scholarly journals Sponges from Clipperton Island, East Pacific

Zootaxa ◽  
2011 ◽  
Vol 2839 (1) ◽  
pp. 1 ◽  
Author(s):  
ROB W. M. VAN SOEST ◽  
KIRSTIE L. KAISER ◽  
ROBERT VAN SYOC
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Sponge Species ◽  
Pacific Region ◽  
West Pacific ◽  
East Pacific ◽  
Remote Island ◽  
East And West ◽  
East Pacific Ocean

Twenty sponge species (totalling 190 individuals) were collected during the 1938, 1994 and 2004/5 expeditions to the remote island of Clipperton in the East Pacific Ocean. Seven species are widespread Indo-Pacific sponges; nine species comprise sponges new to science; four species were represented only by small thin patches insufficient for proper characterization and could be only determined to genus. The new species may not be necessarily endemic to the island, as several show similarities with species described from elsewhere in the East and West Pacific. Four species: Tethya sarai Desqueyroux-Faúndez & Van Soest (1997), Callyspongia (Callyspongia) roosevelti n.sp., Spongia (Spongia) sweeti (Kirkpatrick, 1900) and Suberea etiennei n.sp. were found commonly occurring in localities around the island in depths between 10 and 55 m, growing on dead corals, under overhangs and rubble stones. The remaining sponges were either rare or were thinly encrusting on coral fragments. The latter may be more abundant than appears from the present study as they are probably not easily observed. The sponge fauna of Clipperton Island shows strongest affinities with the Central and West Pacific regions and only two or three species are shared with the East Pacific region.

Coral boring Aka-species (Porifera: Phloeodictyidae) from Mexico with description of Aka cryptica sp. nov.

2007 ◽  
Vol 87 (6) ◽  
pp. 1477-1484 ◽  
Author(s):  
José Luis Carballo ◽  
Leanne Hepburn ◽  
Héctor H. Nava ◽  
José Antonio Cruz-Barraza ◽  
Eric Bautista-Guerrero
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Coral Reefs ◽  
Mexican Pacific ◽  
East Pacific ◽  
Mexican Caribbean ◽  
Caribbean Coral Reefs ◽  
The Caribbean ◽  
East Pacific Ocean ◽  
First Time

This paper focuses on Aka species boring coral of the East Pacific Ocean and the Caribbean Sea (Mexico). The new species Aka cryptica sp. nov. is described from Mexican Pacific coral reefs, which constitutes the first time that a species of the genus Aka is reported from the East Pacific Ocean. The new species lives cryptically boring coral species of the genus Pocillopora. It is characterized by the small size of their papillae (from 1 to 4.5 mm high and from 0.8 to 1.8 mm in diameter), and oxeas (from 67 to 120 μm), and their exposed parts blend in well with background colours which tend to be overlooked during benthic marine surveys. In addition, Aka coralliphaga and Aka brevitubulata from Mexican Caribbean coral reefs are redescribed. The latter species is reported for the first time in Mexico.

scholarly journals Two new species of Sympagella (Porifera: Hexactinellida: Rossellidae) collected from the Clarion-Clipperton Zone, East Pacific

Zootaxa ◽  
2018 ◽  
Vol 4466 (1) ◽  
pp. 152 ◽  
Author(s):  
SASCHA HERZOG ◽  
DIVA J. AMON ◽  
CRAIG R. SMITH ◽  
DORTE JANUSSEN
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Polymetallic Nodule ◽  
East Pacific ◽  
Polymetallic Nodules ◽  
Two New Species ◽  
Nodule Mining ◽  
Taxonomic Studies ◽  
East Pacific Ocean

Two new Hexactinellida species from the Clarion-Clipperton Zone (CCZ) in the East Pacific Ocean are described. They are the first described representatives of the genus Sympagella in this region. The new sponges were collected in 2013 during the ABYSSLINE Project´s first cruise, AB01, on board the RV Melville. The CCZ is known for its polymetallic nodules but megafaunal biodiversity is still poorly understood. Our findings suggest that the poriferan fauna of the eastern CCZ is both species rich and inadequately known, and that substantially more sampling and taxonomic studies of the CCZ sponge fauna are required to establish a megafaunal biogeography and evaluate potential extinction risks resulting from polymetallic-nodule mining. 

Six new species of the gutless genus Olavius (Annelida: Clitellata: Tubificidae) from New Caledonia

Zootaxa ◽  
2007 ◽  
Vol 1400 (1) ◽  
pp. 45
Author(s):  
CHRISTER ERSÉUS ◽  
ULRIKA BERGFELDT
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Male Genitalia ◽  
New Caledonia ◽  
Pacific Region ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
South West ◽  
Shallow Water Sediments

Six species of the gutless marine tubificid genus Olavius Erséus, 1984 (Phallodrilinae), O. paraloisae sp. nov., O. amplectens sp. nov., O. isomerus sp. nov., O. fidelis sp. nov., O.lifouensis sp. nov., and O. nivalis sp. nov., are described from shallow-water sediments in New Caledonia (including the Loyalty Islands), in the South West Pacific Ocean. Olavius amplectus is similar (but not necessarily closely related) to a North West Atlantic species. The others appear closely related to previously described taxa in the Indo-West Pacific region, but they differ in the number of secondary body annuli, the number, shape and arrangement of chaetae, or in details of the male genitalia and/or spermathecae. Moreover, fixed (contracted) specimens of O. nivalis measured up to 34 mm length, which makes it one of the largest species of gutless Phallodrilinae known to date.

Six new species of the gutless genus Olavius (Annelida: Clitellata: Tubificidae) from New Caledonia

Zootaxa ◽  
2007 ◽  
Vol 1400 (1) ◽  
pp. 45-58
Author(s):  
CHRISTER ERSÉUS ◽  
ULRIKA BERGFELDT
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Male Genitalia ◽  
New Caledonia ◽  
Pacific Region ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
South West ◽  
Shallow Water Sediments

Six species of the gutless marine tubificid genus Olavius Erséus, 1984 (Phallodrilinae), O. paraloisae sp. nov., O. amplectens sp. nov., O. isomerus sp. nov., O. fidelis sp. nov., O.lifouensis sp. nov., and O. nivalis sp. nov., are described from shallow-water sediments in New Caledonia (including the Loyalty Islands), in the South West Pacific Ocean. Olavius amplectus is similar (but not necessarily closely related) to a North West Atlantic species. The others appear closely related to previously described taxa in the Indo-West Pacific region, but they differ in the number of secondary body annuli, the number, shape and arrangement of chaetae, or in details of the male genitalia and/or spermathecae. Moreover, fixed (contracted) specimens of O. nivalis measured up to 34 mm length, which makes it one of the largest species of gutless Phallodrilinae known to date.

Ultra-microfossils in Manganese Stromatolites from the East Pacific Ocean

2020 ◽  
pp. 182-192
Author(s):  
Bian Lizeng ◽  
Lin Chengyp ◽  
Zhang Fusheng ◽  
Du Dean ◽  
Chen Jianlin ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
East Pacific ◽  
East Pacific Ocean

Mycale species of the tropical Indo-West Pacific (Porifera, Demospongiae, Poecilosclerida)

Zootaxa ◽  
2021 ◽  
Vol 4912 (1) ◽  
pp. 1-212
Author(s):  
ROB W.M. VAN SOEST ◽  
RATIH ARYASARI ◽  
NICOLE J. DE VOOGD
Keyword(s):  
New Species ◽  
Junior Synonym ◽  
Pacific Region ◽  
Tropical Atlantic ◽  
Type Specimens ◽  
West Pacific ◽  
Warm Temperate ◽  
Comprehensive Study

The species of the cosmopolitan sponge genus Mycale occurring in the tropical Indo-West Pacific region and adjacent subtropical waters are reviewed taxonomically. Specimens incorporated in the collections of the Naturalis Biodiversity Center form the basis of this comprehensive study, supplemented by (type) specimens borrowed from or examined in other institutions. Specimens available numbered 351, belonging to 44 species, including 14 species new to science, Mycale (Aegogropila) prognatha sp.nov., Mycale (Carmia) amiri sp.nov., Mycale (Carmia) fungiaphila sp.nov., Mycale (Carmia) monomicrosclera sp.nov., Mycale (Carmia) tenuichela sp.nov., Mycale (Carmia) tubiporicola sp.nov., Mycale (Carmia) tydemani sp.nov., Mycale (Mycale) asigmata sp.nov., Mycale (Mycale) grandoides sp.nov., Mycale (Mycale) sundaminorensis sp.nov., Mycale (Naviculina) mascarenensis sp.nov., Mycale (Paresperella) sceptroides sp.nov., Mycale (Paresperella) seychellensis sp.nov., Mycale (Zygomycale) sibogae sp.nov. Three species, indicated by the designation ‘aff.’, were not definitely assigned to known or new species due to uncertainty of their identity. The genus Kerasemna, previously considered a junior synonym of Mycale, was revived as an additional subgenus Mycale (Kerasemna). One species, previously assigned to the genus Desmacella as D. lampra De Laubenfels is here reassigned to Mycale, subgenus at present undecided. Additionally, species previously reported from the region but not represented in our collections are briefly characterized and discussed. We propose new names Mycale (Mycale) mauricei nom.nov. for Mycale macrochela Burton (junior primary homonym of Mycale fistulata var. macrochela Hentschel) and Mycale (Mycale) bouryesnaultae nom.nov. for Mycale (Mycale) fibrosa Boury-Esnault & Van Beveren (junior primary homonym of Mycale (Aegogropila) adhaerens subsp. fibrosa Koltun). Keys to the species of each subgenus occurring in the region are provided. The opportunity of having studied this comprehensive set of species and specimens from the tropical Indo-West Pacific is taken to review and discuss the morphological and biogeographical data gathered so far on the genus Mycale. The genus currently comprises approximately 255 accepted species, with highest diversity focused in tropical Atlantic and Indo-West Pacific regions as well as in warm-temperate Mediterranean-Atlantic regions. 

Two new species of Geodiidae (Porifera, Demospongiae, Astrophorina) from the Emperor Seamounts, North Pacific Ocean

Zootaxa ◽  
2019 ◽  
Vol 4671 (3) ◽  
pp. 381-395 ◽  
Author(s):  
HELMUT LEHNERT ◽  
ROBERT P. STONE
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Sponge Species ◽  
Two New Species ◽  
Emperor Seamounts ◽  
First Descriptions

Two new species of Geodiidae from the Emperor Seamounts, North Pacific Ocean are described and compared to congeners. Erylus imperator n. sp. differs from all other species of Erylus from the region in having large oxyasters, present in only one other species from which it differs in several other characters. Furthermore these oxyasters most often display the tendency to reduce the number of rays to a degree that they appear as triods, microxeas or even microtylostyles, depending on the number of retained rays. The second new species, Geodia arma n. sp. is a Geodia without triaenes, a group formerly described under the genus Geodinella. We compared G. arma n. sp. with all congeners lacking triaenes and determined that it is the only known species with a cortex of up to 6 mm in thickness and also the only species with oxeas up to 6 mm in length Which range from thin and sinuous to thick and straight. To our knowledge these are the first descriptions of sponge species from the Emperor Seamount region. 

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