Plate 78. 

 1-6. Cystechinus Loveni A. Ag. ; Station 3415. 



1. Specimen 88 mm. in length, seen facing the odd interambulacrum (PI. 76, fig. 3). 



2. The same as fig. 1, seen facing tlie odd anterior ambulacrum (PI. 76, fig. 2). 



3. Actinostome and adjoining plates of specimen about 85 mm. in length (fragment). 



4. Anal system of specimen about 88 mm. in length (fragment). 



5. Actinal view from the interior of the same specimen as fig. 3. 



6. Abactinal extremity of left anterior ambulacrum of same specimen as fig. 3, seen fitj 



the interior. 



I 



