plagiostomy
English
Etymology
plagio- + stoma + -y
Noun
plagiostomy
- (biology) An adaptation in which the mouth is diminished, firmly closed, and located on the ventral side protected deeply within a carapace.
- 1922, Proceedings of the Section of Sciences - Volume 25, page 375:
- From its original subcerebral position (orthognathism) it shifts into a precerebral position (proguathism). That in connection with this rotation plagiostomy changes into teleostomy we will pass over in silence, although this phenomenon would give amble scope for interesting observations.
- 1991, Biology Bulletin of the Academy of Sciences of the USSR, page 279:
- They are comparatively large, without outgrowths, of a rounded shape, with a flattened ventral surface and cryptostomy or plagiostomy with a lip.
- 2012, A Burgers, Soil Biology, page 170:
- Two other morphological features, plagiostomy and cryptostomy, are considered to be adaptations to life in soil; both involve a reduction in the size of the pseudostome in proportion to the test and the formation of a vestibule (Fig. 11) and both tend, therefore, to protect the cell against dessicaation (Bonnet, 1961a, 1964).
-