62 A. E. Verrill — New Genera and Species of Starfishes. 



oped, surrounded with slender webbed, projecting spines in 

 live groups of eight to ten each. The dorsal surface is covered 

 with a multitude of crowded slender spinnles, which project 

 above the marsupial membrane and give almost the appear- 

 ance of velvet pile, but in some places they form more or less 

 evident divergent stellate clusters of twelve to twenty spinules. 

 Seen from within these spinules are slender, 2 to 3 mm long, 

 very divergent, supported by slender columnar paxillse. The 



Fig. 5 



k 



Fig. 5. — Allasterias Rathbuni V. 



ambulacral grooves are broad and shallow. The ambulacral 

 plates are somewhat bilobed at the inner ends and distally are 

 somewhat imbricated. The adambulacral spines are long and 

 slender, about five or six in a transverse row, of which the 

 two inner ones are very small and slender, not half as long as 

 the outer ones, of which there are three or four, about 3'5 mm 

 long. The appressed actino-marginal spines are distinctly 

 longer and about twice as stout and blunt proximally, but dis- 

 tally, on the upturned part, where they are crowded, they 

 become about equal in length to the adam bulacrals and scarcely 



