272 THE OCEAN WORLD. 
size, which Lutken has since called Ophiocoma Riised. This 
Echinoderm, which lives in the seas of the Antilles, is furnished 
with five very flexible rays, which are armed with from three to four 
rows of spines, those on the upper part of the body being very hard 
Fig, 110.—Asterophyton verrucosum (Lamarck). 
ones; the body and arms of this creature are of reddish brown, 
streaked with a great number of little white lines. 
The principal type of the Euryalinz is the curious and complex 
Asterophyton verrucosum of Lamarck. This section includes the 
Ophiuroids remarkable for the extremely complicated development 
of their arms, the very multiplied ramifications of these, towards the 
extremities, being again divided into many thousand very slender 
appendages, the principal use of which is doubtless locomotion, but 
