Zoosphaerium, Pocock, 1895
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publication ID |
https://doi.org/ 10.5281/zenodo.5391729 |
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persistent identifier |
https://treatment.plazi.org/id/AA451447-2B08-FFE8-FE59-FC80FBB29E6C |
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treatment provided by |
Marcus |
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scientific name |
Zoosphaerium |
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KEY TO THE SPECIES- GROUPS OF ZOOSPHAERIUM View in CoL
1. Inner margin of anal shield with two well-visible black locking carinae, both carinae of same length and located closely to anal shield margin ( Figs 1 View FIG C-E; 7B). Both pairs of telopods elongated ( Fig. 2 View FIG ). Anterior telopods with only 1 stridulation rib, third joint without cavity ( Fig. 2 View FIG A-E). Third joint of posterior telopods without any spines or sclerotized spots ( Fig. 2 View FIG F-I) .................................................. Zoosphaerium neptunus View in CoL species-group
— Third joint of posterior telopod at least with small sclerotized spots ( Figs 10K View FIG ; 20K View FIG ) ... 2
2. Third joint of posterior telopods on its backside with more than 1 large, black, sclerotized teeth, hollowed-out margin towards second joint with 2 large membranous lobes ( Figs 10K View FIG ; 14L View FIG ) ............................................................... Zoosphaerium libidinosum species-group
— Third joint of posterior telopods without large teeth, or if black teeth present, then 2 large lobes not visible .......................................................................................................... 3
3. Third joint of posterior telopods remarkably thick, 1-2. times longer than wide, with single well-rounded tip. Hollowed-out margin towards second joint present only in apical part of third joint ( Figs 20J, K View FIG ; 30K, L View FIG ) ..................................................................... 4
— Third joint of posterior telopods slim or of normal width. Tip often curved or pointed. Hollowed-out margin towards second joint often present on entire inner surface of third joint ( Figs 34J, K View FIG ; 38 View FIG G-J) ...........................................................................................
4. Locking carinae of anal shield located closely to anal shield margin. Posterior (2nd) carina 2. -4 times longer than anterior carina. Apical margin of operculum extended into 2 well-rounded lobes ( Fig. 21A, B View FIG ). Third joint of posterior telopods tapering apically, sclerotized spots present only on its posterior side, joint 2-2. times longer than wide ( Figs 20J, K View FIG ; 23K, L View FIG ) .................................. Zoosphaerium coquerelianum species-group
— Locking carinae of anal shield located closely to last pair of laterotergites, far from anal shield margin. Second carina up to twice longer than first. Third joint of posterior telopods often greatly enlarged, less than twice longer than wide. Sclerotized spots on third joint of posterior telopods present often not only on posterior, but also on anterior side ( Fig. 30J, K View FIG ). First pair of stigma-carrying plates often greatly enlarged ( Fig. 30B, C View FIG ). Apical margin of operculum extended into 2 lobes with sharp, pointed tips ( Fig. 30F View FIG ). Female washboard on each side with single, strongly developed stridulation rib ............ ........................................................................ Zoosphaerium platylabum species-group
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.