ento'mostraca, appear to come nearest to 

 the Trtlobita. 



Mantell (G.) Medals of creation, or first lessons in 

 geology and the study of organic remains. 2 vols. 

 London, 1854. 



The author gives figures of Illcenus perovalis Murch. Trinuckus lloydli. 

 Calymene hlnmenbachii . Homalonotus delphinocephalus. Phacops cauda- 

 tus. Paradoxides bohemicus. Liynnlus rotandaUis, L. trilobltoides. 



Marcou (Jules). On the Primordial fauna and the 

 Taconic system, by Joachim Barrande; with additional 

 notes by Jules Marcou. 



In Proc. Boston Soc. Nat. Hist., vol. 7, 1861, p. 369. 



The author remarks that "it is evident from the new specimen of E'/llp- 

 tocephalus (isaphoides from the shales of Washington county, N. Y., figured 

 in Emmon's American Geol., pi. 1, fig. 18, that this trilobite is a Paradox- 

 ides related to the group of P. spinosus, perhaps identical with the P. 

 harlani of Braintree. Besides, the trilobite figured pi. I, fig. 16, and 

 called Atops trilineatus, is a true Sao, which genus is the most character- 

 istic of the primordial fauna of Bohemia and Scandinavia." 



Notice sur les gisements des lentilles trilobiti- 



feres taconique de la Pointe Levis on Canada, 



In Bull. Soc. Geol. France, 2d series, vol. 21, 1864, p. 236. 



Marr (J. E.) On some well-defined life zones in the 

 lower part of the Silurian (Sedgwick) of the Lake District. 



In Quart. Jour. Geol. Soc. London, vol. 34, 1878, p. 87L 



Phacops (Chasmops) macroura Sjogren, P. (Odontochile) mucronatus 



Brong. ( Phacops appendkulatus ^s.\i.) Phacops s-p.'i, P. (Odontochile ) 



obtusicaudalus Salt . 



