Records of the hermit crab genus Pagurixus Melin, 1939 (Crustacea: Decapoda: Anomura: Paguridae) from Europa Island, western Indian Ocean, with descriptions of two new species

Zootaxa ◽  
2013 ◽  
Vol 3608 (3) ◽  
pp. 191-203 ◽  
Author(s):  
TOMOYUKI KOMAI ◽  
JOSEPH POUPIN
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Hermit Crab ◽  
Western Indian Ocean ◽  
Species Group ◽  
Diagnostic Characters ◽  
Two New Species ◽  
First Time

Three species of the pagurid hermit crab genus Pagurixus Melin, 1939, are reported from Europa Island in the Mozambique Strait, western Indian Ocean: P. haigae Komai & Osawa, 2007, P. annulus n. sp., and P. europa n. sp. Pagurixus haigae is recorded from the western Indian Ocean for the first time. Pagurixus annulus n. sp. and P. europa n. sp. are referred to the P. boninensis (Melin, 1939) species group and P. anceps (Forest, 1954) group, respectively. Diagnostic characters of these two new species are discussed.

Trigonidiinae crickets from Rodrigues island: from widespread pantropical species to critically endangered endemic species

Zootaxa ◽  
2012 ◽  
Vol 3191 (1) ◽  
pp. 41 ◽  
Author(s):  
SYLVAIN HUGEL
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Endemic Species ◽  
Male Genitalia ◽  
Conservation Status ◽  
Western Indian Ocean ◽  
Critically Endangered ◽  
New Subgenus ◽  
Two New Species ◽  
First Time

The Trigonidiinae crickets of Rodrigues are examined. Two species widespread in South Western Indian Ocean islandsare recorded in Rodrigues for the first time: Trigonidium cicindeloides Rambur, 1839 and Natula longipennis (Serville,1839). Nemobius luteolus Butler, 1876 is a Trigonidiinae and not a Nemobiinae, it is transferred to Metioche Stål, 1877 asMetioche luteolus (Butler, 1876), n. comb. Two new species are described from the restored areas of the island. Thesenew species are tentatively considered as Metioche and included in the new subgenus Superstes n. subgen.: Metioche (Su-perstes) superbus n. subgen., n. sp. and Metioche (Superstes) payendeei n. subgen., n. sp. This new subgenus is charac-terized by the male genitalia asymmetry and the striking hyperthely of the left pseudepiphallic lophi and paramere. Elements of the ecology of endemic Trigonidiinae of Rodrigues are given, and their conservation status is assessed.

Two new species of the spider genus Pholcus Walckenaer, 1805 (Araneae: Pholcidae) from Pakistan

Zootaxa ◽  
2020 ◽  
Vol 4820 (1) ◽  
pp. 177-185
Author(s):  
TIANQI LAN ◽  
ZHIYUAN YAO ◽  
ABID ALI ◽  
GUO ZHENG ◽  
SHUQIANG LI
Keyword(s):  
New Species ◽  
Species Group ◽  
Male And Female ◽  
Female Type ◽  
Chinese Academy Of Sciences ◽  
Two New Species ◽  
Academy Of Sciences ◽  
Gilgit Baltistan ◽  
First Time ◽  
Beijing China

The genus Pholcus Walckenaer, 1805 is reported from Pakistan for the first time. Two new species of the Pholcus nenjukovi species-group are described: Pholcus hamuchal Yao & Li sp. nov. (Gilgit Baltistan, male and female) and Pholcus kalam Yao & Li sp. nov. (Khyber Pakhtunkhwa, male and female). Type material is deposited in the Institute of Zoology, Chinese Academy of Sciences (IZCAS) in Beijing, China.

Two new species and records of Olophrum laxum species group (Coleoptera: Staphylinidae: Omaliinae: Anthophagini) from China and Nepal

Zootaxa ◽  
2018 ◽  
Vol 4399 (2) ◽  
pp. 295
Author(s):  
ALEXEY V. SHAVRIN
Keyword(s):  
New Species ◽  
Species Group ◽  
Two New Species ◽  
First Time

Two new species of the genus Olophrum Erichson, 1839 of the laxum group are described and illustrated: O. lama Shavrin, sp.n. (Nepal: Rolwaling Himal) and O. schuelkei Shavrin, sp.n. (China: Shaanxi). Olophrum laxum Shavrin & Smetana, 2017 from Yunnan and O. pacei Shavrin & Smetana, 2017 from Shaanxi and Hubei provinces of China are recorded for the first time. A modified key of the laxum group is provided. 

Two new species of Leptarma (Decapoda, Brachyura, Sesarmidae) from the Western Indian Ocean with notes on their phylogeny

Zootaxa ◽  
2020 ◽  
Vol 4816 (4) ◽  
pp. 439-456
Author(s):  
ADNAN SHAHDADI ◽  
CHRISTOPH D. SCHUBART
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Relative Length ◽  
Western Indian Ocean ◽  
Cox1 Gene ◽  
Congeneric Species ◽  
Species Pair ◽  
Two New Species ◽  
Close Relationship ◽  
De Man

Two new species of Leptarma, L. dispersum n. sp. and L. reunionense n. sp. are described from Europa Island and Réunion Island, respectively. Genetically, based on the mitochondrial COX1 gene, both species are markedly divergent from other congeneric species. Phylogenetically, L. dispersum n. sp. shows close relationship with L. lenzii (De Man, 1895) while L. reunionense n. sp. clusters with L. aurifrons (Li, Ng & Shih, 2019) and the species pair L. moluccense (De Man, 1892) and L. paucitorum (Rahayu & Ng, 2009). Morphologically, the new species differ most significantly from congeners by the relative length of the ambulatory legs and the shapes of the first gonopods and carapace. After the description of these two new species, the number of species comprised in the genus Leptarma is raised to 20, four of them being distributed in and off East Africa. 

On the taxonomy of the genus Agrisius Walker, 1855, with descriptions of two new species from Vietnam and Laos (Lepidoptera, Erebidae, Arctiinae)

Zootaxa ◽  
2018 ◽  
Vol 4459 (1) ◽  
pp. 128 ◽  
Author(s):  
ANTON V. VOLYNKIN ◽  
VLADIMIR V. DUBATOLOV ◽  
YASUNORI KISHIDA
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Species Group ◽  
Female Genitalia ◽  
Two New Species ◽  
Species Groups ◽  
First Time

Two new species of the genus Agrisius Walker, 1855, A. orhanti Volynkin, Dubatolov & Kishida, sp. n. and A. leloii Volynkin, Dubatolov & Kishida, sp. n. are described from South Laos and Vietnam respectively. A. orhanti sp. n. belongs to the A. japonicus Leech, 1889 species-group. Whereas, the male genitalia structure of A. leloii sp. n. is intermediate between those of the A. japonicus and the A. guttivitta Walker, 1855 species-groups, therefore, it is assigned to a separated species-group (the A. leloii species-group). Agrisius dubatolovi Orhant, 2012 is downgraded as a subspecies of A. japonicus: Agrisius japonicus dubatolovi Orhant, 2012, stat. nov. Female genitalia of species of the A. japonicus and most of the A. guttivitta species-groups are illustrated for the first time. 

Two new species of Trevathana (Crustacea, Cirripedia, Balanomorpha, Pyrgomatidae) from the Western Indian Ocean and French Polynesia

Zootaxa ◽  
2009 ◽  
Vol 2116 (1) ◽  
pp. 46-52 ◽  
Author(s):  
YAIR ACHITUV ◽  
YAAKOV LANGZAM
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
French Polynesia ◽  
Terra Incognita ◽  
Two New Species ◽  
The Indian Ocean ◽  
Basal Margin ◽  
Ocean Islands

Two new species of the Pyrgomatid barnacle Trevathana are described: Trevathana synthesysae nov. sp., extracted from Plesiastrea versipora from the Indian Ocean Islands Réunion and Mauritius, and Trevathana isfae nov. sp. from a colony of Favia stelligera from French Polynesia, which, until recently, was terra incognita with regard to coral-inhabiting barnacles. The two new species are distinctive by their relatively broad scutum as compared to Trevathana dentatum, their prominent adductor ridge extending beyond the basal margin of the scutum, and their quadrangular tergum.

Two new species and a new record of Metacirolana Kussakin, 1979 (Crustacea: Isopoda: Cirolanidae) from Indonesia

Zootaxa ◽  
2018 ◽  
Vol 4370 (5) ◽  
pp. 519 ◽  
Author(s):  
CONNI M. SIDABALOK ◽  
NIEL L. BRUCE
Keyword(s):  
New Species ◽  
Body Size ◽  
Coral Reefs ◽  
New Record ◽  
Small Body ◽  
Species Group ◽  
Small Body Size ◽  
Two New Species ◽  
Smooth Body ◽  
First Time

Two new species of Metacirolana from coral reefs in Indonesia are described and Metacirolana spinosa (Bruce, 1980) is recorded for the first time in Indonesia. Metacirolana lombok sp. nov. and Metacirolana mioskon sp. nov. show similarities with several other species of Metacirolana forming a species group within the genus, characterized by small body size (2.0–3.5 mm), smooth body surfaces, weakly produced rostrum, lack of dorsal carinae and abundant chromatophores. 

Taxonomic study of the fern genera Abrodictyum C.Presl and Trichomanes L. (Hymenophyllaceae, Polypodiidae) in the western Indian Ocean, and description of a new Abrodictyum species for Madagascar

Phytotaxa ◽  
2017 ◽  
Vol 327 (3) ◽  
pp. 201
Author(s):  
JEAN-YVES DUBUISSON ◽  
LUCIE BAURET ◽  
AURELIE GRALL ◽  
BRUNO SENTERRE ◽  
AHAMADA H. SAID ◽  
...  
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Molecular Phylogeny ◽  
Taxonomic Revision ◽  
Western Indian Ocean ◽  
Taxonomic Study ◽  
Field Observations ◽  
Diagnostic Characters ◽  
Morphological Investigations

Recent studies on both genera Abrodictyum and Trichomanes (Hymenophyllaceae) in western Indian Ocean (Madagascar and neighbouring islands) resolved many taxonomic problems and led to the identification of new species. We propose here to finalize the taxonomic revision of both genera for the region, by completing and combining an expanded rbcL molecular phylogeny with morphological investigations and field observations on all the recognized species. Our results confirm the distinction of the supposedly six species of Abrodictyum and three species of Trichomanes. They also reveal the polyphyly of the highly polymorphic A. meifolium. Additional investigations on A. meifolium suggest the existence of at least two distinct taxa: the true highly variable and widespread A. meifolium which is renamed A. parviflorum comb. nov. and the newly described A. cylindratum sp. nov. restricted to Madagascar. A key and updated descriptions (including new diagnostic characters for A. tamarisciforme) are provided for the seven Abrodictyum and three Trichomanes species present in the western Indian Ocean.

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