PLATE FZ— (Continued). 

 Agelacrinus {Lepidodiscus) CiNciNNATrENsrs Roem. 



Page 214, 



Fig. 7. A figure of a specimen from Cincinnati, Oliio, showing the characters of 

 the species. (Enlarged to two and one-half diameters.) 



Agelacrinvs {Lepi-dodiscus) pile us Hall, 1866. 



Page 214. 



Fig. 8. Figure of a specimen showing the rays, the oral plates and ovarian pyra- 

 mid. Along the depression, at the summit of three of the rays, may be 

 seen the minute pores passing between the plates. Many of the plates 

 in the interambulacral areas have a rounded node near the center. 



Fig. 9. A summit view of a larger individual of the same species. Collection of 

 Mr. C. B. Dyer. 



Fig. 10. View of one of the interambulacral areas, probably the posterior one, 

 limited by two of the rays, and showing a part of the mouth at the 

 summit, and the extremities of two other rays at the sides. The speci- 

 men has been crushed so as to conceal the other parts of the body. 

 Fig. 8 is enlarged to four diameters, and the others to three diameters each. 



Agelacbihus [Stbeptaster] vortwellatus Hall, 1866. 



Page 215. 



Fig. 11. A summit view of a partially crushed specimen, the five curving rays and 

 a portion of the imbricating plates of the body (2^ diameters). 



Fig. 13. A portion of the body of this species, still farther enlarged, to show the 

 arrangement of the plates of the margin. 



Fig. 13. A specimen, preserving the plates of the rays only. The other portions 

 of the body have been removed by weathering. (Enlarged to two diame- 

 ters.) Collection of Mr. C. B. Dyer. 



A gelacrinus Hamiltonensis. 



Agelacrinites Hamiltonensis Vanuxem. Geological Report, Third District, New Torlc. 

 Fig. 14. A view of the original specimen of this species (enlarged to two diameters) 



showing the arrangement of the plates, rays, etc. 

 Fig. 15. A portion of the border, still farther enlarged, to show the arrangement 



of the marginal plates. 



Cyclocystoides Salteri Hall, 1866. 



Page 218. 

 Fig. 16. Surface of specimen described (enlarged to three diameters). 



