Xestoleberis sp. 1

Antonietto, Lucas Silveira, Machado, Cláudia Pinto, Carmo, Dermeval Aparecido Do & Rosa, José Wilson Correa, 2012, Recent Ostracoda (Arthropoda, Crustacea) from São Pedro-São Paulo Archipelago, Brazil: a preliminary approach, Zootaxa 3335 (1), pp. 29-53 : 40

Xestoleberis sp. 1

Fig. 6 :13–20

Material. 74 specimens (MP-612, MP-747 and MP-748).

Figured specimens. CP-491, CP-492, CP-493, CP-496 and CP-497 (carapaces); CP-494 (valve) ( Tab. 9).

Remarks. Xestoleberis sp.1 may represent a new species for the genus. However, the genus Xestoleberis lacks abundant characteristic ornamentation, and most described species rely on appendage study for identification ( Klie 1939, 1940; Rome 1942; Skogsberg 1950; Hartmann 1954, 1959, 1962, 1964, 1965, 1978, 1979; Schornikov 1975; Athersuch 1978; Bate et al. 1981; Bonaduce & Danielopol 1988; Wouters 2003). Considering the lack of appendages in the present material, the specimens are described in open nomenclature.

Figures

FIGURE 6. Ostracods from São Pedro-São Paulo Archipelago, Northeastern Brazil. 1–5. Paradoxostoma sp. 1. 1–4. Adult valve, CP-482. 1. Right view. 2. Right internal view. 3. Central muscle scar in detail. 4. Interpretation of the central muscle scar. 5. A-1? carapace, CP-484, right view. 6–8 Paradoxostoma sp. 2, Adult carapace, CP-508. 6. Right view. 7. Left view. 8. Dorsal view. 9–12. Xestoleberis toni? Wouters, 2003. 9–11. Adult carapace, CP-506. 1. Left view. 2 Right view. 3. Dorsal view. 4. Adult valve, CP-490, internal view. 13–20. Xestoleberis sp. 2. 13–14. Adult carapace, CP-498. 13. Right view. 14. Left view. 15–17. Adult valve, CP-502. 15. Left internal view. 16. Central muscle scar in detail. 17. Interpretation of the Central muscle scar. 18. A-1? carapace, CP-499, right view. 19. A-4? carapace, CP-501, left view. 20. A-5? carapace, CP-503, right view. Scale = 100 µm.