Acephala
Definition from Wiktionary, the free dictionary
Contents |
[edit] Translingual
[edit] Etymology
New Latin, from Greek akephala, neuter plural adjective, headless. See Acephal
[edit] Proper noun
Acephala
- (zoology) That division of the Mollusca which includes the bivalve shells, like the clams and oysters; -- so called because they have no evident head. Formerly the group included the Tunicata, Brachiopoda, and sometimes the Bryozoa. See Mollusca.
- 1854, Philip Henry Gosse, Natural History, page 57:
- Naturalists arrange the Mollusca in six classes, named Cephalopoda, Pteropoda, Gasteropoda, Conchifera, Brachiopoda, and Tunicata. Of these the first three are sometimes distinguished as Encephala, or furnished with a head; the last three as Acephala, being destitute of that organ.
- 1854, Philip Henry Gosse, Natural History, page 57: