Biology:Notochthamalus
| Notochthamalus | |
|---|---|
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| Top view by Melissa Merrill | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Thecostraca |
| Subclass: | Cirripedia |
| Order: | Balanomorpha |
| Family: | Chthamalidae |
| Genus: | Notochthamalus Foster & Newman, 1987[2]:326 |
| Species: | N. scabrosus
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| Binomial name | |
| Notochthamalus scabrosus | |
| Synonyms | |
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Chthamalus scabrosus Darwin, 1854 | |
Notochthamalus scabrosus, the only species in the genus Notochthamalus,[2][3] is a species of barnacle found along the south-western and south-eastern coasts of South America, from Peru to the Falkland Islands.[4] The species is found almost exclusively higher in the intertidal zone than the mussel Perumytilus, often codistributed with the confamilial barnacle Jehlius cirratus and Balanus flosculus.[1]:468[5]
Diagnosis and discussion
Notochthamalus is composed of 6 compartmental plates, composed of a carina, rostrum, and paired carinolatera and rostrolatera. Sutures between plates made up of poorly developed oblique folded laminae with membraneous basis. Plates are colored dull purplish brown, weathering to gray. Free-growing shellis are conic, crowded colonies become cylindrical, with plate sutures obscured. Opercular plates are narrow and deeply interlocked.[1]:468 The interior of the tergum shows a tergal depressor muscle pit with overhang and no crests, or only relics thereof. Neither shell nor opercular plates show secondary fusion with age.[2][6]:79 The best character for field identification are the undulations along the tergal-scutal margins. Given the overall appearance of the operculum of Notochthamalus, it is sometimes called the "vampire barnacle".
Nomenclature and synonymies
Notochthamalus
- Notochthamalus Foster & Newman, 1987;[2]:326 (original description).
- Type species: Chthamalus scabrosus Darwin, 1854: 468, original designation by Foster & Newman, 1987, and by monotypy.
Notochthamalus scabrosus
- Chthamalus scabrosus Darwin, 1854;[1]468 (original description): Newman & Ross, 1976,[7]42 (see for pre-1976 bibliography).
- Notochthamalus scabrosus (Darwin). Foster & Newman, 1987,[2]:326 (generic re-assignment): Poltarukha,[8]:993[6]:79 (discussion, supplementary description).
- Type locality: Not given in Darwin, 1854, or Pilsbry, 1916.
- Type specimens: Not given in Darwin, 1854. Pilsbry's 1916 reference specimens from Valparaiso, Chile are USNM No. 48089.[9]323
Geographic range and habitat
Notochthamalus scabrosus prefers exposed upper littoral habitats, and can be found on the South American coastline from Peru through Chile , Chiloe Archipelago, and Tierra del Fuego. It co-occurs there with Jehlius cirratus. In the Atlantic Ocean, it is very common on the Falkland Islands.[1]468[6]:79[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Darwin, Charles (1854). A monograph on the sub-class Cirripedia with figures of all species. The Balanidae, the Verrucidae, etc.. London: Ray Society. pp. 1–684. https://archive.org/details/monographonsubcl02darw.
- ↑ 2.0 2.1 2.2 2.3 2.4 Brian A. Foster & William A. Newman (1987). "Chthamalid Barnacles of Easter Island. Peripheral Pacific Isolation of Notochthamalinae new-subfamily and Hembeli group of Euraphiinae (Cirripedia: Chthamaloidea).". Bulletin of Marine Science 41 (2): 322–336. http://www.ingentaconnect.com/content/umrsmas/bullmar/1987/00000041/00000002/art00020.
- ↑ William A. Newman & Brian A. Foster (1987). "Southern Hemisphere endemism among the barnacles: explained in part by extinction of northern members of amphitropical taxa?". Bulletin of Marine Science 41 (2): 361–377. http://www.ingentaconnect.com/content/umrsmas/bullmar/1987/00000041/00000002/art00023.
- ↑ Jessica Curelovich, Gustavo A. Lovrich & Javier A. Calcagno (2009). "Nueva localidad para Notochthamalus scabrosus (Crustacea, Cirripedia): Bahía Lapataia, Canal Beagle, Tierra del Fuego, Argentina" (in Spanish). Anales del Instituto de la Patagonia (Chile) 37 (2): 47–50. doi:10.4067/s0718-686x2009000200005. http://www.scielo.cl/pdf/ainpat/v37n2/art05.pdf.
- ↑ 5.0 5.1 "World Register of Marine Species, species Jehlius cirratus". http://marinespecies.org/aphia.php?p=taxdetails&id=1501521.
- ↑ 6.0 6.1 6.2 Poltarukha, O. P. (2006). Identification Atlas of Superfamily Chthamaloidea (Cirripedia Thoracica) barnacles in World Ocean. Moscow: KMK Scientific Press, Ltd.. pp. 1–198 [In Russian]. ISBN 978-5-87317-278-8.
- ↑ Newman, W. A.; A. Ross (1976). "Revision of the Balanomorph Barnacles including a catalog of the species". Memoirs of San Diego Society of Natural History 9: 1–108.
- ↑ Poltarukha, O. P. (1996). "Composition, phylogeny and position in system of subfamily Notochthamalinae (Crustacea, Chthamalidae)". Zoologicheskii Zhurnal 75 (7): 985–994. ISSN 0044-5134.
- ↑ Pilsbry, H. A. (1916). "The sessile Barnacles (Cirripedia) contained in the collections of the US National Museum; including a monograph of the American species". Smithsonian Institution United States National Museum Bulletin 93 (93): 1–366. doi:10.5479/si.03629236.93.1. http://archive.org/details/sessilebarnacles00pils.
External links
Wikidata ☰ Q7063139 entry
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