Chrissia Hartmann, 1957
publication ID |
https://doi.org/ 10.26107/RBZ-2023-0033 |
publication LSID |
lsid:zoobank.org:pub:3ED84353-0756-47B5-885E-0FEF35F2594F |
DOI |
https://doi.org/10.5281/zenodo.8222336 |
persistent identifier |
https://treatment.plazi.org/id/03B187A8-FFA8-655C-8AD6-453E112E03E7 |
treatment provided by |
Felipe |
scientific name |
Chrissia Hartmann, 1957 |
status |
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Genus Chrissia Hartmann, 1957 View in CoL
Diagnosis (modified from Martens, 2001). Cp medium to large (length c. 1.5 – 3.5 mm), elongated or reniform shaped and laterally compressed; RV and LV without selvages; anterior calcified inner lamella well-developed, with or without inner list, inner list (if present) situated very close to valve margin; marginal septa absent; fused zone wide, pore canals straight along anterior and posterior margins, branched along ventral margin, false pore canals present, especially ventrally; Rome organ on A1 small, not segmented; natatory setae on A2 of medium length (reaching not beyond tip of end claws); terminal segment of Mx1 palp rectangular and elongated (length c. 2-3 times of width); setae d1 and d2 on T2 short, subequal; CR asymmetrical, Sp seta absent, spines on ventral margin of right ramus larger than on left ramus, sometimes very long and stout; hemipenis without hook-like process on medial shield, up to two additional internal coils of spermiduct.
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