FAMILY 7. PARASITICA. Aa 
“I 
On 
Pl. CCXXV. Fig. 2 and 3. 
(The same magnified.) 
Pl. CCXXV. Fig. 4. 
SryLiFEr astericota, Broderip. Sowerby, Genera of Shells, No. 38. 
Pl CCXXYV | Fig: 5. 
(Portion of Star-fish, showing the same imbedded therein.) 
Pl. CCXXV. Fig. 6 and 7. 
(The same magnified.) 
ANATOMY OF STYLIFER ASTERICOLA. 
(Communicated by Prof. Owen.) 
Pl. CCXXV. 
Fig. 8.a. Anterior or oval aperture in the reflected portion of the mantle. 
b. Thickened margin of the reflected portion of the mantle. 
.a. Margin of the reflected fold of the mantle. 
b. Lobes of the foot. 
ec. Visceral mass protected by the shell. 
a. Margin of the reflected fold of the mantle. 
b. Apex of the visceral mass formed by the generative organ. 
c 
d 
e 
a 
b 
c 
tf 
Je 
a) 
- 
. Retracted mouth. 
. Base of the visceral mass formed by the liver and intestine. 
. Tentacles. 
. Ovarium, and part of the oviduct. 
. Mass of liver and intestine. 
. Mucous glands attached to the mantle which secrete the nidus 
of the ova. 
Fig. 12.a. Testis. 
b. Glandular vas deferens. 
c. Mass of liver and intestine. 
d. The two pectinated branchiz. 
