Puiate 78. 
1-6. Cystechinus Loveni A. Ag.; Station 3415. 
Specimen 88 mm. in length, seen facing the odd interambulacrum (Pl. 76, fig. 3). 
. The same as fig. 1, seen facing the odd anterior ambulacrum (Pl. 76, fig. 2). 
_ Actinostome and adjoining plates of specimen about 85 mm. in length (fragment). 
g Y oO f=) 
Anal system of specimen about 88 mm. in length (fragment). 
. Actinal view from the interior of the same specimen as fig. 3. 
;. Abactinal extremity of left anterior ambulacrum of same specimen as fig. 3, seen from 
the interior. 
