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Observations on the species Cosmogneta kargi Grandjean 1963: protonymph and tritonymph. In addition to the study of gnathosoma

Lions, J.C.


1975 - Volume: 17 Issue: 2 pages: 346-363


Keywords

Acari Cosmogneta kargi head infracapitulum stenarthry gnathosoma adult developmental disorders nymph

Abstract

Observations sur l espece Cosmogneta kargi Grandjean 1963: la protonymphe et la tritonymphe. Complements a l etude du gnathosoma. A couple of immature stases (protonymph and tritonymph) of the species Cosmogneta kargi known only in the adult stase, are discribed. A study about the gnathosoma of the adult and its development is achieved. A case of stenarthry quite particular and exeptional in the infracapitul of a tritonymph is expounded. This discovery states important problems of an ontogenetic and phylogenetic nature.

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Article editorial history

Date published:
1975-12-15

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This work is licensed under a Creative Commons Attribution 4.0 International License
1975 Lions, J.C.

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