PLiTYCRlMD.f:. — CARIOCKINL-S. 



53 



Genus IV. CARIOCRINUS. (Sxy.) 

 Elym. KAPis (Caris,) The Sea Onion ? 



Definition.— Dorso-central plate quadrupartite (1.); first series of perisomic plates, 

 six (2.) ; second series, eiglit (3.) ; on which the upper series, or ray-bearing plates 

 rest. 



1. Species. Cariocrinus ornatus. (Say.) 

 PL VII. fig. 3, a to m. 



Definition. — Dorso-central plate quadrupartite ; first series of perisomic plates, six • 

 second series eight, six of which are more regularly hexagonal than the other two, whose 

 upper edges are straight and prolonged above the superior angles of those on either side of 

 them. On the upper sloping edges of the six, with the sahent angles pointmg upwards, 

 rest a series of small plates which bear the rays. 



Synonymes and- References. 

 Caryoorinus ornatus. — Say. Joum. Ac. of Nat. Science, Philadelphia, Vol. 4, No, 9. 

 Zool. Joum. Vol. 2, p. 311, t. n,fig. 2. 



