BIBLIOGRAPHY OF THE PALAEOZOIC CRUSTACEA. 55 



Beecher (C. E.) A larval form of Triarthrus. 



In Am. Jonr. Sci., Sd series, vol. 46, 1893, p. 361, also p. 469, woodcut. 

 Triarthrus heckii Green. 



On the mode of occurrence and the structure 



and development of Triarthrus beckii. 



In The American Geologist, vol. 13, 1894, pp. 38-43, plate. 



Triarthrus beckii Green. 



Abstract of a paper read before Nat. Acad. Sci., Nov. 8, 1893. 



Larval forms of Trilobites from the Lower 



Helderberg Group. 



In Am. Jour. Sci., 3d series, vol. 46, 1893, p. 142, plate. 

 The author illustrated the larval forms of Acidaspis tuberculaius Conrad 

 and Phaethonides sp. ? 



The appendages of the pygidium of Triarth- 

 rus. 



In Am. Jour. Sci., 3d series, vol. 47, 1894, pp. 298-300, plate vii. 



On the mode of occurrence and the structure 



and development of Triarthrus beckii. 



In the American Geol., vol. 13, 1894, pp. 38-43, plate iii. 



Further observations on the ventral structure 



of Triarthrus. 



In the American Geol., vol. 15, 1895, pp. 91-100, plates iv-v. 



Structure and appendages of Trinucleus. 



In Am. Jour. Sci., 3d series, vol. 49, 1895, pp. 307-311, plate iii. 



Bennie (James). On the prevalence of Eurypterid re- 

 mains in the Carboniferous shales of Scotland. 

 In Proc. Koyal Phy. Soc. Edinburgh, vol. 9, 1885-88, p. 499. 

 Not descriptive. 



Benshauser (L.) Ueber Hypostomen von Honialono- 

 tus. 



In Jahrb. Konigl. preuss. Geol. Laudesanst. fiir 1891, pp. 154-166, 1892. 



Bergeron (Jules). Etude paleontologique et stratigra- 

 phique des terrains anciens de la Montague Noire. 



In Bull. Soc. Geol. France, 3d series, vol. 15, 1887, No. 5, p. 376. 



Harpes Escoti n. sp. Gheirurus Lenoiri n. sp. Phacops Munieri n. sp. 

 P. Rouvillei n. sp. 



