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Marococandona, a new genus of Candonidae (Crustacea,Ostracoda) from Southern Morocco : morphological characteristicsand ecological requirements

Published online by Cambridge University Press:  15 February 2009

P. Marmonier ,
M. Boulal  and
B. Idbennacer
P. Marmonier
Affiliation:
Université de Rennes I, UMR- CNRS n°6553, Campus de Beaulieu, Bat. 14A, 263 Av. Général Leclerc, 35042 Rennes Cedex, France
M. Boulal
Affiliation:
Lycée Mohamed Reda Slaoui et centre des CPGE-AGADIR, Inezgane (Agadir), Morocco
B. Idbennacer
Affiliation:
69 Souk Dahmam,Guelmim, Morocco
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Abstract

A new genus of hypogean Ostracoda, Marococandona nov. gen. from wells and springs in the Guelmin and Agadir regions(Southern Morocco) is described. This genus is close to the genus Candonopsis, but can be distinguished from this latter by severalcharacteristics : the rectangular shape of the carapace, the reduction of the antenna chaetotaxy, the lack of sexual dimorphismin the male antenna, the lack of setae on the protopodite of the second thoracopod, and on the two first articles of the third thoracopodendopodite. M. danielopoli n. sp. has primitive characters, with a normally segmented antennula, a ‘t’ seta on the antenna,and normally developed furcal claws. In contrast, the morphology of M. nicolae n. sp. is regressed, with a 5 segmentedantennula, no ‘t’ setae on the antenna, and a reduced furca. The two species live in highly mineralised water and seem poorlysensitive to groundwater pollution.

Keywords

StygofaunaCandonopsisadaptationheterochronygroundwaternew genusnew species
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 41 , Issue 1 , March 2005 , pp. 57 - 71
Copyright
© Université Paul Sabatier, 2005

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