A monograph on the sub-class Cirripedia, with figures of all the species. By Charles Darwin [book]

Charles Darwin
1851 unpublished
Cirripedia pedunculo flexili, muscidis instruclo : scutis* musculo adductore solummodd instructis : valvis cceteris, siqum adsunt, in annulurn immobilem hand conjunctis. Cirripedia having a peduncle, flexible, and provided with muscles. Scuta* furnished only with an adductor muscle : other valves, when present, not united into an immovable ring.
doi:10.5962/bhl.title.2104 fatcat:4gixpcqe3jgapbsa7svnoofnuu