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TD OH 09 
Hm OF DO eR 
PROF. OWEN ON NEW AND RARE CEPHALOPODA. 169 
Loligopsis ocellata, Ow. 
. Oral environment, natural size. 
. Transverse section of cephalic arm, magnified. 
Sucker, showing denticulate hoop, magnified. 
. Upper mandible, natural size. 
. Lower mandible, natural size. 
. Gladius or “ pen,” less than natural size. 
PLATE XXVIL. 
Loligopsis ocellata, Ow. 
Ventral view, natural size. 
. Dorsal view of head and part of mantle, natural size. 
PLATE XXVIII. 
Ommastrephes ensifer, Ow. 
. Dorsal view, half natural size. 
. One of the largest suckers and denticulate hoop, natural size. 
PLATE XXIX. 
Onychoteuthis raptor, Ow. 
. Dorsal view. - 
. Ventral view, dissected. 
. Digestive organs. 
. Circulating and respiratory organs. 
(Natural size.) 
PLATE XXX. 
Enoploteuthis cooku, Ow. 
. Upper mandible. 
. Both mandibles or beak, with inner lip reflected. 
. Lower mandible. 
(Natural size.) 
