A new species ofThaumastoderma(Gastrotricha: Macrodasyida) from the Antarctic deep sea with a phylogenetic analysis of the whole genus

2009 ◽  
Vol 90 (3) ◽  
pp. 575-584 ◽  
Author(s):  
Alexander Kieneke
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Deep Sea ◽  
Cladistic Analysis ◽  
Drake Passage ◽  
First Record ◽  
South Shetland Islands ◽  
The North ◽  
The Antarctic ◽  
A New Species

A new species of the marine gastrotrich taxonThaumastodermais described. A single specimen of this species,Thaumastoderma antarcticasp. nov., was extracted from silty sediment sampled at one station of the Andeep-1 cruise, about 150 km to the north of the South Shetland Islands (Drake Passage, South Atlantic Ocean). This paper provides the first record of this genus from the deep sea and the second description of a macrodasyid gastrotrich living in an abyssal habitat. The new species is characterized by several apomorphic features, among them a caudal pair of strongly elongated dorsal cirrata tubes. A phylogenetic analysis of the genusThaumastodermareveals thatTh. antarcticais closely related toTh. coronariumandTh. appendiculatum. Furthermore, the analysis offers an evolutionary scenario and a hypothesis for the internal phylogeny of this taxon while supporting its monophyly. It is the first time a cladistic analysis has been conducted for a delimited group of gastrotrichs, i.e. for all known members of a genus.

A new species of Regabellator Siebenaller & Hessler, 1981 (Isopoda, Asellota, Nannoniscidae) from the Amundsen Sea shelf (Southern Ocean)

Crustaceana ◽  
2015 ◽  
Vol 88 (4) ◽  
pp. 405-421 ◽  
Author(s):  
S. S. M. Kaiser
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Deep Sea ◽  
First Record ◽  
Amundsen Sea ◽  
The North ◽  
Antarctic Continental Shelf ◽  
The Antarctic ◽  
North And South ◽  
A New Species

Based on benthic material collected during the BIOPEARL (Biodiversity, Phylogeny, Evolution and Adaptive Radiation of Life in Antarctica) II expedition on board RRS “James Clark Ross” a new nannoniscid species,Regabellator brixorumsp. n., is described from the Pine Island Bay continental shelf, western Amundsen Sea (Antarctica). The new species most closely resemblesRegabellator armatus(Hansen, 1916) but can be distinguished from this species by possessing ventral spines on pereonites 1-4, the shape of the cephalothorax anterior margin and the length of the pereonite 7 ventral spine. The genusRegabellatorhas been previously recorded from the North and South-eastern Atlantic and here exclusively from the deep sea (1946 m and below). The new species represents the first record of the genusRegabellatorfrom the Antarctic continental shelf and thus greatly extends hitherto known latitudinal and bathymetric ranges for this genus.

scholarly journals A new deep-sea isopod from the Weddell Sea, Antarctica: Coperonus pinguis n. sp. (Crustacea, Isopoda, Munnopsidae)

1992 ◽  
Vol 62 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Angelika Brandt
Keyword(s):  
New Species ◽  
Deep Sea ◽  
First Record ◽  
Weddell Sea ◽  
The Antarctic ◽  
A New Species

A new species of Coperonus, C. pinguis, is described from the Antarctic deep sea. It is the first record of an Antarctic deep-sea species in this genus and the southernmost record of Coperonus.

scholarly journals Ashinkailepas kermadecensis, a new species of deep-sea scalpelliform barnacle (Thoracica: Eolepadidae) from the Kermadec Islands, southwest Pacific

Zootaxa ◽  
2009 ◽  
Vol 2021 (1) ◽  
pp. 57-65 ◽  
Author(s):  
JOHN S. BUCKERIDGE
Keyword(s):  
New Species ◽  
New Zealand ◽  
Deep Sea ◽  
Cold Water ◽  
The Other ◽  
Cold Seeps ◽  
Central Japan ◽  
Southwest Pacific ◽  
The North ◽  
A New Species

A new deep-sea stalked barnacle, Ashinkailepas kermadecensis sp. nov. has been recovered from a cold-water seep at depths of 1165 metres in the vicinity of the Kermadec Ridge to the northeast of the North Island, New Zealand. There are now two species of Ashinkailepas—the other, Ashinkailepas seepiophila Yamaguchi, Newman & Hashimoto, 2004, occurs in deep, cold seeps off central Japan. As there are two species within Ashinkailepas, formal diagnoses are provided for both taxa.

Rhodocollybia utrorensis (Agaricales, Basidiomycota): a new species and a first record of the genus Rhodocollybia from Pakistan

Phytotaxa ◽  
2018 ◽  
Vol 369 (4) ◽  
pp. 269
Author(s):  
AMMARA SATTAR ◽  
MUNAZZA KIRAN ◽  
ABDUL NASIR KHALID
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
First Record ◽  
Anatomical Features ◽  
First Report ◽  
Its Nrdna ◽  
A New Species

Rhodocollybia utrorensis sp. nov. is described from the Utror valley, Pakistan. It is characterized by a dull brown pileus with a low umbo and inrolled margin, adnate lamellae with wavy margin, presence of pleurocystidia and inamyloid basidiospores. Both morpho-anatomical features and phylogenetic analysis based on ITS nrDNA sequence indicate Rhodocollybia utrorensis is a new species. This is the first report of the genus Rhodocollybia from Pakistan.

A new species and record of Serpulidae (Annelida: Polychaeta) from Cross Seamount in the Hawaiian Chain

Zootaxa ◽  
2012 ◽  
Vol 3192 (1) ◽  
pp. 49
Author(s):  
JULIE H. BAILEY-BROCK ◽  
WAGNER F. MAGALHÃES
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Record ◽  
Type Species ◽  
Hawaiian Islands ◽  
Type Specimen ◽  
First Record ◽  
Type Locality ◽  
A New Species

A new species of the serpulid genus Metavermilia Bush, 1905 and a new record of the genus Omphalopomopsis Saint-Joseph, 1894 are described from deep-sea lava rocks collected from 2,013 m at Cross Seamount, southwest of the Hawaiiarchipelago. Metavermilia zibrowii sp. nov., differs from its congeners mostly by the presence of a simple and concaveoperculum, extent of the thoracic membrane and tube morphology. Omphalopomopsis langerhansii (Marenzeller, 1885)is the type species of the genus and it is only known through its type specimen. This species is characterized by a simpleoperculum with a shallow convex calcareous endplate, cylindrical peduncle, presence of Apomatus chaetae and high num-ber of teeth in the thoracic uncini. This is the first record of this species outside the type locality and both genera are newly recorded for the Hawaiian Islands.

Phylogenetic analysis of the genus Corotoca, with description of a new genus and species from Brazil (Coleoptera, Staphylinidae, Aleocharinae)

2020 ◽  
pp. 1-45
Author(s):  
Bruno Zilberman
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Identification ◽  
New Genus ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Exhaustive Search ◽  
New Genus And Species ◽  
A New Species

Corotoca is a strictly Neotropical genus of termitophilous beetles associated with termites of genus Constrictotermes. A cladistic analysis based on 13 terminal taxa and 60 characters (57 morphological and three behavioral) was conducted. The exhaustive search with equally weighted characters resulted in two most parsimonious trees with 95 steps. Spirachtha is proposed to be the sister group of the monophyletic “subgroup Corotocae” (Corotoca + Cavifonexus gen. nov.), based on eleven synapomorhphies (ten exclusive and one homoplastic). The monophyly of Corotoca is supported here, including six species associated with Constrictotermes cyphergaster: (Corotoca hitchensi sp. nov + (C. melantho + C. pseudomelantho sp. nov.) + ((C. fontesi + (C. phylo + C. araujoi)). A new genus, Cavifronexus gen. nov., is proposed to two species associated with Constrictotermes cavifrons (Holmgren, 1910): Cavifronexus guyanae comb. nov., from Guyana and Brazil, previously described as Corotoca; and a new species, Cavifronexus papaveroi sp. nov., from Brazil. This work also includes descriptions, redescriptions, and illustrations for all species and genera. Keys for genera and species identification in “subgroup Corotocae” are also provided.

A new species of the genus Lucasioides Kwon, 1993 (Isopoda, Oniscidea, Agnaridae) from Siberia, Russia

Zootaxa ◽  
2021 ◽  
Vol 4903 (1) ◽  
pp. 140-150
Author(s):  
KONSTANTIN B. GONGALSKY ◽  
PAVEL S. NEFEDIEV ◽  
ILYA S. TURBANOV
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
First Record ◽  
Morphological Characters ◽  
Molecular Data ◽  
Altai Mountains ◽  
The Family ◽  
Southwestern Siberia ◽  
A New Species ◽  
Preliminary Phylogenetic Analysis

A new species of the family Agnaridae, Lucasioides altaicus sp. nov., is described from the Altai Mountains, southwestern Siberia, based both on morphological characters and molecular data. This species is the first record of Lucasioides from Russia, whose location is the northernmost habitat of terrestrial isopods in indigenous habitats presently known to Eurasia. The diagnostic characters of the new species and a preliminary phylogenetic analysis within Agnaridae are provided. 

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