a 
4. 
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PLatE 68. 
1-5. Hchinocrepis setigera A. Ag.; Station 3399. 
Interior view of the actinal face of specimen 92 mm. in length (PI. 67, fig. 1). 
Interior view of abactinal face of same specimen (PI. 67, fig. 2). 
Knlarged view of anal system and posterior part of test, seen from the actinal side of 
oS J Pp ’ 
same specimen (Pl. 67, fig. 1). 
Enlarged view of apical part of the posterior ambulacra and odd interambulacrum of 
the same specimen as fig. 2, seen from the interior. 
Primary interambulacral tubercle with surrounding secondaries and miliaries of an 
actinal plate from the left posterior interambulacrum. 
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