PLATE XXXIX. 



CyATIIOPHYLLUSI ? PERLAMELLOSUM. 



Compare Avlachoiiliylhim snlcalum Edw.-Haime. Polyp. Foss. Terr. Palajozoiques, p. 355, pi. 6, flg. 3. 



Fig. 1. A small specimen, the view looking obliquely into the calyx and showing the deep anterior 

 fosset. There is a slight malformation of the lamellaa on one side. 



Fig. 2. The calyx of another specimen, showing the anterior fosset, and one on each side directed 

 obliquely forward. The lamelloe are finer than in the preceding specimen, and it may 

 possibly prove a distinct species. 



Fig. 3. A lateral view of an imperfect specimen. 



Fig. 4. The calyx of the preceding specimen, showing the deep anterior fosset. 



Fig. 5. An external anterior view of a well-preserved specimen, which is partially denuded of the 

 epitheca. 



Fitr. 6. Another view of the preceding specimen, showing the interior of the calyx, with the dis- 

 tinct narrow fosset. 



The specimens bear much resemblance to Anlachophyllum sulcatum Edwards & 

 Haime, but the lamellaj are more numerous, and the cellulose exterior portion of 

 the coral shows its generic affinities with Cyathophyllum or Heliophyllum. 



Cyathophyllum validum n. sp. 



Fig. 7. An anterior view of a large specimen, showing the primary lamella;, with the lateral second- 

 ary ones diverging therefrom. 



Fig. 8. A lateral view of the preceding specimen, showing the lateral primary and seconcfary lamelLe. 



Fig. 9. A view looking directly into the calyx. This beautiful robust form occurs in the TJppiT 

 Helderberg Limestone, near Batavia, and other places in Western New York, Ontari ), 

 and at the Falls of the Ohio. 



Amplexus Yandelli. 



Amplexus yandelli Etlw. -Haime. Polyp. Foss. Terr. Palaeozoiques, p. 314, pi. 3, figs. 2, 2 a. 

 Fig. 10. A figure of a somewhat distorted specimen, which is imperfect at the base. The lamellae 

 cf the calyx are somewhat more slender at.d extend more nearly to the center than 

 represented in the figures cited above. 



