6 LIST OF THE OPHIUPJD.E AND ASTROPHYTID.E. 



Astrocxipa isidis Lym. Barbadoes? H. E. 



Astroporpa axxilata Ltk. Barbadoes; 100 fathoms. H. E. 



Astrogompiius vallatos Lym. Sombi i l.lti : 1 28 fathoms. W. S. — Off Sand Key j 



270 fathoms. W. S. 

 Ophiocreas ixmbricts Lym. Off Sand Key; 75-128 fathoms. W. S. 



The above list of seventy-six species, whereof nineteen are new, may be called a remarkable 

 one. It embraces depths from the littoral zone to 421 fathoms, the greatest number of h 

 inc things having been brought up in 100 fathoms, off the Barbadoes. Thence came the simple- 

 armed Astrophytons, thus far chiefly characteristic of the West Indies, though exploration may 

 find others elsewhere, since already we have an A From the Great Ocean, .1 



from the Straits of Magellan, and Astronyx from North Europe. The West-Indian fauna is 

 extended to 1' y Ophioceram That of extreme South America shows a 



resemblance to the northern, since Opft . Ophioglypha Lymani, and At&rophyton 



Pourtahsii are comparable to 0. Ballii, 0. ciliata, and A. Linckii of the opposite zone. Other 

 species, however, such as Astrotoma Agassizii and the Amphiurce do not bear out this resem- 

 blance. From Chili comes an Amphiura not to be distinguished from A. squamala of the north- 

 ern seas. The genus OphiotcdUx, thus far known from polar waters only, finds a representative 

 in the West Indies. In my generic distinctions, especially those which centre about Ophia 

 I desire not to be held strictly accountable : the classification needs a revision which we have 

 not yet materials to warrant. 



