81 



Bath. 



sandstone); found in the Trias of Prince Edwards island; 

 now in musiiem of Acad. N. S. Philadelphia. See Appendix. 



Bathynotus holopyga. Peltura holopyga^ Olenus holo- 

 f^r. 1- A,llPy<^(^^ Hall, 1859, 12th 



_— =.-™_ T An. Rt. ; Pal. N. Y. Vol. 



3 ; Paradoxides ? quad- 

 raspinosus^ Emmons, 

 1860, Manual Geol., page 

 80, fig. 57; also Pagura 

 quad. Emmons, p. 280. ) 

 Hall, 1860, 18th An. Rt. 

 and 1861, Geol. Vermont, 

 plate 13, fig. 3. Walcott, 

 Bulletin, U. S. G. S. No. 

 30, page 191, plate 31, 

 fig. 1, nearly perfect 

 specimens, but long eye 

 lobes crushed down. 

 Natural size; fig. 1 a, free 

 cheeks and hypostoma 

 (lower jaw plate) in posi- 

 tion. Lower Cam- 

 brian (Georgian) forma- 

 tion, Parker's farm, 

 Georgia, Vt. Z. C. See 

 foot note to p. 13i. 



Bathyurus extans (Asaphus extans^ Hall, 1847) abundant 

 in Pennsylvania Trenton limestone.^ II c. See Appendix. 



Bathjnrus parvulus. See Protypus senectus. Z. C. 



Bathyurus senectus. See Protypus senectus. Z. C. 



Bellerophon bilobatus. {Cyrtolites liloha. Emmons) 



Rogers, page 819, fig. 607. 

 Emmons, page 392, fig. 101 , 

 h. II b. Black river forma- 

 tion. Ill b. Loraine (Hud- 

 son river) shale. — Rogers, 

 page 822. V a. Clinton formation, (com- 

 !0fc*O pare Sowerby, 1839; Murchison's Sil. Sys. 



6 



