Protocuspidaria verityi Allen & Morgan, 1981

Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), European Journal of Taxonomy 785 (1), pp. 1-114 : 94-95

publication ID	https://doi.org/10.5852/ejt.2021.785.1605
publication LSID	lsid:zoobank.org:pub:8B61E9CD-DDCA-43FC-AB0A-B227C1A579E8
DOI	https://doi.org/10.5281/zenodo.5837840
persistent identifier	https://treatment.plazi.org/id/D63CF03C-C32B-FFBC-8C37-FE400B7DFA4A
treatment provided by	Felipe (2021-12-22 14:09:58, last updated 2024-12-04 16:44:58)
scientific name	Protocuspidaria verityi Allen & Morgan, 1981
status

Treatment

Protocuspidaria verityi Allen & Morgan, 1981 View in CoL

Fig. 43D–G View Fig

Material examined

GALICIA BANK • 2 spm, 2 sh, 6 v; 43°00.12′ N, 11°57.67′ W; 1706 m; 29 Jul. 2011; BANGAL 0711 V2; MNCN GoogleMaps • 3 v; 42°37.77′ N, 11°49.46′ W; 818 m; 30 Jul. 2011; BANGAL 0711 V3; MNCN GoogleMaps • 1 v; 42°59.61′ N, 11°58.41′ W; 1671 m; 7 Aug. 2011; BANGAL 0711 V9; MNCN GoogleMaps .

Remarks

This species was misidentified as Protocuspidaria colpodes (Dautzenberg & H. Fischer, 1897) in Salas (1996), in the preliminary INDEMARES BANGAL report ( Gofas et al. 2014b) and in Gofas et al. (2017), on the grounds that could be an older name, but Krylova (1995) convincingly recognized these as separate species and the GB specimens would then go to P. verityi .

Bathymetric distribution of the species

There is a clearcut separation between mollusc communities on the shallower summit platform of GB and the deeper samples collected below the Mediterranean outflow (i.e., below 1200 m). This is highly supported when involving the beam-trawl catches only ( Fig. 45B View Fig ) by the Bray-Curtis similarity index and a R ANOSIM value of 0.7 (both on quantitative and on presence/absence data). The grouping of the deep samples is also retrieved when taking into account all samples ( Fig. 45A View Fig ), even though the sampled surfaces and the meshed are unequal between dredge, beam trawl and otter trawl. Table 3 shows the contribution of the species to the similarity between samples, calculated on the quantitative data for beam trawls only.

Trophic groups

Filter feeders, mostly the bivalves, account for more than half of the individuals collected (Fig. 46). Among these, Limopsis Sasso, 1827 represent roughly half of the specimens of the “filter feeders” group (but different species on the plateau and in the deeper samples), while the presence of the many ectoparasitic species (mostly, in the family Eulimidae ) is testimonial from a quantitative point of view.

References

Allen J. A. & Morgan R. E. 1981. The functional morphology of Atlantic deep water species of the families Cuspidariidae and Poromyidae (Bivalvia): an analysis of the evolution of the septibranch condition. Philosophical Transactions of the Royal Society of London 294: 413 - 546. https: // doi. org / 10.1098 / rstb. 1981.0117

Gofas S., Salas C. & Luque A. A. 2014 b. Anexo 6 - Informe sobre los Moluscos del banco de Galicia. In: Informe final del proyecto LIFE + INDEMARES (LIFE 07 / NAT / E / 000732) Caracterizacion ecologica del banco de Galicia : 181 - 195. Instituto Espanol de Oceanografia, Santander and Fundacion Biodiversidad, Madrid.

Gofas S., Luque A. A., Templado J. & Salas C. 2017. A national checklist of marine Mollusca in Spanish waters. Scientia Marina 81 (2): 241 - 254, and supplementary material. https: // doi. org / 10.3989 / scimar. 04543.21 A

Krylova E. M. 1995. Dvustvorchatye molliuski semeistva Protocuspidariidae (Septibranchia, Cuspidarioidea): Sostav i osobennosti resprostraneniia. [Clams of the family Protocuspidariidae (Septibranchia, Cuspidarioidea): taxonomy and distribution]. Zoologicheskii Zhurnal 74: 20 - 38. [In Russian.]

Salas C. 1996. Marine Bivalves from off the Southern Iberian Peninsula collected by the Balgim and Fauna I expeditions. Haliotis 25: 33 - 100.

Figures

Fig. 43. Halonymphidae, Protocuspidariidae. A–C. Halonympha depressa (Jeffreys, 1882), BANGAL 0711, V2, 1706 m, 6.5 and 6.8 mm. D–F. Protocuspidaria verityi Allen & Morgan, 1981, BANGAL 0711, V2, 7.3 and 6.4 mm. G. Detail of the hinge of the right valve (same as E), the arrow points to the diagnostic anterior tooth. H–J. Protocuspidaria simplis Allen & Morgan, 1981, BANGAL 0711, V10, 1720 m, 9.0 mm, 10.1 mm. K. Detail of the hinge of the right valve (same as I), without tooth. Scale bars = 1 mm.

Fig. 45. Similarity between samples from the BANGAL 0711 campaign, based on presence/absence data of living specimens for molluscan species and on the Bray-Curtis similarity index (A, all samples; B, beam trawl samples only). Sample labels with depth in brackets. A similar topology was obtained using the abundance data transformed to fourth root.