scholarly journals New sibling species and new occurrences of squat lobsters (Crustacea, Decapoda) from the western Indian Ocean

2017 ◽  
Author(s):  
Enrique Macpherson ◽  
Paula C. Rodríguez-Flores ◽  
Annie Machordom
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Taxonomic Status ◽  
Western Indian Ocean ◽  
Molecular Data ◽  
Central Indian Ocean ◽  
Colour Patterns ◽  
Clear Increase ◽  
New Occurrences ◽  
Squat Lobsters

Numerous specimens of squat lobsters belonging to the families Munididae, Munidopsidae and Eumunididae were collected during several cruises along the eastern coasts of Africa. The study of these specimens revealed the presence of 10 new species (one Eumunida Smith, 1883, eight Munida Leach, 1820 and one Munidopsis Whiteaves, 1874). We describe and illustrate these new species, providing some new data on occurrences and colour patterns for previously described taxa. We have also included molecular data from two mitochondrial markers (16S rRNA and COI) to support the taxonomic status of different species. Some deep-sea species show a clear increase in their geographic range distribution. Finally, a key to known species of the genus Munida from the western and central Indian Ocean is also presented.

scholarly journals New species of squat lobsters of the genus Munida from Australia

2021 ◽  
pp. 113-152
Author(s):  
Anna W. McCallum ◽  
Shane T. Ahyong ◽  
Nikos Andreakis
Keyword(s):  
New Species ◽  
16S Rrna ◽  
Continental Margin ◽  
Taxonomic Status ◽  
Molecular Data ◽  
Continental Margins ◽  
Mitochondrial Markers ◽  
Colour Patterns ◽  
A New Species ◽  
Squat Lobsters

This study reports on new squat lobsters of the genus Munida collected during recent surveys of Australia’s continental margins. We report on 33 species of Munida including seven new species and 14 new range extensions for Australia. More than 500 specimens were collected, mostly from the western continental margin of Australia, but also including a new species from deep water (>2000 m) off Tasmania. We provide new data on the colour patterns of some species and include molecular data from two mitochondrial markers (16S rRNA and COI) to support the taxonomic status of the new species.

A review of the gobiid fish genus Trimma from the Chagos Archipelago, central Indian Ocean, with the description of seven new species

1984 ◽  
Vol 62 (4) ◽  
pp. 695-715 ◽  
Author(s):  
Richard Winterbottom
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Western Pacific ◽  
Valid Species ◽  
Gobiid Fish ◽  
Central Indian Ocean ◽  
The Pacific ◽  
Chagos Archipelago ◽  
The Western Pacific

The genus Trimma contains 17 nominal and 13 valid species. Five of these are here reported from the Chagos Archipelago: T. eviotops, T. macrophthalma, T. mendelssohni. T. nauclei, and T. taylori. An additional 7 species arc described as new and another is described but not named, for a total of 13 species known from these islands. The biogeographic affinities of Chagos species of Trimma appear to lie with the western Indian Ocean rather than the western Pacific, but the evidence is weak because of the lack of knowledge of the Pacific Trimma fauna.

Southern high latitude squat lobsters II: description of Uroptychus macquariae sp. nov. from Macquarie Ridge

Zootaxa ◽  
2017 ◽  
Vol 4353 (2) ◽  
pp. 327
Author(s):  
KAREEN E. SCHNABEL ◽  
INGO BURGHARDT ◽  
SHANE T. AHYONG
Keyword(s):  
Indian Ocean ◽  
Sequence Data ◽  
Western Indian Ocean ◽  
Molecular Data ◽  
Separate Species ◽  
The Indian Ocean ◽  
Morphological Differences ◽  
Morphological And Molecular Data ◽  
Southern High Latitude ◽  
Squat Lobsters

Squat lobsters have only recently been recorded from the Macquarie Ridge, which extends south between New Zealand and Antarctica. Among these, Uroptychus insignis (Henderson, 1885) was recorded for the first time outside the western Indian Ocean, exhibiting only subtle morphological differences. Reexamination of the Macquarie Ridge and Indian Ocean specimens attributed to U. insignis using morphological and molecular data revealed the Macquarie Ridge form to represent a separate species. Subtle but consistent morphological differences are evident and partial CO1 sequence data indicates that the specimens collected on Macquarie Ridge differ from those collected in the Indian Ocean by more than 7%. The Macquarie Ridge species is described herein as Uroptychus macquariae n.sp. Subtle morphological differences between the new species and U. insignis are discussed.  

Systematics of the genus Halgerda Bergh, 1880 (Heterobranchia : Nudibranchia) of Mozambique with descriptions of six new species

2018 ◽  
Vol 32 (6) ◽  
pp. 1388
Author(s):  
Yara Tibiriçá ◽  
Marta Pola ◽  
Juan Lucas Cervera
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Molecular Data ◽  
Colour Variation ◽  
Additional Information ◽  
Species Complexes ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Pseudocryptic Species

The species of the genus Halgerda Bergh, 1880, are restricted to the Indo-Pacific; some being common inhabitants of reefs off the coast of Mozambique. These species have been relatively well studied morphologically, but few molecular data are available. During a seven-year period surveying the reefs of Mozambique, 11 Halgerda spp. were collected, six of which are described here. We provide details on their morphology, anatomy, novel genetic markers and additional information about their colour variation. The new species described herein are Halgerda leopardalis, sp. nov., H. mozambiquensis, sp. nov., H. jennyae, sp. nov., H. meringuecitrea, sp. nov., H. nuarroensis, sp. nov. and H. indotessellata, sp. nov., the last of which was found to be a pseudocryptic species of H. tessellata. Moreover, we identified two species complexes, one composed mainly of specimens from the Western Indian Ocean and another with specimens mostly from the Pacific Ocean and Western Australia.

Gebiacantha sagamiensis, a new species of upogebiid shrimp (Crustacea: Decapoda: Gebiidea) from Sagami Bay, central Japan

Zootaxa ◽  
2017 ◽  
Vol 4263 (3) ◽  
Author(s):  
TOMOYUKI KOMAI
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Taxonomic Status ◽  
Western Indian Ocean ◽  
La Réunion ◽  
Sagami Bay ◽  
Central Japan ◽  
Single Male ◽  
Male Specimen ◽  
A New Species

A new species of the upogebiid shrimp genus Gebiacantha Ngoc-Ho, 1989, G. sagamiensis, is described and illustrated on the basis of a single male specimen collected from Sagami Bay, central Japan, at depths of 101–106 m. It appears closest to G. reunionensis Ngoc-Ho, 1989, known only from La Réunion, western Indian Ocean, but the different shape of the pleomere 6 and the better developed armature of the pereopod 1 carpus distinguish the new species from G. reunionensis. Comments on the taxonomic status of Gebiacantha and Paragebicula Sakai, 2006, and on the generic assignment of the new species, are given.

Four New Species of Labronema Thorne, 1939 From Islands in the Western Indian Ocean (Nematoda: Dorylaimoidea)

Nematologica ◽  
1993 ◽  
Vol 39 (1-4) ◽  
pp. 450-465
Author(s):  
J. Heyns ◽  
Antoinette Swart ◽  
J.P. Furstenberg
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean

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. 

Callogobius winterbottomi, a new species of goby (Teleostei: Gobiidae) from the Western Indian Ocean

Zootaxa ◽  
2013 ◽  
Vol 3630 (1) ◽  
pp. 155-164 ◽  
Author(s):  
NAOMI R. DELVENTHAL ◽  
RANDALL D. MOOI
Keyword(s):  
South Africa ◽  
New Species ◽  
Indian Ocean ◽  
Western Indian Ocean ◽  
Caudal Peduncle ◽  
Additional Specimen ◽  
Group A ◽  
Urogenital Papilla ◽  
A New Species

Callogobius winterbottomi new species is described from the 33.8 mm SL holotype and two paratypes (32.2 mm SL and 22.9 mm SL) from the Comoros, Western Indian Ocean. It is distinguished from all other known Callogobius species by the following combination of characters: sensory pores absent, 23–26 scales in lateral series, and sensory papillae pre-opercular row not continuous with transverse opercular row. One additional specimen of Callogobius winterbottomi was located from South Africa. A new standardized naming system for Callogobius sensory papillae rows is presented for identification and clarification of character states among Callogobius species. The new species is tentatively placed among what we term the “sclateri group”, a clade including C. sclateri (Steindachner) and three other species that exhibit a modified female urogenital papilla with lateral distal flaps and elongate ctenii on the caudal peduncle scales. Callogobius tutuilae (Jordan & Seale) is removed from synonymy with C. sclateri because it has partially united pelvic fins (vs separate) and the preopercular sensory papillae row is continuous with the transverse opercular row (vs separate).

scholarly journals A Central Indian Ocean Mode and Heavy Precipitation during the Indian Summer Monsoon

2017 ◽  
Vol 30 (6) ◽  
pp. 2055-2067 ◽  
Author(s):  
Lei Zhou ◽  
Raghu Murtugudde ◽  
Dake Chen ◽  
Youmin Tang
Keyword(s):  
Indian Ocean ◽  
Summer Monsoon ◽  
Indian Summer Monsoon ◽  
Critical Role ◽  
Western Indian Ocean ◽  
Heavy Precipitation ◽  
Central Indian Ocean ◽  
Monsoonal Precipitation ◽  
Monsoon System ◽  
The Indian Ocean

A central Indian Ocean (CIO) mode is found to play a critical role in driving the heavy precipitation during the Indian summer monsoon (ISM). It is typically denoted with a combination of intraseasonal sea surface temperature (SST) anomalies and intraseasonal wind anomalies over the central Indian Ocean, and it preserves the mechanistic links among various dynamic and thermodynamic fields. Like a T junction, it controls the propagation direction of the intraseasonal variabilities (ISVs) originating in the western Indian Ocean. During the ISM, the CIO mode creates an environment favorable for the northward-propagating mesoscale variabilities. These results unveil the relation between the subseasonal monsoonal precipitation and the CIO mode in the ocean–atmosphere system in the Indian Ocean. The identification of the CIO mode deepens our understanding of the coupled monsoon system and brightens the prospects for better simulation and prediction of monsoonal precipitation in the affected countries.

scholarly journals Gracilaria phuquocensis sp. nov., a new flattened Gracilaria species (Gracilariales, Rhodophyta), previously recognized as G. mammillaris, from the southern coast of Vietnam

2020 ◽  
Author(s):  
HN Le ◽  
N Muangmai ◽  
S Kheauthong ◽  
Z Sun ◽  
Giuseppe Zuccarello
Keyword(s):  
New Species ◽  
South China Sea ◽  
South China ◽  
Taxonomic Status ◽  
Molecular Data ◽  
The South China Sea ◽  
The South ◽  
Western Atlantic ◽  
China Sea ◽  
Coast Of Vietnam

© 2019 Japanese Society of Phycology Flattened Gracilaria species are widely distributed along the coasts of the South China Sea with more than 20 species recorded. Within the South China Sea, Gracilaria mammillaris has only been reported from Vietnam, but this species is likely restricted to the western Atlantic. This study aimed to reevaluate the taxonomic status of Vietnamese specimens of ‘G. mammillaris’ using combined morphological and molecular data. Our data clearly indicated that Vietnamese specimens were morphologically and genetically distinct from authentic G. mammillaris from the western Atlantic, and also other described flat Gracilaria species. We, therefore, propose that specimens from Vietnam originally identified as G. mammillaris be designated as a new species, Gracilaria phuquocensis sp. nov. Morphologically, G. phuquocensis can be distinguished from other flat Gracilaria species by its small thallus size, narrower blades, many medullary layers, abundant basal nutritive filaments within mature cystocarps, and tetrasporangial nemathecium. Our rbcL sequence analyses showed that the new species was sister to Gracilaria rhodymenioides from Thailand, and these two species formed a clade with cylindrical Gracilaria species. Our study contributes to clarification of the taxonomic status of misidentified specimens attributed to the flattened Gracilaria species in the South China Sea.

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