scholarly journals New intertidal crickets from Comoros and Mascarene islands (Orthoptera: Trigonidiidae: Nemobiinae: Burcini)

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 1-26
Author(s):  
SYLVAIN HUGEL ◽  
LAURE DESUTTER-GRANDCOLAS

Nemobiinae crickets of the tribe Burcini Gorochov, 1986 are described for the first time from the shores of South Western Indian Ocean islands. The new genus Makalapobius n. gen. is proposed to include M. aigrettensis n. gen. n. sp. from Mauritius and M. masihu n. gen. n. sp. from Grande Comore, and the new genus Gabusibius n. gen. to include G. ndzilu n. gen. n. sp. from Anjouan, G. mosi n. gen. n. sp., from Mohéli, and G. dzindzanu n. gen. n. sp. from Mayotte. The species Speonemobius littoreus Vannini & Chelazzi, 1978 from Somalia coast is tentatively placed in the genus Gabusibius n. gen. as G. ? litoreus (Vannini & Chelazzi, 1978) n. gen. n. comb. The songs of G. mosi n. gen. n. sp. and M. aigrettensis n. gen. n. sp. are described. The threats to SWIO Burcini and endemism of Orthoptera from SWIO coastal areas are discussed.  

PhytoKeys ◽  
2018 ◽  
Vol 96 ◽  
pp. 79-86 ◽  
Author(s):  
Murielle Simo-Droissart ◽  
Bonaventure Sonké ◽  
Vincent Droissart ◽  
Tariq Stévart

A recent phylogenetic study showed that species assigned to the newly recognised genus Pectinariella Szlach., Mytnik & Grochocka (previously treated as AngraecumBorysect.Pectinaria Benth.) are polyphyletic, comprising a clade with species primarily in Madagascar and the Western Indian Ocean islands (including the type) and another non-sister clade whose members occur in continental Africa and the Gulf of Guinea islands. In order to render Pectinariella monophyletic, the five continental African species must therefore be removed. A new genus, Afropectinariella M.Simo & Stévart, is described and the following combinations are made: Afropectinariellaatlantica (Stévart & Droissart) M.Simo & Stévart, Afropectinarielladoratophylla (Summerh.) M.Simo & Stévart, Afropectinariellagabonensis (Summerh.) M.Simo & Stévart, Afropectinariellapungens (Schltr.) M.Simo & Stévart and Afropectinariellasubulata (Lindl.) M.Simo & Stévart.


PhytoKeys ◽  
2018 ◽  
Vol 108 ◽  
pp. 85-116 ◽  
Author(s):  
Iris Montero Muñoz ◽  
José María Cardiel ◽  
Geoffrey A. Levin

This work presents a critical nomenclatural review of the Acalypha species of the Western Indian Ocean Region (Madagascar, the Comoros Archipelago, the Mascarene Islands and the Seychelles Archipelago). This is the first treatment of Acalypha of Madagascar since Leandri’s monograph in 1942. A total of 151 scientific names related to Acalypha from this region are treated. We recognise 35 species (28 native and seven introduced), treat 93 names as synonyms (28 of them for the first time) and identify three as doubtful or excluded names. We designate lectotypes for 41 names, make two new combinations and propose one new name.


2009 ◽  
Vol 44 (1) ◽  
pp. 55-70
Author(s):  
Peter John Taylor ◽  
Jennifer Lamb ◽  
Devendran Reddy ◽  
Theshnie Naidoo ◽  
Fanja Ratrimomanarivo ◽  
...  

Zootaxa ◽  
2012 ◽  
Vol 3367 (1) ◽  
pp. 211 ◽  
Author(s):  
JOSE CHRISTOPHER E. MENDOZA ◽  
PAUL F. CLARK ◽  
PETER K. L. NG

The identity of the rare xanthid crab, Pilumnoplax acanthomerus Rathbun, 1911, originally described from the AmiranteIslands in the western Indian Ocean, is elucidated. Števčić (2005) transferred the species from Pilumnoplax Stimpson,1858, to a new genus, Linnaeoxantho. This monotypic genus is re-diagnosed and new morphological characters are high-lighted. New records from Ryukyu and Line Islands, in the western and central Pacific, respectively, are reported. Linnae-oxantho is compared with the morphologically similar Melybia Stimpson, 1871, from the western Atlantic, and theiraffinities are discussed. Linnaeoxanthinae Števčić, 2005, is here recognised as a valid xanthid subfamily for Linnaeoxantho and Melybia, and is considered to have priority over Melybiidae Števčić, 2005.


Zootaxa ◽  
2009 ◽  
Vol 2116 (1) ◽  
pp. 46-52 ◽  
Author(s):  
YAIR ACHITUV ◽  
YAAKOV LANGZAM

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.


2013 ◽  
Vol 44 (1) ◽  
pp. 80 ◽  
Author(s):  
Amélie Desvars ◽  
Alain Michault ◽  
Pascale Bourhy

2015 ◽  
Vol 8 ◽  
Author(s):  
Anil Mohapatra ◽  
Dipanjan Ray ◽  
David G. Smith

Gymnothorax prolatusis recorded for the first time from the Indian Ocean on the basis of four specimens collected in the Bay of Bengal off India and one from the Arabian Sea off Pakistan. These records extend the range of the species from Taiwan to the north-western Indian Ocean.


Although wild populations are now confined to Aldabra, giant tortoises were originally present on many other Indian Ocean islands. All belong to the genus Geochelone but are referable to two distinct subgenera, Cylindraspis in the Mascarene islands and Aldabrachelys on Madagascar, Aldabra, the Seychelles and neighbouring islands. These are distinguishable by skull and nasal structure, degree of shell ankylosis and structure of the plastron. Neither group has obvious close relatives in other areas. Mascarene tortoises, which are completely extinct, comprised several species: G. vosmaeri and the smaller G. peltastes on Rodrigues, G. inepta and G. triserrata on Mauritius, and what should probably be called G. indica on Réunion. All the tortoises of Aldabra, the Seychelles and neighbouring islands seem to be referable to one species, G. gigantea which appears to have shown some geographical variation. Madagascar probably had two species, G. grandidieri and another usually named G. abrupta which may well be conspecific with G. gigantea and was possibly the source of the Aldabra populations. Many of the distinctive features of Indian Ocean and Galápagos giant tortoises are interpretable as adaptations to the peculiar environment of ocean islands, particularly their lack of big predators and competing herbivores.


2008 ◽  
Vol 46 (4) ◽  
pp. 684-689 ◽  
Author(s):  
C. A. Kull ◽  
J. Tassin ◽  
G. Rambeloarisoa ◽  
J.-M. Sarrailh

Zootaxa ◽  
2011 ◽  
Vol 3025 (1) ◽  
pp. 38 ◽  
Author(s):  
YUKIO IWATSUKI ◽  
PHILLIP C. HEEMSTRA

The Doublebar Seabream, Acanthopagrus bifasciatus (Forsskål 1775) with two conspicuous vertical black bars across the head has long been recognized as a distinctive species from the Red Sea and Western Indian Ocean. Two distinct colour patterns are associated with two allopatric populations except southern Oman and Somalia which appears to be a zone of overlap: a northern population (Red Sea, through Persian Gulf, to Pakistan) with dorsal and caudal fins immaculate yellow; and a southern population (east coast of Africa from the Horn of Africa to South Africa, Madagascar, and Mascarene Islands) having the dorsal fin with a wide black margin and caudal fin rear margin with a narrow black edge (and both black margins disappearing with growth in specimens over 30 cm SL). Both populations resulted in the two valid species: A. bifasciatus for the northern population and A. catenula (Lacepède 1801) for the southern population. Nominal species (junior synonyms) of the two species are discussed.


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