> 
6. 
PLATE G2. 
1-13. Aérope fulva A. Ag. 
Abactinal system of specimen 32 mm. in length; the same as Pl. 61, fig. 2; Sta- 
tion 3361. 
Abactinal system of specimen about 48 mm. in length with only two genital openings 
(fragment) ; Station 5361. 
Abactinal system of specimen about 50 mm. in length (fragment), seen from the 
interior; Station 3381. 
Actinostome of specimen about 35 mm, in length (fragment); Station 3399. 
Anal system of specimen about 35 mm. in length (fragment); Station 3399. 
Ambulacral plates of the right anterior ambulacrum with fourth interambulacral plate 
from the actinostome, seen from the interior, showing the mode of growth of the 
plates; Station 3399. 
Primary interambulacral tubercle near the actinostome; Station 3381. 
Primary interambulacral tubercle near the ambitus, with an elongated scrobicular 
area ; Station 5381. 
Primary interambulacral tubercle within the fasciole. 
Primary interambulacral radiole taken from the abactinal side. 
Primary interambulacral radiole from the ventral side. 
Fig. 10, seen in profile. 
Base and milled ring of primary interambulacral radiole. 
