384 AxxAi.s OF THE Carnegik Musel'.m. 



Fauna. Bulletin of the New York State Museum, number 49. 



Mentions Ampyx ha Hi and Reinipleitrides canadeitsis in comparisons. 

 1902. Raymond, V. E. The Crown Point section. P.ulletin of American 

 Paleontology, volume 3, number 14. 



Gives lists of Chazy fossils, including trilobites and figures Tlialeops ovatiis. 



EXI'I.ANATION OF Pl.ATKS.l 



Plate 10. 



1. Ilarpina aiitii/itatiis Billings. A cephalon, enlarged two diameters. 



2. Ilarpina oltajuaensis Billings. An imperfect cephalon, enlarged two diameters. 



3. LonchoJomas Jialli'^WWw^'i. A cranidiuni, enlarged two diameters. 



4. The same species. Side view of cranidiuni, showing the upward slope of the 

 rostrum, enlarged two diameters. 



5. The same species. A pygidium and two thoracic segments, enlarged four 

 diameters. 



6. Posterior view of the same, enlarged four diameters. 



7. The same, side view, enlarged four diameters. 



8. Remiplenrides canadensis Billings. Side view of cephalon, twice natural size. 



9. The same, dorsal view, twice natural size. 



10. The same species. Pygidium and last live thoracic segments, four times 

 natural size. 



11. Bathynnts a)i^fH)ii Billings. A cranidium, one third larger than the specimen. 



12. The same species. A pygrdium, one third larger than the specimen. 



13. Bathyurfllus i>revispinus Raymond. A cephalon, enlarged two diameters. 



14. The same, side view, enlarged two diameters. 



15. The same species, dorsal and profile views of a cranidium, enlarged two 

 diameters. 



16. Bathyurcllus minor Raymond. A pygidium, enlarged four diameters. 



17. Asaphus marginalis Hall. A small cranidium. 



18. The same species. Free cheek of a somewhat larger individual. 



19. The same species. A small pygidium. 



20. The same species. A slightly larger pygidium showing a peculiar projection 

 on its posterior end. 



21. Isotelus hcarsi Raymond. A cranidium, the eye stalks broken. 



22. Front view of a larger specimen of the same species showing eye stalks. 



23. The same species. Dorsal view of free cheek. 



24. The same, lateral view. 



25. A small pygidium belonging to this species. 



Plate ii. 



An outline drawing of a restoration of Asap/iits //larginalis Hall. One half the 

 natural size indicated by fragments in the Carnegie Museum. 



1 Where not otherwise indicated, the figures are natural size. 



