A New Polymorphic Species of Leptochelia (Crustacea: Tanaidacea) from Guinea Bissau, West Africa, with Comments on Genetic Variation within Leptochelia

  title={A New Polymorphic Species of Leptochelia (Crustacea: Tanaidacea) from Guinea Bissau, West Africa, with Comments on Genetic Variation within Leptochelia},
  author={Kim Larsen and Elsa Froufe},
ABSTRACT Anew species of Leptochelia, namely L. africana, is described from Guinea Bissau, West Africa, following the collection of specimens during the Laboratory of Marine Community Ecology and Evolution's sampling expedition to Macaronesia and Portugal's former colonies. Genetic and morphological analysis separates this species from the other east-Atlantic species of Leptochelia, a genus known for its combination of many cryptic species, considerable intra-specific variation, and multiple… Expand
Tanaidaceans (Crustacea: Peracarida: Apseudidae) from southern Portugal with description of the new species Apseudopsis formosus, report of five first records and a biogeographic overview: unexpected expansion or understudied hotspot?
This study describes Apseudopsis formosus sp. nov., a new apseudomorph tanaidacean species from the Ria Formosa lagoon (southern Portugal). Species description was based on 223 individuals (22Expand
Redescription of Hargeria rapax (Harger, 1879) and description of H. chetumalensis a new species from the Mexican Caribbean (Crustacea, Peracarida, Tanaidacea, Leptocheliidae) based upon morphological and molecular evidence
Until now, Hargeria was considered a monospecific leptocheliid genus, with the species Hargeria rapax considered a taxon with a wide distribution, from the Northwestern Atlantic to the MexicanExpand
Two new species of Leptochelia Dana, 1849 (Peracarida, Tanaidacea) from Cuba
Two new species of Leptochelia Dana are described from the Cuban archipelago, L. ortizi n. Expand
New data on the Tanaidacea (Crustacea: Peracarida) from the Canary Islands, with a description of a new species of Apseudopsis.
Benthic samples from two harbours at El Hierro and Tenerife (Canary Islands) yielded three species of Tanaidacea, including a new species of Apseudomorpha, which can be differentiated from other species of the genus by the male having a cheliped merus with a distinctive, cylindrical dorso-proximal spur. Expand
A new genus of Colletteidae (Crustacea: Peracarida: Tanaidacea) from the Pacific with comments on dimorphic males with species specific characters
A new genus and species of Tanaidacea are described from the manganese nodule province between the Clarion and the Clipperton Fracture Zone of the equatorial North Pacific Ocean collected during theExpand
Genetic divergence of tanaidaceans (Crustacea: Peracarida) with low dispersal ability
The results showed that traditional species identification underestimates tanaidacean diversity and that what have been previously perceived as reliable diagnostic morphological characters, are, however, variable and unreliable. Expand
Nototanaids (Crustacea: Tanaidacea) from Japan, with the Description of a New Species of Nototanoides
A new nototanaid is described based on specimens from the Yaku-Shin-Sone Bank, Nansei Archipelago, southern Japan, which differs from its only congener in having a short distal article in the antennule and in the position of a row of aesthetascs on that article. Expand
New species of the genus Zeuxo (Peracarida, Tanaidacea)
The species Z. paranormani Sieg, 1980 is demoted to a junior synonym of Z. normani, while the ‘Zeuxo normani’ from Australia is raised to full species rank under the name Z. edgari. Expand
A dataset of Tanaidacea from the Iberian Peninsula and surrounding areas
Author(s): Garcia Herrero, Alvaro; Martinez, Alejandro; Garcia-Gomez, Guillermo; Sanchez, Nuria; Bird, Graham; Fontaneto, Diego; Pardos, Fernando | Abstract: We describe a dataset on the crustaceanExpand


In the footsteps of Henrik Nikolaj Krøyer: the rediscovery and redescription of Leptochelia savignyi (Krøyer, 1842) sensu stricto (Crustacea: Tanaidacea: Leptocheliidae)
To resolve confusion over attribution of northeast Atlantic populations to one or other of the earlier-described species, specimens from Madeira, the type locality of L. savignyi, have been analyzed in comparison with material from the western English Channel and northwest Spain. Expand
New Leptocheliidae (Crustacea: Tanaidacea: Tanaidomorpha) from Australian seagrass and macro-algal habitats, and a redescription of the poorly-known Leptochelia ignota from Sydney Harbour
A new genus (Poorea n. gen.) and five new species collected from shallow macrophyte habitats are diagnosed and a rede-scription provided for the enigmatic tanaidacean Leptochelia ignota on the basis of specimens collected near the Sydney type locality. Expand
Tanaidacean Phylogeny - the Second Step: the Basal Paratanaoidean Families (Crustacea: Malacostraca)
This study should be regarded as a platform for more comprehensive analyses and systematic conclusions for the Tanaidacea and suggests a re- vised method - the 'Restricted taxa analysis' - for resolving diffi cult datasets of the 'many-taxa-few-characters' type. Expand
Tanaidaceans (Crustacea: Malacostraca: Peracarida) from soft-sediment habitats off Israel, Eastern Mediterranean
Of the eight species of Apseudomorpha, one, a species of Leviapseudes, is new to the Mediterranean, and probably to science, but the damaged immature material precludes description and diagnosis, and the continued presence in this region of the Erythrean species Cristapseudes omercooperi was confirmed. Expand
An attempt is made to investigate the provenance of the Azorean tanaidacean fauna, although the general lack of data from the North-east Atlantic precludes any reasonable interpretation other than some possible links with the Mediterranean. Expand
Untying the Gordian Knot: on Tanais novaezealandiae Thomson (Crustacea, Tanaidacea, Tanaidae) from New Zealand, with descriptions of two new Zeuxoides species
Two new species which show a close resemblance to some newly-described Australian species and Zeuxoides helleri support the view that the Australasian/New Zealand region is a hot-spot for species richness within the Tribe Anatanaini and the confused taxonomy of the Subfamily Tanainae is remarked on. Expand
Taxonomische und phylogenetische Untersuchungen über die Tanaidaceen (Crustacea)
The taxonomy of the genera mentioned in the title is discussed as well as the taxonomic position of Typhlotanais longidactylus Shiino, and it is proposed that Leptochelia, Heterotanais, Hargeria, PseudoleptOChelia and PseudonototanaIS should be grouped together in the new family Leptokheliidae. Expand
Morphological and molecular investigation of polymorphism and cryptic species in tanaid crustaceans: implications for tanaid systematics and biodiversity estimates
The identification of three undescribed cryptic species from a single microhabitat in a well studied, shallow water and easily accessible locality, demonstrate that the biodiversity of tanaid crustacean is significantly underestimated. Expand
Phylogenetic Relationships of Tanaidacea (Eumalacostraca: Peracarida) Inferred from Three Molecular Loci
Results suggested that the monotypic Hargeria should be considered a junior synonym of Leptochelia, corroborating morphological evidence, in the first attempt at using molecular data to determine phylogenetic relationships of tanaidaceans. Expand
Littoral Tanaidacea (Crustacea: Peracarida) from Macaronesia: allopatry and provenance in recent habitats
  • R. Bamber
  • Biology
  • Journal of the Marine Biological Association of the United Kingdom
  • 2012
The Macaronesian Islands in the mid-Atlantic pose a number of questions relating to their colonization by littoral tanaidaceans, as these taxa have no obligate dispersive phase. Recent surveys of theExpand