scholarly journals Choniomyzon taiwanensis n. sp. (Crustacea: Copepoda: Nicothoidae) Parasitic on the External Egg Mass of the Longlegged Spiny Lobster Panulirus longipes longipes (Crustacea: Decapoda: Palinuridae) from Taiwanese Waters

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2475
Author(s):  
Yu-Rong Cheng ◽  
Kaori Wakabayashi ◽  
Yen-Ju Pan

Choniomyzon taiwanensis n. sp. is described based on specimens collected from examining external egg masses of spiny lobster Panulirus longipes longipes (Milne-Edwards, 1868), obtained from Hualien, Taiwan. The new species differs from its congeners in possessing the following characteristics: (1) small prosome (about 0.84 mm); (2) armature of antennule being 1, 1, 2, 2, 1, 1, 1, 2, 1, 1+1 (aesthetasc), 4, 6+1 (aesthetasc); (3) five-segmented antenna; (4) second segment of antenna bearing 1 inner seta; (5) two-segmented maxilla. Based on the evidence of distinctive morphological features and host preference, Choniomyzon taiwanensis n. sp. is a new species. Until now, four species of Choniomyzon have been known living on decapods, and the new species reported here is the first record of Choniomyzon species from spiny lobster in Taiwanese waters.

2021 ◽  
Vol 4 (6) ◽  
Author(s):  
ALEXANDER G. RADCHENKO

A new species of the fossil ant genus Drymomyrmex Wheeler, 1915, D. rasnitsyni sp. nov., is described from the late Eocene Rovno amber (Ukraine). This is the first find of a worker of this genus and the first record of Drymomyrmex in the Rovno amber. Based on the analysis of the morphological features of gynes and worker it is proposed to attribute Drymomyrmex to the tribe Plagiolepidini Forel, 1886.


Author(s):  
Juliana Alvim ◽  
Vinicius Padula ◽  
Alexandre Dias Pimenta

A new species of the genusOnchidorisis described from the south-western Atlantic, on the coast of Brazil, in the States of Rio de Janeiro and São Paulo. To date, the genusOnchidorisis known almost exclusively from the northern hemisphere, especially the Atlantic coast of Europe and the Mediterranean Sea. The single previous record from the southern hemisphere isOnchidoris maugeansis, described from Australia. This is the first record of the family Onchidorididae from the coast of Brazil.Onchidoris brasiliensissp. nov. is very similar toOnchidoris depressa, from England and the northern coast of Spain, but is distinguished by the presence of a triangular protuberance on the edge of the inner lateral radular tooth and a wide closed branchial circle with tubercles inside. Furthermore, the egg mass of O.brasiliensissp. nov. contains a single row of eggs, whereas that ofO. depressahas multiple rows.Onchidoris brasiliensissp. nov. has lecithotrophic development, the first record of this type of development in the genus. There is a relationship betweenO. brasiliensissp. nov. and the bryozoanParasmittina protecta.


Zootaxa ◽  
2009 ◽  
Vol 2137 (1) ◽  
pp. 51-56 ◽  
Author(s):  
XIAOSHUAN BAI ◽  
WENJIE ZHANG ◽  
WANZHI CAI

A new aradid, Aradacanthia heissi Bai, Zhang & Cai, sp. nov., from China, Thailand, and northern India is described. A key to related species is given and the diagnostic morphological features of new species are illustrated. This new species represents the first record of a Calisiinae in China.


Zootaxa ◽  
2020 ◽  
Vol 4810 (2) ◽  
pp. 344-350
Author(s):  
TATSUYA IDE ◽  
MU MU AUNG ◽  
NOBUYUKI TANAKA

A new cynipid species, Lithosaphonecrus mindatus Ide, Aung & Tanaka, sp. nov., is described from Chin State, northwestern Myanmar. This is the first record of Cynipidae from this country. The new species emerged from a bud gall of Lithocarpus thomsonii. The new species’ morphological features closely resemble L. arcoverticus Liu, Zhu & Pang, but differ from the latter due to the presence of a broad foveal septum on the mesoscutellum and short triangular median mesoscutal impression and absence of the anteroadmedian signum on the mesoscutum. Partial sequences of cytochrome c oxidase subunit I region (614 bp) show a 14–15% difference between the new species and other congeners. 


2020 ◽  
Vol 65 (2) ◽  
pp. 102-103
Author(s):  
A.P. Keim ◽  
C.C. Tan

A new species of Freycinetia (Pandanaceae; Freycinetoideae) from Llavac, Quezon Province in Luzon Island, the Philippines, is proposed here, namely Freycinetia nonatoi. Freycinetia nonatoi is characterized by a lobed auricle of the sheath with conspicuous spines on the margins and bright yellow bracts. These three morphological features distinguish it from the nearest species, F. sumatrana. The discovery of F. nonatoi also marks the first record of a member of the section Auriculifoliae with spiny margins.


2014 ◽  
Vol 64 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Jolanta Muszer

Abstract A new species of micromorphic articulate brachiopod (Rhynchonellida) Lambdarina jugowiensis sp. nov., from the upper Visean (Sokolec Beds) of central Sudetes, SW Poland, is described. The studied specimens are calcified, what makes them unique in respect of their state of preservation. The material is represented by a full range of growth stages; from brephic to gerontic. Based on its morphological features and the palaeogeographical distribution of all its known species, two main evolutionary lines are proposed for the genus; the Australian and the European ones. Lambdarina was widely distributed in the equatorial-tropical waters of marginal seas of the Palaeotethys Ocean, mostly during Mississippian time.


Author(s):  
Modest Guţu ◽  
Thomas Iliffe

Leptochelia Vatulelensis(Crustacea: Tanaidacea), A New Species From Anchialine Caves of the South-Western PacificLeptochelia vatulelensisn. sp., discovered on the small islands of Vatulele (Fijian group) and Ouvéa (Loyalty Islands, New Caledonia), is described and illustrated. The new species is distinguished from the others of the"Leptochelia-dubiagroup" (to which it is generally similar) by the following combination of morphological characteristics: (1) the presence of three to four distal setae on the maxilliped basis; (2) merus of pereopods III and IV with only a distosternal seta; (3) endopod of the uropods formed of four (rarely three) articles; (4) males with two (sometimes three) relatively short aesthetascs on the first five articles of the antennular flagellum; (5) male cheliped with a diminished dimorphism; (6) males with a vertical comb-row of setae on the cheliped propodus. Although it inhabits inland, anchialine caves, the new species lacks morphological features that are characteristic of some cave species.


ZooKeys ◽  
2018 ◽  
Vol 760 ◽  
pp. 89-112 ◽  
Author(s):  
Peter K. L. Ng ◽  
Paul Y. C. Ng

Seven species of freshwater crabs from three families are recorded from and around the Danum Valley Conservation Area in Sabah, Malaysian Borneo: Thelphusulacapillodigitus sp. n., Thelphusuladicerophilus Ng & Stuebing, 1990, Arachnothelphusaterrapes Ng, 1991, Terrathelphusasecula Ng & Tan, 2015, Parathelphusavalida Ng & Goh, 1987 (new record) (Gecarcinucidae); Isolapotamoningeri Ng & Tan, 1998 (Potamidae); and Geosesarmadanumense Ng, 2002 (Sesarmidae). The new species of Thelphusula Bott, 1979, can be distinguished from all congeners by a unique combination of morphological features, most notably the presence of dense patches of short setae on the fingers of the adult male chelipeds, as well as the structure of the male first gonopod. Arachnothelphusaterrapes is confirmed to be a phytotelm species. A key to all species in the conservation area is provided.


Zootaxa ◽  
2019 ◽  
Vol 4656 (3) ◽  
pp. 596-600
Author(s):  
GIORGIO SABELLA ◽  
FABIO MASSIMO VIGLIANISI ◽  
VERA D’URSO

Tychus meggiolaroi sp. n. from Lebanon is described and illustrated. It belongs to the Tychus cilicicus species group (Sabella & Kurbatov 2002) and can be readily distinguished from related taxa by the different structure of the aedeagus and morphological features of antennae. 


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