Anatoma richardi NOR
- 1. Departamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain.
- 2. Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Universidad Autónoma de Madrid, c / Darwin 2, 28049 Madrid, Spain.
- 3. Alcorisa 83 12 C, 28043 Madrid, Spain.
- 4. Museo Nacional de Ciencias Naturales (CSIC), c / José Gutiérrez Abascal 2, 28006 Madrid, Spain.
- 5. Centro Oceanográfico de Santander, Instituto Español de Oceanografía, Apdo. 240 Promontorio San Martín, s / n, 39080 Santander, Spain.
Description
Anatoma richardi (Dautzenberg & H. Fischer, 1896)
Fig. 7A–I
Scissurella richardi Dautzenberg & H. Fischer, 1896: 487; pl. 21 figs 2–3.
Anatoma richardi – Geiger 2012: 1108. — Ortega & Gofas 2019: 518–519.
Material examinedGALICIA BANK • 1 spm, 32 sh; 42°52′ N, 11°51′ W; 985–1000 m; 20 Oct. 1987; SEAMOUNT 1 DW116; MNHN • 3 spm; 42°49.13′ N, 11°46.59′ W; 903 m; 4 Aug. 2011; BANGAL 0711 GOC6; MNCN.
RemarksOrtega & Gofas (2019) used this name for the Anatoma species which is common at depths less than 1000 meters in the Canary Islands, and concluded that the synonymy with Scissurella tenuis Jeffreys, 1877 proposed by Geiger (2012) was not warranted. The latter, with an abyssal type locality in the northwest Atlantic, differs by the configuration of the early whorls and the habitat. Anatoma richardi, originally described from off the Azores Islands in 1360 m, is also found on GB. In A. richardi, the suture of the body whorl may be more or less detached from the selenizone of the previous whorl (the “sutsel” in Geiger 2012), whereas in A. tenuis the suture is reported as always adjusted to it. Anatoma tenuisculpta (Seguenza, 1880), described from the Pleistocene of southern Italy and recorded as living in the Alboran Sea and Ibero-Moroccan Gulf and in several localities off NW Europe (Høisaeter & Geiger 2011; Geiger 2012), also belongs to this species group but is distinguished by having a higher profile with the last whorl even more clearly separated from the selenizone. We have never seen any locality with A. richardi and A. tenuisculpta sympatric and separable, and the possibility that they represent morphological variation in a single species should be investigated. Some specimens from GB (Fig. 7G–I), here reported as A. cf. richardi, are rather stunted with a rather wide sutsel, but could not be convincingly delimited from typical A. richardi.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- MNCN , MNHN
- Event date
- 1987-10-20 , 2011-08-04
- Family
- Anatomidae
- Genus
- Anatoma
- Kingdom
- Animalia
- Material sample ID
- BANGAL 0711 GOC6 , SEAMOUNT 1 DW116
- Order
- Lepetellida
- Phylum
- Mollusca
- Scientific name authorship
- NOR
- Species
- richardi
- Taxon rank
- species
- Verbatim event date
- 1987-10-20 , 2011-08-04
- Taxonomic concept label
- Anatoma richardi (Dautzenberg, 1896) sec. Gofas, Luque, Oliver, Templado & Serrano, 2021
References
- Geiger D. L. 2012. Monograph of the Little Slit Shells. Santa Barbara Museum of Natural History, Santa Barbara.
- Ortega J. & Gofas S. 2019. The unknown bathyal of the Canaries: new species and new records of deepsea Mollusca. Zoosystema 41 (26): 513 - 551. https: // doi. org / 10.5252 / zoosystema 2019 v 41 a 26
- Hoisaeter T. & Geiger D. L. 2011. Species of Anatoma (Gastropoda: Anatomidae) in Norwegian and adjacent waters, with the description of two new species. The Nautilus 125 (3): 89 - 112.