98 Clark — On the Type Specimen of Alerto Parpurea. 



fourteenth brachials, then taper slowly distally. Syzygies occur between 

 the third and fourth brachials, again between the eleventh and twelfth to 

 thirteenth and fourteenth (usually in the latter position) and sixteenth 

 and seventeenth or seventeenth and eighteenth (usually in the latter 

 position) and distally at intervals of from three to five (usually four) 

 oblique muscular articulations. 



The pinnules resemble those of Comntula peclinata ; the second segment 

 of the second and third is more or less enlarged and carinate dorsally, 

 most marked on the former; the third segment is similarly, l)ut inucli 

 less noticeably, modified. 



Color, deep purple. 



Type locality. — New Holland. The type is in the Berlin .Aluseum. 



