Anthalona verrucosa pectinata ( Elías-Gutiérrez & Suárez-Morales, 1999 ) DAMME, KAY VAN, SINEV, ARTEM YU & DUMONT, HENRI J., 2011
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publication ID |
https://doi.org/ 10.11646/zootaxa.2875.1.1 |
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persistent identifier |
https://treatment.plazi.org/id/0390471D-FFD4-1800-FF22-D40D691ECAAF |
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treatment provided by |
Felipe |
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scientific name |
Anthalona verrucosa pectinata ( Elías-Gutiérrez & Suárez-Morales, 1999 ) |
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comb. nov. |
Anthalona verrucosa pectinata ( Elías-Gutiérrez & Suárez-Morales, 1999) comb.nov.
( Fig. 24 View FIGURE 24 )
Alona pectinata Elías-Gutiérrez & Suárez-Morales, 1999 .
Material examined. Five parthenogenetic females from Mahajual, Yucatan Peninsula, Mexico, Leg. A.A. Kotov, 2003. Three specimens deposited under RBIN IG 31782 INV 96757 -96758.
Description. Parthenogenetic females. Described by Elías-Gutiérrez & Suárez-Morales (1999). Only some notes accompanying Figure 24 View FIGURE 24 are presented here, to compare with A. verrucosa verrucosa ( Sars, 1901) : Habitus variable according to original description and average of 0.29mm, dimensions length/height about 1.6 ( Figs 24A– B View FIGURE 24 ). No strong expanded posterior portion, no strong differentiation in marginal setae ( Fig. 24A View FIGURE 24 ) and no ornamentation on carapace ( Fig. 24B View FIGURE 24 ).
Main head pores at some distance from lateral pores ( Fig. 24D View FIGURE 24 ), up to two IP lengths.
Second antennae as for genus but with thickened spinules and long terminal spines, exopod spine 1.8 times terminal segment ( Fig. 24D View FIGURE 24 ).
Postabdomen ( Fig. 24E View FIGURE 24 ) short, but with relatively long marginal teeth ( Fig. 24F View FIGURE 24 ). Distal spine in (distal) lateral fascicles reaching beyond marginal denticles, by maximally a third of the spine length ( Fig. 24H View FIGURE 24 ). Basal spine of postabdomen just longer than basal claw width ( Fig. 24G View FIGURE 24 ).
Five limb pairs, as for genus, all without long projections on epipodites (e.g., Fig. 24O View FIGURE 24 ).
First limb typical, but with few (about six) teeth in the long setae of second endite ( Fig. 24I View FIGURE 24 ). ODL seta as long as longest IDL seta ( Fig. 24J View FIGURE 24 ). IDL setae with modified armature, basal spines shorter than distal part of the seta (beyond the basal spine) ( Fig. 24K View FIGURE 24 ).
Second limb ( Fig. 24N View FIGURE 24 ) with eight scrapers of which third and sixth modified, the latter with eight to nine stronger teeth ( Fig. 24M View FIGURE 24 ). Third limb with six setae on exopodite, of which the first markedly longer than second, fourth and fifth setae similar in length (fifth just longer).
Fourth limb ( Fig. 24O View FIGURE 24 ) with first three exopodite setae of similar lengths, and final three shorter; seta four as long as sixth, and fifth sticking out in between as the longer one ( Fig. 24O View FIGURE 24 ).
Fifth limb in Elías-Gutiérrez & Suárez-Morales (1999).
Differential diagnosis. A. verrucosa pectinata is relatively small (0.29mm); the posterior group of setae on the carapace is not as marked as in A. verrucosa verrucosa . It differs mainly in IDL morphology, with less pronounced armature, and lacks long projections on the limb epipodites. The terminal spine on second antenna (exopod) is relatively longer in ssp. pectinata .
Distribution and ecology. Yucatan Peninsula, Mexico; originally from permanent waters; a scraper associated with periphyton ( Elías-Gutiérrez & Suárez-Morales 1999).
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.
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Anthalona verrucosa pectinata ( Elías-Gutiérrez & Suárez-Morales, 1999 )
| DAMME, KAY VAN, SINEV, ARTEM YU & DUMONT, HENRI J. 2011 |
Alona pectinata Elías-Gutiérrez & Suárez-Morales, 1999
| Elias-Gutierrez & Suarez-Morales 1999 |