> as lemmas
thecosomatous
thecosomatous adj.
Brit. 
/ˌθiːkə(ʊ)ˈsəʊmətəs/
, /ˌθiːkə(ʊ)ˈsəʊmətəs/U.S. /ˌθikəˈsoʊmədəs/
belonging to the Thecosomata, a group of pteropods having the body sheathed in a mantle-skirt. [After scientific Latlin Thecosomata (1824 or earlier).] /ˌθikəˈsoʊmədəs/ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > of types of > belonging to other groups of
encephalous1851
rhipidoglossate1869
cephalous1874
thecosomatous1878
rhipidoglossan1882
schizodinic1883
cryptodont1889
odontophoran1890
marginellid1917
1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 321 The velum is largest in the Gastropoda and the thecosomatous Pteropoda.
1888 P. Pelseneer in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. XXIII. 2 The Habits of the Thecosomatous Pteropods.
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as lemmas