NOMINA CIRCUMSCRIBENTIA INSECTORUM

CONTENTS

REFERENCES

                                                   

Typified names:

Monostomata Huxley 1875

NOMEN: Monostomata Huxley 1875 [T.H. Huxley. On the classification of the animal kingdom. - The Journal of the Linnaean Society. Zoology, 1875, 12 (59): 199-226]

ORIGINAL LISTED MEMBERSHIP (Huxley 1875): Rotifera + Turbellaria + Trematoda + Nematoidea + Annelida (Hirudinea + Oligochaeta + Polychaeta) + Cnidaria (Hydrozoa + Actinozoa) + Ctenophora + Arthropoda + Brachiopoda + Enteropneusta + Chaetognatha + Mollusca + Echinodermata + Chordata (Tunicata + Vertebrata)

JUNIOR CIRCUMSCRIPTIONAL SYNONYMS:

= Eumetazoa Bitschli 1910
= Neuromyaria Lameere 1927  

= Gastraeozoa Nielsen 1985

= Neuralia Nielsen 2008

NON-MONOSEMANTIC CIRCUMSCRIPTIONAL SYNONYM (distinctly without Placozoa):

= Gastraeozoa Nielsen 1985

TYPIFIED NAME IN BASIC FORMAT: Araneus/fg (sine Spongia; incl. Fasciola, Medusa) [f:(1757)1758]
TYPIFIED NAMES IN USE: -

MODERN STATUS: the valid, the oldest name of a generally accepted, holophyletic taxon. 

Systematic position of Monostomata:

Metazoa Haeckel 1874
  Porifera
Grant 1836 (= Polystomata Huxley 1875)
  Placozoa
Grell 1971
  Orthonectida
Giard 1877
  Rhombozoa
Van Beneden 1882
  Monostomata
Huxley 1875
 

COMMENT. Originally (Huxley 1875) Cestoidea and Acanthocephala were not included into Monostomata: they were placed to a taxon Agastreae which was opposed to Gasterae (= Porifera + Monostomata). However, the author noted that the taxon Agastreae was establishes only provisionally, and "probable as it may be that these are Gastraea with aborted digestive cavities"; he also wrote that Cestoidea are "closely allied with the Trematoda". Thus, estimating the admissible membership of the name Monostomata, we must not regard Cestoidea and Acanthocephala as belonging to the originally excluded membership, and, thus, the name Monostomata can be applied for a taxon which includes Cestoidea and Acanthocephala.