PLATE I. 



Page. 



ACTlNOtlUNUfl 8AMP80N1. U. Sp 5 



Fig. 1. View opposite the azygous Aide. 

 Fig. "2. Azygous side on the right. 



ACTINOCBINUS PETTI8KN8I8, n. 8p 6 



Fig. 3. Azygoue view. 

 Fig. 4. Opposite view. 



PlIYSETOCRINUB 6AMPSONI, n. Bp 14 



Fig. 5. Azygoue view. 

 Fig. 6. Opposite view. 

 Fig. 7. Summit. 



DORTCRINUS PABKRl, D. Bp 19 



Fig. 8. Azygous view. 

 Fig. 9. Oppoeite view. 

 Fig. 10. Summit. 



UATOCR1NU8 NODUSAUIUB, Tl. 8p -, 22 



Fig. 11. Lateral view, azygouH 8i<ie to the rij^ht. 

 Fig. I'i. Summit. 



Batocrincs i.kvis n. ep ... 23 



Fig. 13. Basal view. 

 Fig. 14. Azygous view. 

 Fig. 15. Summit. 



Batocbinits bnodis, n« sp 26 



KIg Ul. Busal view. ' 

 Pig. 17. Azypons view. 



Fig. 18 Summit. 



B.TOCRINl'9 COMIM.ANUTUe, n. Sp 27 



Fig. 19. Azygous view. 

 FiE. 20. Opposite view. 



BaTOCRINUH LEVIOATUB, n. 9p ■ , i 29 



Fig. 21. Azygoue view. 

 Fig. 22 Opposite view. 



BaToOKINITS I'OIJTO!*, d. sp 31 



Fig. '-22. Basal view. 



Fig. 24. Azygous view. 



Fig, 25. Summit. 



BATOCUINPS Ol.AItBU, n. 8p j 32 



Fig. ;26. Azygoue view. 



Fig. 27. Opposite side of the same. 



Fig. 28. Opposite aide of another epeclmen. 



