Protobranchia Pelseneer 1889
| Main Authors: | Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José, Serrano, Alberto |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5837816 |
Daftar Isi:
- Key to genera and species of Protobranchia found on GB See also Killeen & Turner (2009) for identification of many North Atlantic Yoldiella Verrill & Bush, 1897 and Ledella Verrill & Bush, 1897 species not found in the present material. 1. Hinge plate narrowing but not interrupted under the umbo, with teeth forming a continuous series........................................................................................................................................................... 2 – Hinge plate interrupted beneath the umbo by a ligamental pit......................................................... 3 2. Outline regularly oval, longer than high................... Tindaria sericea (Jeffreys, 1876) (Fig. 31G‒I) – Outline rounded anteriorly and tapering posteriorly........................................................................................................................................ Pseudoneilonella latior (Jeffreys, 1876) [not found on GB] 3. Outline triangular with rounded ends; inside of shell nacreous....................................................... 4 – Outline rounded, oval, or with anterior end rounded and posterior end tapering; inside of shell not nacreous........................................................................................................................................... 6 4. Ventral margin smooth................................. Ennucula corbuloide s (Seguenza, 1877) (Fig. 31E‒F) ‒ Ventral margin crenulated by the termination of internal rods......................................................... 5 5. Shell plump, externally with fine radial microsculpture..................................................................................................................................................... Nucula atacellana Schenck, 1939 (Fig. 31C‒D) – Shell rather compressed, sculpture mostly commarginal................................................................... ..................................................................................... Nucula tumidula Malm, 1861 (Fig. 31A‒B) 6. Posterior end acute or more or less angular...................................................................................... 7 – Posterior end rounded, even if somewhat tapering........................................................................... 8 7. Posterior end acute, umbo anterior to vertical midline.................................................................................................................................................. Ledella messanensis (Jeffreys, 1870) (Fig. 32A‒B) – Posterior end bluntly angular, umbo posterior to vertical midline........................................................................................................................................... Ledella cf. orixa (Dall, 1927) (Fig. 32C‒D) 8. Shell less than 2 mm, white, rounded in outline........................................................................................................................................................... Pristigloma minima (Seguenza, 1877) (Fig. 31J‒K) – Shell larger, definitely longer than high............................................................................................ 9 9. Shell inflated, posteriorly tapering.................... Yoldiella semistriata (Jeffreys, 1879) (Fig. 32G‒H) – Shell very compressed, posterior part broadly rounded............................................................................................................................... Yoldiella valorousae Killeen & J. A. Turner, 2009 (Fig. 32I‒J) Family Nuculanidae H. & A. Adams, 1858
- Published as part of Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 75-76, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418