Lyrio. 



366 



Lyriocrinus dactylus, Hall, {Marsupiocrinites? dactylus) 



5 



H'^'-y.b 



pJ/5. 



4tli Distr. 

 N. Y., fig. 

 41 bis, 4, 5 ; 

 fig. 5 rep. 

 res enting 

 very clear- 



-^y^ ^^^ ^^" 



' * ^^ftBB ^B H||H rangment 



^\A D j]7™™"™™**W of thecoral 



plates, slightly ornamented. The stem, on which the head 

 grew, is composed of two series of plates, one extending be- 

 yond the other, and ornamented around their edges. (See Hall 

 Pal. N. Y. Vol. 2, 1852.) Niagara, VI, 



Lyriocrinus melissa, Hall. From Collett's Indiana Re- 

 port of 1881, p. 269 plate 14, figs. 18 to 28 ; also plate 15, f. 11. 

 Of these I have selected f. 18, summit of a large individual, 

 showing evidence of a nearly central proboscis ; f. 19 base of 

 large imperfect cup; f. 20, 21, very symmetrical specimen, 

 usual form up to the bases of the arms ; f. 22, ordinary size • 

 five- sided ring where the stalk was set into the head, plates 

 beautifully striated; f. 23, side enlarged twice ; f. 25, bottom 

 of same, showing the nodes on the {continued on p. S77.) 



Lyriopecten alternatus, 



^i- 



A 



A 



::»..;l 



n. s. 



mi 





A.P.S 





M^|j|r|iil:|-:|||\|\%*-:|^ 



Tr.l889. "'^-=^^. 



Simpson Tians. Amer. 

 Philos. Soc. Philada., 

 1889, page 446, fig. 12, 

 founded on specimens 

 No. 9552, 9953, in Ean- 

 dall's collections, one 

 mile north of Warren, 

 Pa., wrongly labeled 

 Aviculopecte7i. — Che - 

 mungf VIIIg^—^OTE, 

 Full descriptions of this 

 and as many of the 

 other new species as 

 could not come here 

 will be given in the 

 Appendix. 



