170 PROF. OWEN ON NEW AND RARE CEPHALOPODA. 
PLATE XXXII. 
Enoploteuthis cookii, Ow. 
1. Vertical longitudinal section of mouth, natural size. 
Fig. 2. Ventral surface of pinnigerous termination of body. 
3. Dorsal surface of pinnigerous termination of body. 
4. Section of pinnigerous termination of body. 
(Figs. 2-4 much reduced.) 
PLATE XXXII. 
Enoploteuthis cookii. 
. Terminal portion of a cephalic arm, natural size. 
. Cut end of ditto. 
. Section of basal part of ditto. 
. Section of uncigerous acetabulum. 
. 4'. Outline of ditto, magnified. 
. 5. Section of uncigerous acetabulum. 
. 5'. Outline of ditto, magnified. 
. 6. Section of systemic ventricle, natural size. 
f dQ da 
Bm OF DS eH 
Coico Meo McoMes 
gg de gg 
dq 09 da 
PLATE XXXIII. 
Fig. 1. Restoration of Enoploteuthis cookii. 
Fig. 2. Tentacle of Architeuthis princeps, less than natural size. 
PLATE XXXIV. 
Plectoteuthis grandis. 
Fig. 1. Dorsal surface of cephalic arm and vela, from a section near the base. 
Fig. 2, Acetabuliferous surface of termination of the arm. 
(Natural size.) 
PLATE XXXvV. 
Plectoteuthis grandis. 
Fig. 1. Transverse section of non-acetabuliferous base of cephalic arm. 
_’ Fig. 2. Acetabuliferous surface and vela of basal part of the arm. 
ras Fig. 3. Side view of a basal acetabulum. 
(Natural size.) 
