BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. U 



Some remarks on the genus Paradoxidea 



Brong., and the necessity of preserving the genus 

 Triarlhrus, proposed in the Monograph of the Trilobites 

 of North America. 



In Am. Jour. Sci., 1st series, vol. 83, 1838, p. 341. 



Description of a new Trilobite. 



In Am. Jour. Sci., 1st series, vol. 33, 1838, p. 406. 

 Calymene rowii n. sp. 



This Trilobite was figured by Mr. Row in the Poughkeepsie Telegraph,. 

 Nov. 22, 1837. 



Description of Asaphus polypleurus. 



In Am. Jour. Sci., 1st series, vol. 34, 1838, p. 380. 



Description of a new Trilobite. 



In Annals Mag. Nat. His., 1st series, vol. 1, 1838, p. 79. 

 Calymene rowii Green. 



- Description of a new Trilobite. 



In Am. Jour. Sci., 1st series, vol, 37, 1839, p. 40. 



Asaphus diurus n. sp. 



In a recent article on Coronura aspectans Conrad, by J. M. Clarke, the 

 author refers this species to Asaphus diurus Green. 



Professor Clarke remarks that Dr. Green's citation of locality " in Green 

 county, Ohio, in the neighborhood of Xenia," is evidently erroneous. 

 The species is cited by this author from the Corniferous limestone under 

 Coronura diurus Green. 



The inferior surface of the Trilobite discovered. 



In The Friend, a weekly journal, Philadelphia, March 16, 1839. 

 Calymene bufo. 



The inferior surface of the Trilobite discov- 

 ered. Illustrated, with colored models. Philadelphia,. 

 1839. 



Calymene bufo. 



Remarks on the Trilobites. 



In Am. Jour. Sci., 1st series, vol. 37, 1839, p. 25. 



This article appears to be a republication of the two preceding refer- 

 ences, with the addition of the remarks on p. 38. 



An additional fact, illustrating the inferior 



surface of Calymene bufo. 



In Am. Jour. Sci., 1st series, vol. 38, 1840, p. 410. 



