Brachiomya Jespersen 2004
Authors/Creators
- 1. Santa Barbara Museum of Natural History, 2259 Puesta del Sol Road, Santa Barbara, CA 93105, USA
- 2. Department of Biological Sciences, University of Cape Town, Private Bag X 3, Rondebosch 7701, South Africa
- 3. Sea Change Trust, Cape Town, Western Cape, South Africa & Department of Botany and Zoology, Stellenbosch University, Private Bag X 1, Matieland, 7602, South Africa
- 4. Department of Ecology and Evolutionary Biology, University of Colorado Boulder, 1900 Pleasant Street, Boulder, CO 80309, USA
Description
Brachiomya Jespersen et al., 2004
Brachiomya Jespersen, Lützen & C. Nielsen, 2004. Type species (original designation) Solecardia stigmatica (Pilsbry, 1921). Recent.
Description.
Shell small (less than 5 mm); transversely ovate; anterior end narrower than posterior end; inequilateral; hinge plate narrow; both valves with a small triangular pseudocardinal tooth beneath umbos; ligament internal, in oblique resilifer; mantle folds wrapped over most of the shell and anteriorly extended into a large inhalant-pedal siphon, posteriorly into a smaller exhalent siphon; mantle with many slender, terminally spatulate tentacles; foot elongate; gills with inner demibranch only.
Discussion.
Jespersen et al. (2004) distinguished Brachiomya from other galeommatoidean genera by the presence of extensive mid-mantle folds with many spatulate tentacles. Huber (2015) accepted Brachiomya as a monotypic genus. As Jespersen and Huber both postulated, we have found Brachiomya to group with members of the Lasaeidae. All species are likely to be obligate commensals with echinoid echinoderms.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Jespersen
- Kingdom
- Animalia
- Phylum
- Mollusca
- Order
- Galeommatida
- Family
- Montacutidae
- Genus
- Brachiomya
- Taxon rank
- genus
- Taxonomic concept label
- Brachiomya Jespersen, 2004 sec. Valentich-Scott, Griffiths, Landschoff, Li & Li, 2024
References
- Jespersen A, Lutzen J, Nielsen C (2004) On three species and two new genera (Montacutella and Brachiomya) of galeommatoid bivalves from the irregular sea urchin Brissus latecarinatus with emphasis on their reproduction. Zoologischer Anzeiger 243 (1 - 2): 3 - 19. https: // doi. org / 10.1016 / j. jcz. 2004.04. 001
- Pilsbry HA (1921) Marine Mollusks of Hawaii, VIII - XIII. Proceedings. Academy of Natural Sciences of Philadelphia 72: 296 - 328.
- Jespersen Å, Lützen J, Nielsen C (2004) On three species and two new genera (Montacutella and Brachiomya) of galeommatoid bivalves from the irregular sea urchin Brissus latecarinatus with emphasis on their reproduction. Zoologischer Anzeiger 243 (1–2): 3–19. https://doi.org/10.1016/j.jcz.2004.04.001
- Huber M (2015) Compendium of bivalves 2. Hackenheim, Germany (ConchBooks), 907 pp.