scholarly journals Polymastiidae (Demospongiae: Hadromerida) with ornamented exotyles: a review of morphological affinities and description of a new genus and three new species

2016 ◽  
Vol 97 (6) ◽  
pp. 1351-1406 ◽  
Author(s):  
Alexander Plotkin ◽  
Christine Morrow ◽  
Elena Gerasimova ◽  
Hans Tore Rapp

All polymastiid sponges displaying ornamented exotyles are reviewed and their morphological affinities are reconsidered. The study embraces all known species ofProteleia,Sphaerotylus,TrachyteleiaandTylexocladusas well as several species ofPolymastia. A new genus,Koltunia, is established for the Antarctic speciesProteleia burtonibased on the unique shape of distal ornamentations of its giant exotyles and on the absence of a spicule palisade in its cortex, a rare feature among the polymastiids. Three new species ofSphaerotylusare described –S. renoufifrom the British Isles,S. strobilisfrom South Africa andS. tjalfeifrom West Greenland. Transfer of one New Zealand species fromPolymastiatoProteleiaand of one Chilean species fromPolymastiatoSphaerotylusis proposed. The present study provides a background for future integrative phylogenetic analyses based on comprehensive molecular and morphological datasets which should reveal the natural relationships between the polymastiid taxa.


2021 ◽  
Author(s):  
Mónica Núñez-Flores ◽  
Daniel Gomez-Uchida ◽  
Pablo J. López-González

Thouarella Gray, 1870, is one of the most speciose genera among gorgonians of the family Primnoidae (Cnidaria:Octocorallia:Anthozoa), being remarkably diverse in the Antarctic and sub-Antarctic seafloor. However, their diversity in the Southern Ocean is likely underestimated. Phylogenetic analyses of mitochondrial and nuclear DNA markers were integrated with species delimitation approaches as well as morphological colonial and polyps features and skeletal SEM examinations to describe and illustrate three new species within Thouarella, from the Weddell Sea, Southern Ocean: T. amundseni sp. nov., T. dolichoespinosa sp. nov. and T. pseudoislai sp. nov. Our species delimitation results suggest, for the first time, the potential presence of Antarctic and sub-Antarctic cryptic species of primnoids, based on the likely presence of sibling species within T. undulata and T. crenelata. With the three new species here described, the global diversity of Thouarella has increased to 41 species, 15 of which are endemic to the Antarctic and sub-Antarctic waters. Consequently, our results provide new steps for uncovering the shelf benthonic macrofauna’s hidden diversity in the Southern Ocean. Finally, we recommend using an integrative taxonomic framework in this group of organisms and species delimitation approaches because the distinctions between some Thouarella species based only on a superficial examination of their macro- and micromorphological features is, in many cases, limited.



Zootaxa ◽  
2020 ◽  
Vol 4885 (4) ◽  
pp. 579-590
Author(s):  
ALLEN F. SANBORN ◽  
MARTIN H. VILLET

Ingcainyenzane irhiniensis n. gen., n. sp. and Ingcainyenzane nolukhanyoensis n. gen., n. sp. are described from Eastern Cape and Ingcainyenzane umgeniensis n. gen., n. sp. is described from KwaZulu-Natal, South Africa. Notes on its biology of the species and a key to species of the genus are also provided. 



Zootaxa ◽  
2005 ◽  
Vol 1075 (1) ◽  
pp. 55 ◽  
Author(s):  
MARIA GRAZIA BINDA ◽  
GIOVANNI PILATO ◽  
OSCAR LISI

Macrobiotus furciger Murray, has been considered a probable cosmopolitan species. The authors examined specimens named M. furciger from two subantarctic areas from New Zealand, and from South Africa and noted that in the subantarctic area two species are present: M. furciger and a new species here described and named Macrobiotus aradasi sp. nov. The specimens from New Zealand belong to a different species here described and named Macrobiotus divergens sp. nov., and the specimens from South Africa belong to a third new species here described and named Macrobiotus sicheli sp. nov. The authors also hypothesize that the records of Macrobiotus furciger from Andamane Islands and from Europe may refer to different species.



Zootaxa ◽  
2009 ◽  
Vol 2016 (1) ◽  
pp. 1-16 ◽  
Author(s):  
P. MARK O’LOUGHLIN ◽  
M. EUGENIA MANJÓN-CABEZA ◽  
FRANCINA MOYA RUIZ

Three new species of holothuroids from the Antarctic Peninsula and Bellingshausen Sea are described, with O’Loughin & Manjón-Cabeza as authors: dendrochirotids Cucumaria dudexa sp. nov., Psolicrux iuvenilesi sp. nov.; myriotrochid Myriotrochus hesperides sp. nov. Parathyonidium incertum Heding is discussed. Two synonymies for Antarctic holothuroids are formalised: Caespitugo citriformis Gutt is a junior synonym of Thyone scotiae Vaney; Caespitugo diversipes Gutt is a junior synonym of Cucumaria psolidiformis Vaney. Cucumaria armata Vaney is removed from inclusion in the Cucumaria georgiana (Lampert) group, and is a junior synonym of Cucumaria psolidiformis Vaney. A synonymy of Cucumaria aspera Vaney with Psolidium (Cucumaria) coatsi Vaney is rejected; Cucumaria aspera Vaney is referred to the Cucumaria georgiana (Lampert) group. Cucumaria conspicua Vaney is removed from synonymy with Psolidium (Cucumaria) coatsi Vaney, and is a junior synonym of Cucumaria psolidiformis Vaney. Thyone scotiae Vaney is referred to Crucella Gutt. Caespitugo Gutt is a junior synonym of Crucella Gutt. A new genus Cucamba O’Loughlin is erected; Cucumaria psolidiformis Vaney is referred to Cucamba O’Loughlin. A synonymy of Staurocucumis grandis (Vaney) with Staurocucumis turqueti (Vaney) is confirmed. The referral of Pseudocolochirus mollis Ludwig & Heding to Psolidiella Mortensen is confirmed. Lists of contemporary synonymies for Antarctic holothuroid species and generic referrals for Antarctic dendrochirotid species are provided. A table of holothuroid species collected from the Antarctic Peninsula and Bellingshausen Sea by the Spanish BENTART–2003 and BENTART–2006 cruises is provided.



2020 ◽  
Vol 94 (5) ◽  
pp. 799-818
Author(s):  
Maximiliano Jorge Alvarez ◽  
Claudia Julia del Río

AbstractSystematic analysis shows that the Southern Hemisphere bivalve genus Retrotapes includes the Antarctic species R. antarcticus, R. newtoni, and R. robustus and recognizes for the first time the presence of Katelysia represented by K. florentinoi. Two new genera were erected in this study: Marciachlys new genus to include M. inflata new combination, and Adelfia new genus, which includes A. austrolissa new combination and A. omega new species from the Eocene of Antarctica, and the late Eocene Chilean A. arenosa new combination. Eurhomalea carlosi was synonymized with K. florentinoi; Cyclorismina marwicki with R. antarcticus; Gomphina iheringi was considered an indeterminate species; and Cockburnia lunulifera was excluded from the Tapetinae. These systematic assignments are supported by a phylogenetic analysis, which recognizes an Austral clade of Tapetinae, comprising all the genera mentioned above, along with Marcia, Paleomarcia, Atamarcia, and Protapes.UUID: http://zoobank.org/a8c91a9f-99ec-4235-8416-d398771a3eb2



Parasite ◽  
2019 ◽  
Vol 26 ◽  
pp. 67
Author(s):  
Amira Chaabane ◽  
Olivier Verneau ◽  
Louis Du Preez

The polystomes (Monogenea, Polystomatidae) radiated across semi-aquatic tetrapods including all three amphibian orders, freshwater turtles and the hippopotamus. Prior to this study, phylogenetic analyses revealed that the most diverse and widespread genus, Polystoma, was not monophyletic; a lineage comprising four undescribed species from the bladder of Zhangixalus spp. (Rhacophoridae) in Asia occupied a deep phylogenetic position. Regarding vicariance biogeography and molecular dating, the origin of this lineage is correlated with the breakup of Gondwanaland in the Mesozoic period. Based on a Bayesian analysis of four concatenated genes (18S, 28S, COI and 12S) and morphological evidence, one new genus, Indopolystoma n. gen., and three new species, sampled in Japan and China, are described here: Indopolystoma viridi n. sp. from Z. viridis of Japan, Indopolystoma elongatum n. sp. from Z. arboreus of Japan, and Indopolystoma parvum n. sp. from Z. omeimontis of China. Indopolystoma is unique amongst polystome genera infecting anurans by possessing a small haptor relative to the body size, posteriormost marginal hooklet C1 much bigger than hooklets C2–C8 with conspicuous broad blade and guard and a pair of hamuli lacking a deep notch. Eight species of Asian Polystoma, all from rhacophorids, are transferred as Indopolystoma carvirostris (Fan, Li & He, 2008) n. comb., I. hakgalense (Crusz & Ching, 1975) n. comb., I. indicum (Diengdoh & Tandon, 1991) n. comb., I. leucomystax (Zhang & Long, 1987) n. comb., I. mutus (Meng, Song & Ding, 2010) n. comb., I. pingbianensis (Fan, Wang & Li, 2004) n. comb., I. rhacophori (Yamaguti, 1936) n. comb., and I. zuoi (Shen, Wang & Fan, 2013) n. comb.



Zootaxa ◽  
2019 ◽  
Vol 4550 (1) ◽  
pp. 101
Author(s):  
XIAO HAN ◽  
ZHI-QIANG ZHANG

A new genus and three new species of eriophyoid mites of the family Eriophyidae are described and illustrated from various Coprosma species in New Zealand: Calareolata gen. nov., Calareolata coprosmae sp. nov., Cosetacus mamangi sp. nov. and Aculus robustalucidus sp. nov.. A key to the eriophyoid mites associated with Coprosma species in the world is provided. 



2012 ◽  
Vol 43 (2) ◽  
pp. 101-116 ◽  
Author(s):  
Bryan D. Lessard ◽  
David K. Yeates

A new genus of Australian and New Zealand horse fly,AnzomyiaLessard, gen.n., is described, with its type speciesAnzomyia anomala(Mackerras) originally placed in theScaptia(Walker, 1850) subgenusPseudoscione(Lutz, 1918). The new genusAnzomyiais diagnosed and illustrated, along with the description of three new species. A taxonomic key is also provided to include all known species. The three new species areAnzomyia chrysomallisLessard, sp.n. andAnzomyia pegasusLessard, sp.n. from Australia, andAnzomyia herculensisLessard, sp.n. from New Zealand.



1996 ◽  
Vol 10 (4) ◽  
pp. 663 ◽  
Author(s):  
AL Reid

The Peripatopsidae (Onychophora) are analysed by cladistic techniques. In all, 64 taxa, including 41 new Australian species, are included, and 369 character states are studied for these taxa; 36 genera are recognised, 22 of which are new from Australia. New species are described and redescriptions provided for the 13 Australian taxa recognised prior to the present study. A neotype is designated for Euperipatoides leuckartii (Saenger, 1869) and a lectotype is designated for Ooperipatus oviparus (Dendy, 1895). The phylogenetic relationships of the genera and a selection of characters used in the phylogenetic analyses are discussed. The results indicate that the Australian Peripatopsidae may not be monophyletic. The historical biogeography of the Peripatopsidae appears consistent with current geological theories of continental breakup and climate change, with the oldest elements of the fauna confined to Tasmania and south-eastern mainland Australia, regions that retain affinity with taxa from South America, South Africa and New Zealand. The evolution of some important characters is discussed in relation to these events. Ovoviviparity appears to be the ancestral state in the Onychophora, with oviparity arising in at least two Australian lineages. In eastern Australia there has been a dramatic radiation of species, many exhibiting unusual modifications of the head and its papillae.



2008 ◽  
Vol 40 (04) ◽  
pp. 269-282 ◽  
Author(s):  
Sanja SAVIĆ ◽  
Leif TIBELL

Abstract:The new genus Atla forms a well-supported clade in a molecular phylogeny based on the ITS1-5.8S-ITS2 and LSU regions of the nuclear ribosomal DNA. The genus has a crustose thallus, a hamathecium at maturity without hyphal elements except for pseudoparaphyses remaining at the ostiolum, and large, muriform spores. Atla wheldonii was previously referred to Polyblastia. Three new species, A. alpina (the type of the new genus), A. palicei and A. praetermissa, are included in the genus and described here as new to science. They were found on calcareous rocks and soil in Northern Scandinavia; A. alpina also occurs in Central Europe, and A. wheldonii likewise in Central Europe, the Pyrenées and in the British Isles. An identification key to the species and a revision of the genus are also provided.



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