Adacna laeviuscula
| Main Authors: | van de Velde, Sabrina, Yanina, Tamara A., Neubauer, Thomas A., Wesselingh, Frank P. |
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| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2020
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5018986 |
Daftar Isi:
- Adacna laeviuscula (Eichwald, 1829) (Fig. 4: 1). *1829 G. [lycymeris] laeviuscula Eichwald: 279, pl. 5, fig. 1. 1986 Adacna (Adacna) laeviuscula (Eichwald, 1831). – Yakhimovich et al.: 85, pl. 11, fig. 8. 2013 Adacna laeviuscula (Eichwald, 1829). – Bogutskaya et al.: 377, fig. 154, photo 48. Dimensions – max. L 32 mm, H 21 mm. Characterization – Large, subquadrate to subtrigonal thinshelled flat cardiid with strong posterior and slight anterior gape; dorsal margins relatively straight; relatively few ribs that are thin in juvenile stages and become very flat and separated by barely perceptible grooves in adult stages; hinge is a mostly edentulous, straight and flat ridge; in juvenile specimens a small cardinal tooth may be present that disappears in adult stages. Ecology – This species has been listed from the entire CS from water depths between 35 and 100 m in salinities of at least 4 psu (Bogutskaya et al., 2013; Logvinenko and Starobogatov, 1969). The common occurrence of fresh, paired specimens on exposed beaches of the middle Caspian (Turali, Russia; Sirvan, Azerbaijan: pers. observ. FW) demonstrates that A. laeviuscula has viable populations in foreshore settings above storm wave base indicating shallower habitats than previously reported.
- Published as part of van de Velde, Sabrina, Yanina, Tamara A., Neubauer, Thomas A. & Wesselingh, Frank P., 2020, The Late Pleistocene mollusk fauna of Selitrennoye (Astrakhan province, Russia): A natural baseline for endemic Caspian Sea faunas, pp. 1227-1239 in Journal of Great Lakes Research 46 (5) on pages 1230-1231, DOI: 10.1016/j.jglr.2019.04.001, http://zenodo.org/record/5019200