CEPHALOPODA. SEPIOLADZ. 7 
ring, its external margin generally spinulose). Cloaca with an 
internal valve, near its external extremity. Lip beyond the 
annular reflexion, dilated into a membrane. Back furnished 
with a bone. 
Synopsis Familiarum. 
Fam. I. Serrotap#. Saceus ovalis, bursiformis. Pinne 
breves, ad apicem saltem lbere. Collum supra alté freena- 
tum, aut cum sacco coalescens. Os styliforme, corneum. 
Cloaca libera. 
Fam. II. Seprap#. Saccus subdepressus, posticé rotun- 
datus. Pinne ab apice usque ad sacci extremitatem productz. 
Collum \iberum. Os ovale, depresso-convexum, calcareum ; 
posticé corneum. Cloaca usque ad pedum inferiorum basin 
fere cum collo coalita. 
Fam. III. Loticinip. Saccus elongatus, teretiusculus 
posticé acuminatus. Pinne posticé coalescentes. Collum 
liberum. Os plumiforme, corneum. Cloaca ad apicem li 
bera, superné 4 freenata: freena per paria disposita. 
FAMILY I. SEPIOLADZ. 
Sae oval, bag-shaped. Fins short, their extremities at least 
free. Neck highly reined, or coalescing with the sac. Bone 
horny and linear. Cloaca free. 
Genus 2. SEPIOLA. 
Sepiola, Rondeleti, Leach. 
Pinne \aterali-dorsales, distantes, aliformes. Pedes ordinaru 
eequales. Antlie breviter pedunculatz, annulis corneis externé 
coarctatis obtusé spinulosis armate. Pedes supplementaru ad 
apices compresso-dilatati, antliati. Antlie pedunculis longis, 
annulisque spinulosis instructe. Collum posticé cum sacco 
coalescens. Saccus subtus utrinque ad corpus freenatus. 
Fins situated on the sides of the back, distant from each 
other, and resembling little wings. The eight usual legs, equa’ 
in length, their suckers with short peduncles, their extremities 
