Identification key to the Indo-Pacific species of the nudibranch family Phyllidiidae Rafinesque 1814, including the description of two new species (Gastropoda: Opisthobranchia)

2000 ◽  
Vol 128 (1-2) ◽  
pp. 189-211 ◽  
Author(s):  
Alexander Fahrner ◽  
Lothar A. Beck
Keyword(s):  
New Species ◽  
Identification Key ◽  
Two New Species ◽  
Pacific Species

Contribution to the knowledge of the oribatid mite genus Mesotritia (Acari, Oribatida, Oribotritiidae)

2021 ◽  
Author(s):  
Min Huang ◽  
Shuyuan Zhang ◽  
Dong Liu
Keyword(s):  
New Species ◽  
Oribatid Mite ◽  
Identification Key ◽  
Two New Species ◽  
Mite Genus

The genus Mesotritia (Oribatida, Oribotritiidae) was represented by eight species in China prior to this work. In this study, two new species, Mesotritia baxoiensis sp. nov. from Tibet and Mesotritia paranitida sp. nov. from Xinjiang, are described. An identification key to Chinese species of Mesotritia is provided to facilitate the further study on this group.

Two new species of Ctenitis (Dryopteridaceae) from South America and taxonomic notes on similar species

Phytotaxa ◽  
2015 ◽  
Vol 239 (1) ◽  
pp. 1 ◽  
Author(s):  
Raquel Stauffer Viveros ◽  
Alexandre Salino
Keyword(s):  
New Species ◽  
South America ◽  
Identification Key ◽  
Northeastern Brazil ◽  
Southeastern Brazil ◽  
Similar Species ◽  
New Synonyms ◽  
Two New Species

Two new species of Ctenitis (Dryopteridaceae) from South America are described and illustrated: Ctenitis christensenii is endemic to southeastern Brazil and C. glandulosa occurs from southeastern to northeastern Brazil and in Guyana. An identification key and notes about the distribution, habitat and taxonomy of the new species, C. falciculata and allies are provided. Moreover, seven lectotypifications and two new synonyms are proposed.

scholarly journals The short-legged Andean cosmetids revisited: the genus Libitia Simon, 1879 with description of two new species (Opiliones, Cosmetidae)

2020 ◽  
Author(s):  
Miguel Medrano ◽  
Ludson Neves de Ázara ◽  
Adriano Brilhante Kury
Keyword(s):  
New Species ◽  
Identification Key ◽  
External Morphology ◽  
Monotypic Genus ◽  
Distribution Maps ◽  
Colombian Andes ◽  
Natural Park ◽  
Two New Species ◽  
Current Species ◽  
Subjective Synonym

The old genus Libitia Simon, 1879 of small Andean harvestmen is revisited. The monotypic genus Libitiella Roewer, 1947 is herein considered a junior subjective synonym of Libitia. Accordingly, Libitiella bipunctata (Sørensen, 1932) is restored to the combination Libitia bipunctata. The species Libitia cordata and Libitia bipunctata comb. nov. are redescribed and the new species Libitia gandalf sp. nov. and Libitia iguaque sp. nov. are herein described from Cordillera Oriental of Colombian Andes (Chingaza Natural Park and Iguaque Natural Park, respectively). The species Gonyleptes multimaculatus Wood 1869, currently under the synonymy of L. cordata, is revalidated and transferred to Paecilaemella Roewer, 1925 forming Paecilaemella multimaculata comb. nov., and the species Cynorta itacoaiensis H. Soares, 1970 is herein considered a junior subjective synonym of it. In addition, the second current species of the genus, Libitia fusca (Simon, 1879), is transferred to Metalibitia. Libitia is diagnosed based in genital and external morphology, an identification key of the four species and distribution maps are offered.

Laonicespecies (Polychaeta, Spionidae) from the Whittard Canyon (NE Atlantic) with descriptions of two new species

2017 ◽  
Vol 97 (5) ◽  
pp. 961-973 ◽  
Author(s):  
Andrey Sikorski ◽  
Laetitia M. Gunton ◽  
Lyudmila Pavlova
Keyword(s):  
New Species ◽  
North Atlantic ◽  
Deep Water ◽  
The Body ◽  
Identification Key ◽  
The Other ◽  
Ne Atlantic ◽  
Two New Species ◽  
Generic Groups ◽  
Number Of Segments

Four species ofLaonice(Annelida: Spionidae) were collected from the lower bathyal depths (3300–3700 m) in the Whittard Canyon, NE Atlantic. Two are herewith described as new species:Laonice whittardensissp. nov. andLaonice nataesp. nov. The other two areLaonice blakeiSikorski & Jirkov, 1988 andLaonice magnacristataMaciolek, 2000.Laonice whittardensishas genital pouches appearing from chaetiger 3, prostomium free of peristomium and bidentate hooks.Laonice nataebelongs to the subgenusAppelloefianov. with prostomium distinct from the peristomium, more than two vertical rows of capillaries in several anterior chaetigers, genital pouches present on a limited number of segments or totally absent. However, the absence of pronounced anterior widening of the body together with anterior branchiae, which are remarkably (nearly twice) longer than the notopodial postchaetal lobes, the narrow lanceolate notopodial postchaetal lobes, the pronounced pointedness of all postchaetal lobes (both notopodial and neuropodial) in the anterior half of body at least, and absence of genital pouches and the size of the body all distinguishL. nataefrom other species belonging to this subgenus. An identification key to all nine known deep-water (>400 m depth)Laonicespecies in North Atlantic is given and four previously recognized sub-generic groups are formally named:Laonice, Sarsianasubgen. nov.,Appelloefiasubgen. nov.,Norgensiasubgen. nov.

Two new water mite species of the Sperchon tridentatus-group from Asia (Acari, Hydrachnidia, Sperchontidae)

Zootaxa ◽  
2021 ◽  
Vol 4970 (1) ◽  
pp. 143-150
Author(s):  
PETR V. TUZOVSKIJ
Keyword(s):  
New Species ◽  
Mite Species ◽  
Identification Key ◽  
Water Mite ◽  
Two New Species

In the present study a description of two new species of the Sperchon tridentatus-group from Asia is presented. An identification key is given for the known species of the group. 

Taxonomy of Petrosiidae Van Soest, 1980 (Haplosclerida, Porifera) from Brazil

Zootaxa ◽  
2021 ◽  
Vol 5004 (2) ◽  
pp. 251-287
Author(s):  
LÍVIA ROCHA ◽  
FERNANDO MORAES ◽  
SULA SALANI ◽  
EDUARDO HAJDU
Keyword(s):  
New Species ◽  
Rio De Janeiro ◽  
Rio Grande ◽  
Oceanic Islands ◽  
Identification Key ◽  
Brazilian Coast ◽  
Rio Grande Do Sul ◽  
Two New Species ◽  
Xestospongia Muta

Petrosiidae (Haplosclerida, Demospongiae) is characterized by the hard and friable consistency, and an isotropic reticulated skeleton of oxeas/ strongyles. The Brazilian coast and oceanic islands harbor three out of four known genera of Petrosiidae: Neopetrosia de Laubenfels, 1949; Petrosia (Petrosia) Vosmaer, 1885 and Xestospongia de Laubenfels, 1932. A taxonomic survey of samples from several expeditions housed at the Porifera Collection of Museu Nacional, Universidade Federal do Rio de Janeiro, with additional comparative materials obtained from the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, and Universidade Federal de Pernambuco enabled the description of two new species: P. (P.) revizee sp. nov. and X. dorigo sp. nov. We also recorded a range extention for Neopetrosia proxima and Xestospongia muta, and Xestospongia grayi was synonymized with X. muta. Other species reported from the country are diagnosed, and an identification key for Petrosiidae from Brazil is provided.

scholarly journals Deepwater Indo-Pacific species of the snake-eel genus Ophichthus (Anguilliformes: Ophichthidae), with the description of nine new species

Zootaxa ◽  
2010 ◽  
Vol 2505 (1) ◽  
pp. 1 ◽  
Author(s):  
JOHN E. McCOSKER
Keyword(s):  
New Species ◽  
Western Australia ◽  
New Caledonia ◽  
The Philippines ◽  
Junior Synonym ◽  
Identification Key ◽  
Gulf Of Aden ◽  
Eastern Australia ◽  
Pacific Species ◽  
Depth Distributions

The 19 Indo-Pacific species of the snake-eel genus Ophichthus (family Ophichthidae, subfamily Ophichthinae) that live at or below 200 m are reviewed. Included are: Ophichthus aphotistos, O. brachynotopterus, O. echeloides, O. exourus, O. genie, O. kunaloa, O. megalops, O. mystacinus, O. serpentinus, O. urolophus, and nine new species which are described: O. alleni from 115–200 m off eastern Australia; O. aniptocheilos from 391–421 m off Tonga; O. congroides from 300 m off the Tuamotu Islands; O. hirritus from 600 m off the Seychelle Islands; O. humanni from 254–300 m off Vanuatu; O. ishiyamorum from 258–400 m off the Gulf of Aden, Somalia; O. lentiginosus from 400 m off Vanuatu and New Caledonia; O. microstictus from 362–450 m off Tonga, Fiji, and possibly New Caledonia; and O. tomioi from 300– 423 m off the Philippines, Marquesas, Fiji, and the Seychelle Islands. The range and depth distributions of the following are expanded to include: O. brachynotopterus to New Caledonia and Vanuatu between 541–580 m; O. mystacinus to Tonga, Fiji, and the Philippines between 371–824 m; and O. urolophus to Western Australia and Indonesia between 40– 420 m. An identification key is provided. Characteristics and the behavior of species of the subgenus Coecilophis, to which all treated species except O. aphotistos belong, is discussed. Ophichthys madagascariensis Fourmanoir (1961) is proposed to be a junior synonym of Pisodonophis cancrivorus (Richardson 1848).

A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species

Zootaxa ◽  
2011 ◽  
Vol 2738 (1) ◽  
pp. 26 ◽  
Author(s):  
YUKIO IWATSUKI ◽  
KEI MIYAMOTO ◽  
KAZUHIRO NAKAYA ◽  
JIE ZHANG
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Northwestern Pacific ◽  
Nominal Species ◽  
Undescribed Species ◽  
White Pigment ◽  
Light Yellow ◽  
The Pacific ◽  
Two New Species ◽  
Pacific Species

The genus Platyrhina from the northwestern Pacific was reviewed, including a redescription and neotype proposal for Platyrhina sinensis (Bloch and Schneider 1801), and the description of two new species. Platyrhina limboonkengi Tang 1933 is relegated to the synonymy of P. sinensis, both species having two rows of hooked thorns on the mid-dorsum of the tail. Specimens previously widely identified as P. sinensis, but characterized by one row of such hooked thorns, represented an undescribed species, herein named Platyrhina tangi Iwatsuki, Zhang and Nakaya sp. nov. Platyrhina hyugaensis Iwatsuki, Miyamoto and Nakaya sp. nov., known from specimens limited primarily to the Hyuga Nada Sea, off Miyazaki, the Pacific coast of southern Japan, is similar to P. tangi in having one row of hooked thorns on the mid-dorsum of the trunk and tail, but differs in having larger hooked thorns, not encircled by light yellow or white pigment on the orbital, nape and scapular regions, and a pair of hooked thorns (absent in P. tangi) anteriorly on the scapular region. Nominal species are discussed and key to northwestern Pacific species of Platyrhina is provided.

Two new species of Lepidiella Enderlein, 1937 (Diptera: Psychodidae) from the Neotropical Region with taxonomic comments about the species of the genus

Zootaxa ◽  
2019 ◽  
Vol 4551 (4) ◽  
pp. 487
Author(s):  
MAÍRA XAVIER ARAÚJO ◽  
FREDDY BRAVO
Keyword(s):  
New Species ◽  
Neotropical Region ◽  
Identification Key ◽  
Two New Species

Lepidiella Enderlein, 1937 is a Neotropical genus with 15 species. This paper describes two new species from Brazil, Lepidiella maculosa sp. nov. and Lepidiella wagneri sp. nov., and provides an identification key for males of the genus. 

The genus Pseudopaguristes McLaughlin (Crustacea: Decapoda: Anomura: Diogenidae) from the southwestern Pacific, with the descriptions of two new species

Zootaxa ◽  
2008 ◽  
Vol 1840 (1) ◽  
pp. 54
Author(s):  
DWI LISTYO RAHAYU
Keyword(s):  
New Species ◽  
Distal Margin ◽  
Two New Species ◽  
Pacific Species

Two new species of Pseudopaguristes, P. mclaughlinae and P. pachydactylus are described from the southwestern Pacific. Both species have tuberculate spines that cover the mesial faces of the dactyls of the chelipeds, a character shared with P. hians (Henderson, 1888) and P. asper Rahayu, 2005. Pseudopaguristes mclaughlinae n. sp. differs from the two previously mentioned species in having the long and slender pereopods and a tergal thickening of the left second to fourth pleonal somites accompanied by row of long, moderately dense, plumose setae in females. Pseudopaguristes pachydactylus n. sp. is characterized by the short dactyls of the triangularly-shaped chelipeds and the absence of a row of hooked spines on the distal margin of inferior lamella of the male first pleopod. Two other species also found in the region are P. monoporus (Morgan, 1987) and P. laurentae (Morgan & Forest, 1991). A key to the known Indo-Pacific species of the genus Pseudopaguristes is provided.

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