Akera is a primitive genus. These sea hares do not fit completely in their external shell; it just covers their visceral hump which is positioned at the posterior end of their bodies. Their streamlined bodies are adapted for burrowing.
Speciesedit
Akera bayeri (Marcus & Marcus, 1967) - It can be found along the coast of Colombia and Brazil.
Akera soluta (Gmelin, 1791) - Also called the Solute akera, this species can be found in the Indo-West Pacific. Little is known about this species. Its shell can grow as large as 45 mm in length.
† Akera striatella Lamarck, 1804 - fossil from the Eocene and Oligocene.
Akera tasmanica Beddome, 1883:[4] synonym of Diaphana tasmanica (Beddome, 1883)
Referencesedit
^Müller O. F. (1776). Zoologiæ Danicæ prodromus, seu animalium Daniæ et Norvegiæ indigenarum characteres, nomina, et synonyma imprimis popularium. pp. I-XXXII [= 1-32], 1-274. Havniæ. (Hallager). page 242.
^Sepkoski's Online Genus Database. Downloaded 14 October 2008.
^Schiøtte T. (1998). "A taxonomic revision of the genus Diaphana Brown, 1827, including a discussion of the phylogeny and zoogeography of the genus (Mollusca: Opisthobranchia)". Steenstrupia. 24: 77–140.
External linksedit
Akera bullata
February 26, 2024
akera, marine, genus, hare, family, akeridae, known, from, late, callovian, jurassic, recent, periods, temporal, range, callovian, recent, preꞒ, nshells, bullatascientific, classificationdomain, eukaryotakingdom, animaliaphylum, molluscaclass, gastropodasubcla. Akera is a marine genus of sea hare in the family Akeridae known from the late Callovian Jurassic to the recent periods 2 3 AkeraTemporal range Callovian recent PreꞒ Ꞓ O S D C P T J K Pg Nshells of Akera bullataScientific classificationDomain EukaryotaKingdom AnimaliaPhylum MolluscaClass GastropodaSubclass HeterobranchiaClade EuopisthobranchiaClade AnaspideaSuperfamily AkeroideaFamily AkeridaeGenus AkeraO F Muller 1776 1 SpeciesSee textSynonyms 2 Acera Jeffreys 1867 unjustified emendation of Akera Muller 1776 Aceras Locard 1886 unjustified emendation of Akera Eucampe Leach 1847 Vitrella Swainson 1840 Contents 1 Description 2 Species 3 References 4 External linksDescription editAkera is a primitive genus These sea hares do not fit completely in their external shell it just covers their visceral hump which is positioned at the posterior end of their bodies Their streamlined bodies are adapted for burrowing Species editAkera bayeri Marcus amp Marcus 1967 It can be found along the coast of Colombia and Brazil Akera bullata O F Muller 1776 type species Akera julieae Valdes amp Barwick 2005 Akera silbo Ortea amp Moro 2009 Akera soluta Gmelin 1791 Also called the Solute akera this species can be found in the Indo West Pacific Little is known about this species Its shell can grow as large as 45 mm in length Akera striatella Lamarck 1804 fossil from the Eocene and Oligocene Akera tasmanica Beddome 1883 4 synonym of Diaphana tasmanica Beddome 1883 References edit Muller O F 1776 Zoologiae Danicae prodromus seu animalium Daniae et Norvegiae indigenarum characteres nomina et synonyma imprimis popularium pp I XXXII 1 32 1 274 Havniae Hallager page 242 a b Gofas S 2012 Akera O F Muller 1776 Accessed through World Register of Marine Species at http www marinespecies org aphia php p taxdetails amp id 137641 on 2012 03 31 Sepkoski s Online Genus Database Downloaded 14 October 2008 Schiotte T 1998 A taxonomic revision of the genus Diaphana Brown 1827 including a discussion of the phylogeny and zoogeography of the genus Mollusca Opisthobranchia Steenstrupia 24 77 140 External links editAkeroidea at Sea Slug Forum showing Akera soluta Akera soluta at Sea Slug Forum Akera bullata Retrieved from https en wikipedia org w index php title Akera amp oldid 1009702884, wikipedia, wiki, book, books, library,
