CHAKACTEKISTIC DEEP-SEA TYPES. 



CKINOIDS. 



121 



Challenger, the Blake, the Talisman, and by the U. 8. Fish 

 Commission ; it has a very wide geographical distribution, hav- 



m 





Fig. 411. — Rhizocrinus lofo- 

 tensis. ^. (Sars «& Carpenter.) 



Fig. 412. 



Rhizocriuus Rawsoni. ^. (Carpenter.) 



ing been found as far north as the 

 Lofoten, and as far south as 35° south 

 latitude. It is very common in the 

 Gulf of Mexico, the Caribbean, and 

 along the east coast of the United 

 States. It is of a brownish-chestnut 

 color when alive, varying from that 

 to a dirty Avhite. li. Rawsoni, a 

 second species (Fig. 412), was first 

 dredged by the " Porcupine " off Cape 

 Clear, but the specimens were con- 

 sidered a variety of the other species. 



