+ Ske Tt Me 
from the Island of Malta. 117 
Puate VII. 
Fig. 1. Hemiaster Scille: a, the upper surface, showing the ambulacral 
star and peripetal fasciole, natural size; b, the under surface of 
the same test; ¢, a lateral view, to show the great height of this 
species ; d, the perforated tubercles and encircling granules, mag- 
nified; e, a portion of the single ambulacrum, showing the 
arrangement of the pores; f; a portion of a poriferous zone. 
Fig. 2. Hemiaster Cotteauii: a, the upper surface, natural size; 6, the 
perforated tubercles, with their circles of granules; c, portion of 
a poriferous zone ; d, portion of»the peripetal fasciole, with its 
boundary granules. 
Fig. 3. Scalaria Duciei: a, shell, the natural size ; 5, a fragment showing 
the mouth. 
Fig. 4. Lenticulites complanatus: 4, natural size of this Foraminiferous 
shell; 5, a section magnified, showing the cells:—large rocky 
masses of this fossil occur in the yellow sand associated with the 
Urchins of that deposit. 
