ctenidiumn.
/tɪˈnɪdɪəm/ Zoology.
Each of the respiratory organs or gills of Mollusca, consisting of an axis with a series of processes on each side like the teeth of a comb.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > mollusc or shell-fish > parts of mollusc
ungulaa1382
mantlea1475
trunk1661
diaphragm1665
lid1681
operculum1681
ear1688
beard1697
corslet1753
scar1793
opercle1808
pleura1826
pallium1834
byssus1835
cephalic ganglia1835–6
opercule1836
lingual ribbon1839
tube1839
cloak1842
test1842
collar1847
testa1847
rachis1851
uncinus1851
land-shell1853
mantle cavity1853
mesopodium1853
propodium1853
radula1853
malacology1854
gill comb1861
pallial cavity1862
tongue-tootha1877
mesopode1877
odontophore1877
pallial chamber1877
shell-gland1877
rasp1879
protopodium1880
ctenidium1883
osphradium1883
shell-sac1883
tooth-ribbon1883
megalaesthete1885
rachidian1900
scungille1953
tentacle-sheath-
1883 E. R. Lankester in Encycl. Brit. XVI. 636/1 (Mollusca) These are the ctenidia or gill-combs. Usually..they play the part of gills, but since in many Molluscs (Lamellibranchs) their function is not mainly respiratory..it is well..to give them a non-physiological name such as that here proposed.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 450 In the majority of Gastropoda the primitive left ctenidium is aborted.
This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2018).
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n.1883