For example, some Cuttle-fishes or Cephalopoda have eight arms or tentacles and others ten.
2
The Mollusks were also represented then, as now, by their three classes,-Acephala ,Gasteropoda ,andCephalopoda.
3
Therefore, we may infer that the simplest forms of the Cephalopoda took precedence of the more complex in time.
4
The third and highest class of Mollusks has been called Cephalopoda, in reference again to a special feature of their structure.
5
"Squid, ordinary squid from the class Cephalopoda?"
6
French fishermen give them the name "cuckoldfish," and they belong to the class Cephalopoda, family Dibranchiata, consisting of themselves together with cuttlefish and argonauts.