| _version_ | 1866901740613271552 |
|---|---|
| author | Halse, Stuart A. Martens, Koen |
| author_facet | Halse, Stuart A. Martens, Koen |
| contents | <p><b><i>Bilocypris</i> gen. nov.</b></p><p>urn:lsid:zoobank.org:act: 5A47A7DD-B9FE-4703-9941-38EA85B53280</p><p><b>Type species</b></p><p><i>Bilocypris fortescuensis</i> gen. et sp. nov. (here designated).</p><p><b>Other species</b></p><p><i>Bilocypris mandoraensis</i> gen. et sp. nov.</p><p><b>Diagnosis</b></p><p>Valves higher in posterior half than anterior, LV overlapping RV on all sides. RV with marginal tubercles at least along anterior and postero-ventral margins; in between these zones RV with outer list; these marginal tubercles sometimes strongly developed. RV with anterior selvage sub-marginal and with posteroventral selvage more clearly inwardly displaced. LV anteriorly with blunt inner list parallel to valve margin. A1 with all segments of normal length/width ratio. Second segment of Mx1 palp slightly longer than basal width, not curved. Seta d2 on T2 absent. CR in both male and female moderately curved and slightly expanded in proximal part; attachment to CR uniramous, i.e., distally not bifurcated. Hemipenis in males with lobe ms bilobed, lobe ls of equal length to ms. Females in both species in this genus with large, rounded genital lobes.</p><p><b>Etymology</b></p><p>The name of this new genus refers to the fact that lobe ms of the hemipenis is bilobed. We have abbreviated ‘bilobe’ to ‘bilo’ for convenience.</p><p><b>Differential diagnosis</b></p><p><i>Bilocypris</i> gen. nov. has valve characteristics that are similar to those in <i>Heterocypris,</i> but differs from all other genera in the Cyprinotinae by the structure of the hemipenis, which consists of a bilobed ms and a lobe ls of the same length as the ms.</p><p>The new genus can be distinguished from <i>Cyprinotus</i> by the absence of the dorsal hump on the RV, from <i>Hemicypris</i> and <i>Homocypris</i> by the fact that the LV overlaps the RV (inverse in <i>Hemicypris</i>; valves symmetrical in <i>Homocypris</i>) and from <i>Riocypris</i> by the absence of seta d2 on limb T2, among other features.</p><p><b>Distribution</b></p><p>Both species in the genus are known from northwest Western Australia (Pilbara and southern Kimberley regions).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_5927623 |
| institution | Zenodo |
| language | |
| publishDate | 2019 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Bilocypris Halse & Martens 2019, gen. nov. Halse, Stuart A. Martens, Koen Biodiversity Taxonomy Animalia Arthropoda Ostracoda Podocopida Cyprididae Bilocypris <p><b><i>Bilocypris</i> gen. nov.</b></p><p>urn:lsid:zoobank.org:act: 5A47A7DD-B9FE-4703-9941-38EA85B53280</p><p><b>Type species</b></p><p><i>Bilocypris fortescuensis</i> gen. et sp. nov. (here designated).</p><p><b>Other species</b></p><p><i>Bilocypris mandoraensis</i> gen. et sp. nov.</p><p><b>Diagnosis</b></p><p>Valves higher in posterior half than anterior, LV overlapping RV on all sides. RV with marginal tubercles at least along anterior and postero-ventral margins; in between these zones RV with outer list; these marginal tubercles sometimes strongly developed. RV with anterior selvage sub-marginal and with posteroventral selvage more clearly inwardly displaced. LV anteriorly with blunt inner list parallel to valve margin. A1 with all segments of normal length/width ratio. Second segment of Mx1 palp slightly longer than basal width, not curved. Seta d2 on T2 absent. CR in both male and female moderately curved and slightly expanded in proximal part; attachment to CR uniramous, i.e., distally not bifurcated. Hemipenis in males with lobe ms bilobed, lobe ls of equal length to ms. Females in both species in this genus with large, rounded genital lobes.</p><p><b>Etymology</b></p><p>The name of this new genus refers to the fact that lobe ms of the hemipenis is bilobed. We have abbreviated ‘bilobe’ to ‘bilo’ for convenience.</p><p><b>Differential diagnosis</b></p><p><i>Bilocypris</i> gen. nov. has valve characteristics that are similar to those in <i>Heterocypris,</i> but differs from all other genera in the Cyprinotinae by the structure of the hemipenis, which consists of a bilobed ms and a lobe ls of the same length as the ms.</p><p>The new genus can be distinguished from <i>Cyprinotus</i> by the absence of the dorsal hump on the RV, from <i>Hemicypris</i> and <i>Homocypris</i> by the fact that the LV overlaps the RV (inverse in <i>Hemicypris</i>; valves symmetrical in <i>Homocypris</i>) and from <i>Riocypris</i> by the absence of seta d2 on limb T2, among other features.</p><p><b>Distribution</b></p><p>Both species in the genus are known from northwest Western Australia (Pilbara and southern Kimberley regions).</p> |
| title | Bilocypris Halse & Martens 2019, gen. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Ostracoda Podocopida Cyprididae Bilocypris |
| url | https://doi.org/10.5281/zenodo.5927623 |