Beringius Golikov & Starobogatov 1975 ...
Subfamily Beringiinae Golikov & Starobogatov, 1975 Diagnosis. Shell large, siphonal canal short; growth determinate, aperture slightly thickened and projecting in mature shell; periostracum thin to relatively thick, flaking, adherent, or laminate. Protoconch, usually large, of several strongly p...
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| Format: | Text |
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Zenodo
2023
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| Online Access: | https://dx.doi.org/10.5281/zenodo.8399578 https://zenodo.org/record/8399578 |
| Summary: | Subfamily Beringiinae Golikov & Starobogatov, 1975 Diagnosis. Shell large, siphonal canal short; growth determinate, aperture slightly thickened and projecting in mature shell; periostracum thin to relatively thick, flaking, adherent, or laminate. Protoconch, usually large, of several strongly projecting whorls that only slightly increase in diameter. Operculum, large, dull, concave, with terminal nucleus, filling aperture when animal is retracted. Radula: Rachidian tooth reduced to a simple, acuspate plate. Egg capsules (of Beringius ) large, up to 40 x 47 mm, oval, flap-like, attached to the substrate along the bottom edge, and deposited in rows. Capsules bearing 1– 4 juveniles at hatching. Remarks: In the Aleutian Islands, 18 species four genera are recognized, including 11 species and two genera new to science. ... : Published as part of Mclean, James H. & Clark, Roger N., 2023, Seven new genera and thirty-four new species of buccinoid gastropods (Neogastropoda: Buccinidae) from the Aleutian Islands, Alaska, pp. 151-201 in Zootaxa 5351 (2) on page 158, DOI: 10.11646/zootaxa.5351.2.1, http://zenodo.org/record/8391375 ... |
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