PROFESSOR OWEN ON THE BELEMN1TE. 
85 
PLATE VI. 
Fig. 1. The specimen from the collection of William Cunnington, Esq. 
Fig. 2. A magnified view of one of the horny hooks. 
Fig. 3. A magnified view of part of the head with the fibrous bodies supposed to 
belong to the eyes. 
PLATE VII. 
Highly magnified views of the spathose and muscular textures of the Belemnite. 
Fig. 1. A portion of a transverse section of the fibrous guard, 
y. The lines indicating the prismatic fibres. 
1 3. The lines indicating the layers of growth. 
s. The triangular specks produced by abrasion of the surface. 
Fig. 2. Longitudinal section of the fibrous guard, across the prismatic fibres, 
Fig. 3. Primitive muscular fibres of the Onychoteuthis Banksii , showing transverse 
strise, similarly magnified. 
Fig. 4. Primitive muscular fibres of the Belemnites Owenii magnified 600 diameters, 
linear. 
PLATE VIII. 
Restoration of the Belemnite, according to the structures observed in the specimens 
preserved in the Oxford clay at Christian-Malford. 
The same letters indicate the same parts as in the foregoing figures. 
d'. The continuation of the mantle over the phragmocone and guard of the internal 
shell of the Belemnite. 
