acrostomy

English

Etymology

From acro- +‎ -stomy.

Noun

acrostomy (uncountable)

1. A morphotype characterized by bilateral symmetry and a mouth located at one pole of the body.
   • 1985, Polish Ecological Studies -Volume 10, Issues 1-2, page 81:

     In the Kampinos Forest, on the other hand, all substrates have been inhabited at majority (75%) by a morphotype called acrostomy.

   • 1991, Biology Bulletin of the Academy of Sciences of the USSR:

     Its morphological appearance (Fig. lb) is characterized by predominance of acrostomy ...

   • 2010, Valentyna Krashevska, Mark Maraun, Stefan Scheu, “Micro-and macroscale changes in density and diversity of testate amoebae of tropical montane rain forests of Southern Ecuador”, in Acta Protozoologica, volume 49, number 1:

     High frequency of species with acrostomy, eg species of the genera Euglypha, Assulina and Nebela, supports the conclusion that humidity is a major structuring force for testate amoebae at TH III.