Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico, with the description of the first Mexican stygobiont sponges

Zootaxa ◽  
2020 ◽  
Vol 4803 (1) ◽  
pp. 125-151
Author(s):  
PATRICIA GÓMEZ ◽  
FERNANDO CALDERÓN-GUTIÉRREZ
Keyword(s):  
Species Richness ◽  
New Species ◽  
Deep Sea ◽  
Ecological Study ◽  
The Other ◽  
Conservation Programs ◽  
Conical Shape ◽  
Dark Zone ◽  
Cozumel Island ◽  
Anchialine Caves

Porifera has been relatively well studied from underwater caves worldwide. However, sponges in Mexico are only known from two anchialine caves: La Quebrada and El Aerolito, both in Cozumel Island. An ecological study found that sponges have the second highest species richness and density in La Quebrada. The aim of the present work is to describe the sponge biodiversity inhabiting the dark zone of La Quebrada anchialine cave. A total of ten species were found and are described herein, six are new species to science vis. Calyx maya n. sp. a thinly branched sponge; Haliclona (Reniera) stygobia n. sp. globe-shaped with the thinnest diameter of oxeas in its group; Haliclona (Halichoclona) chankanaabiis n. sp. tubular habit with the smallest oxeas in its group; Neosiphonia microtriaeneae n. sp. characterized by very small dichotriaenes; Svenzea germanyanezi n. sp. a lone conical shape; and Diplastrella cozumella n. sp. for its tri to multilobed tylostyles. The other four species are previously known from open reefs or deep-sea: Discodermia adhaerens, Siphonidium ramosum, Cinachyrella kuekenthali, and Plakinastrella onkodes. This is the only inventory of Porifera in Mexican caves up to now, thus the species here described are the first stygobiont sponges from Mexico with an endemism rate of Porifera in this anchialine cave of 60%. Conservation programs are needed to preserve this unique and special ecosystem. 

scholarly journals Ashinkailepas kermadecensis, a new species of deep-sea scalpelliform barnacle (Thoracica: Eolepadidae) from the Kermadec Islands, southwest Pacific

Zootaxa ◽  
2009 ◽  
Vol 2021 (1) ◽  
pp. 57-65 ◽  
Author(s):  
JOHN S. BUCKERIDGE
Keyword(s):  
New Species ◽  
New Zealand ◽  
Deep Sea ◽  
Cold Water ◽  
The Other ◽  
Cold Seeps ◽  
Central Japan ◽  
Southwest Pacific ◽  
The North ◽  
A New Species

A new deep-sea stalked barnacle, Ashinkailepas kermadecensis sp. nov. has been recovered from a cold-water seep at depths of 1165 metres in the vicinity of the Kermadec Ridge to the northeast of the North Island, New Zealand. There are now two species of Ashinkailepas—the other, Ashinkailepas seepiophila Yamaguchi, Newman & Hashimoto, 2004, occurs in deep, cold seeps off central Japan. As there are two species within Ashinkailepas, formal diagnoses are provided for both taxa.

New subgenus and new species of marine benthic ostracods of genus Doloria (Ostracoda; Myodocopina) from the Southern Ocean

Zootaxa ◽  
2012 ◽  
Vol 3356 (1) ◽  
pp. 1 ◽  
Author(s):  
VLADIMIR G. CHAVTUR ◽  
SIMONE N. BRANDÃO ◽  
ALEXANDER G. BASHMANOV
Keyword(s):  
New Species ◽  
Southern Ocean ◽  
Deep Sea ◽  
Novel Species ◽  
The Other ◽  
The Novel ◽  
Atlantic Sector ◽  
New Subgenus ◽  
Fifth Limb ◽  
Water Depths

The project ANDEEP was designed to fill gaps in the knowledge of the biodiversity of the Southern Ocean deep sea. Threeoceanographic cruises (ANDEEP I, II and III) were undertaken in 2002 and 2005 in the Atlantic Sector of the SouthernOcean. Hundreds of samples were collected from 40 stations with water depths ranging from 748 to 6,348 m. Investiga-tions were carried out on a broad range of taxa, including bacteria, meio-, macroand megafauna. Approximately 5000ostracods were collected, which included 29 specimens of Doloria (Dolorietta) subgen. nov.The subdivision of the genus Doloria Skogsberg, 1920 into two subgenera, Doloria (Doloria) and the novel subgenusDoloria (Dolorietta), is based on differences in the structures of the fifth limb, the armature of the sensory bristle on the5th segment of the antennula, and the number of bristles on the 4th endite of the sixth limb. Four new species in the newsubgenus were identified from the ANDEEP samples. The new subgenus and the four novel species are described andillustrated. Two of these new species are named Doloria (Dolorietta) antarctica sp. nov. and Doloria (Dolorietta) sextafiliformis sp. nov., but the other two species are left in open nomenclature (i.e. Doloria (Dolorietta) sp. nov. 1 and Doloria(Dolorietta) sp. nov. 2) because only juveniles were found in our material. Keys to the subgenera and species of Doloria are provided.

New cumacean species (Crustacea: Peracarida) from Salomon Islands

Zootaxa ◽  
2008 ◽  
Vol 1743 (1) ◽  
pp. 17
Author(s):  
JORDI CORBERA
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Dorsal View ◽  
The Other ◽  
Lateral Carina ◽  
The Family ◽  
The Moment

Four new species of Cumacea are described from deep-sea samples collected around Salomon Islands during the French campaign SALOMON I. Bathylamprops pagesi sp. nov. and Bathylamprops caperatus sp. nov. belonging to the family Lampropidae differ from the all currently known species by the oblique lateral carina running from anterolateral angle backwards. The nannastacid Campylaspis alisae sp. nov. can be identified by the shape of the carapace carinae, especially in dorsal view. The diastylid Oxyurostylis? salomonensis sp. nov. due to the lost of the telson tip, is difficult to assign either to the genus Diastylis Say, 1818 or to the genus Oxyurostylis Calman, 1912. At the moment, it is included provisionally to the genus Oxyurostylis and it differs from the other species in the genus by its flattened eyelobe and the higher number of setae on telson.

Enchytraeidae (Oligochaeta) from taiga and tundra habitats of northeastern U.S.S.R.

1982 ◽  
Vol 60 (11) ◽  
pp. 2594-2609 ◽  
Author(s):  
Stephen R. Piper ◽  
Stephen F. MacLean ◽  
Bent Christensen
Keyword(s):  
Species Richness ◽  
New Species ◽  
Type Species ◽  
Unique Feature ◽  
The Other ◽  
New Siberian Islands ◽  
Taiga Forest ◽  
Generic Position ◽  
The Rich

The terrestrial Enchytraeidae were studied at two sites in northeastern U.S.S.R., one in taiga forest (Magadan) and one in tundra (Chaun Bay). Twenty-two taxa are reported, 13 at Magadan and 17 at Chaun Bay. Following review of the original descriptions and specimens, we designate Mesenchytraeus primaeuus Eisen, 1878 as type species for the genus. Five new species of Mesenchytraeus are described: M. diverticulatus from Magadan and M. chaunus, M. tundrus, M. kontrimavichusi, and M. svetae from Chaun Bay. Mesenchytraeus diverticulatus has an esophageal expansion and intestinal diverticula that are unique within this genus. Another new species with complex nephridia in segment II is described, but left in uncertain generic position. Henlea diverticulata Cejka, 1912, known previously only from the New Siberian Islands, occurred at Chaun Bay. Bryodrilus arctica (Bell, 1962), known only from St. Lawrence Island, was found at both Magadan and Chaun Bay. The other species are circumboreal in distribution. The Enchytraeid fauna of northeastern U.S.S.R. is similar to that of arctic and subarctic Alaska. The rich complement of species of Mesenchytraeus is a unique feature of the Beringeal region. Both abundance and species richness were higher in tundra than in taiga forest.

scholarly journals Two new tanaidaceans (Crustacea: Peracarida) from Portuguese submarine canyons (NE Atlantic, West Iberian Margin)

2021 ◽  
Vol 740 ◽  
Author(s):  
Álvaro García-Herrero ◽  
Patricia Esquete ◽  
Marina R. Cunha
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Genus ◽  
The Other ◽  
Ne Atlantic ◽  
Submarine Canyons ◽  
The Family ◽  
Two New Species ◽  
Water Depths ◽  
Iberian Margin

The Tanaidacea are ubiquitous and amongst the most abundant taxa in the deep sea. However, their diversity in submarine canyons remains largely unknown. Here, two new species and a new genus of Paratanaoidea are described. Paranarthrura cousteaui sp. nov. is distinguished by the combination of the following characters: post-cheliped sclerites not fused, presence of one seta in the maxilliped endite, one long midventral seta in cheliped, one penicillate seta in the basis of pereopods 4–6, uropod endopod bi-articulated and uropod exopod shorter than endopod article 1. This species was found at the upper reaches of three Portuguese canyons, Cascais, Setúbal and Nazaré Canyons, and the adjacent open slope, between 897 and 1001 m water depths. Tirana vallis gen. et sp. nov. presents a combination of the characters that define the other two genera of Paranarthrurellidae, Paranarthrurella and Armatognathia, but also unique characters within the family: the antenna, cheliped and uropod are more elongate than the rest of the species; the pereopods 4–6 carpus spines reach at least half of the length of the propodus and the propodus of pereopods 4–6 have ramified subdistal spines. This species was found at the middle reaches of Setúbal Canyon (3214–3219 m water depth).

scholarly journals A new species of Long-eared Brown Bat of the genus Histiotus (Chiroptera) and the revalidation of Histiotus colombiae

Caldasia ◽  
2021 ◽  
Vol 43 (2) ◽  
pp. 221-234 ◽  
Author(s):  
Miguel E. Rodríguez-Posada ◽  
Darwin M. Morales-Martínez ◽  
Héctor E. Ramírez-Chaves ◽  
Daniela Martínez-Medina ◽  
Camilo A. Calderón-Acevedo
Keyword(s):  
Species Richness ◽  
New Species ◽  
The Other ◽  
Evolutionary Relationships ◽  
South American ◽  
Undescribed Species ◽  
Cordillera Central ◽  
Bolivian Andes ◽  
Mammal Fauna ◽  
A New Species

The South American bats of the genus Histiotus comprise between four and eight species, but their taxonomy has been controversial and the limits between species and their distribution are not well understood. In Colombia, Histiotus humboldti and H. montanus colombiae have been recorded, but undescribed species has been suggested. We evaluated the species richness and distribution of Colombian Histiotus using morphological, molecular, and acoustic traits. Our results evidence three species in Colombia, the two previously recorded taxa and a new species from the Cordillera Central of Colombia and northern Ecuador that we describe here. We also revalidated H. colombiae as a full species. H. humboldti is widely distributed in the Colombian and Ecuadorean Andes and can be sympatric with the other two species. H. colombiae is restricted to the Colombian Cordillera Oriental. Finally, we highlight the potential hidden diversity within Histiotus in the Peruvian and Bolivian Andes, the need to resolve the evolutionary relationships of the genus, and its implications to the understanding of the processes that have structured the Andean mammal fauna.

scholarly journals Editorial: Bringing light into deep-sea biodiversity

Zootaxa ◽  
2008 ◽  
Vol 1866 (1) ◽  
pp. 5 ◽  
Author(s):  
PEDRO MARTÍNEZ ARBIZU ◽  
SASKIA BRIX
Keyword(s):  
Species Richness ◽  
New Species ◽  
Deep Sea ◽  
Marine Ecosystems ◽  
The Real ◽  
Marine Life ◽  
Year 2000 ◽  
First Time ◽  
International Initiative

Despite the fact that oceans cover over 70% of the earth’s surface, only about one third of all currently known species have been described from marine ecosystems (Reaka-Kudla 1997, Groombridge & Jenkins 2000, Grassle 2001, Boltovskoy et al. 2005). We believe that this represents an underestimation of the real biodiversity in the oceans (Bouchet 2006). Since the year 2000, the “Census of Marine Life” (CoML, www.coml.org), an international initiative involving more than 2000 researchers from 80 nations, is putting a huge effort into describing and understanding patterns of species richness and distribution in all ocean realms. The deep sea is one of the largest ecosystems on earth and probably harbours a substantial amount of biodiversity. The fraction of new species to be found in deep-sea areas visited for the first time ranges from 50 to 100 % (Wilson 1980, Poore et al. 1994, Park 2000, Brandt et al. 2004, Brandt et al. 2007a,b), with most of them only being represented by single individuals in the samples (Rose et al. 2005, Brandt et al 2007a,b,). This fact, together with the logistic impediments of sampling in abyssal plains, constrains our knowledge of the life in the hidden depths of the ocean.

Two new species of deep-sea sponges (Porifera, Demospongiae) from submarine canyons of the Sardinian continental margin (western Mediterranean Sea)

Zootaxa ◽  
2019 ◽  
Vol 4688 (3) ◽  
pp. 407-419 ◽  
Author(s):  
FRINE CARDONE ◽  
MAURIZIO PANSINI ◽  
GIUSEPPE CORRIERO ◽  
MARCO BERTOLINO
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Cold Water ◽  
Western Mediterranean ◽  
The Other ◽  
Central Mediterranean ◽  
Western Mediterranean Sea ◽  
North Eastern ◽  
Two New Species ◽  
Water Coral

Here we describe two new species of deep-sea sponges collected during the exploration of Cold-Water Coral (CWC) banks discovered in the Nora and Coda Cavallo canyons (north-eastern and south coast of Sardinia respectively). Poecillastra tavianii n. sp. differs from the other congeneric species mainly for the dicho- and mesodichotriaenes, never observed in the genus, and the abundance and variety of spirasters. Hymedesmia (Hymedesmia) quadridentata n. sp. is characterized by the presence of two types of chelae. In particular, the unguiferate chelae (round shaft and four teeth at both extremities) represent a peculiar character of the species. Our contribution increases the number of sponge fauna associated to the best known Central Mediterranean CWC habitats to 98 improving the still scant knowledge on the biodiversity of the Mediterranean CWC habitats. 

scholarly journals Kliopsyllus schminkei sp. n. (Copepoda, Harpacticoida, Paramesochridae) — a new copepod from the southeast Atlantic deep sea (Angola Basin)

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 313-326 ◽  
Author(s):  
GRITTA VEIT-KÖHLER ◽  
JAN DREWES
Keyword(s):  
New Species ◽  
Body Size ◽  
Deep Sea ◽  
The Other ◽  
Whole Body ◽  
Apical Pore ◽  
A New Species

A new species of Kliopsyllus (Paramesochridae) has been collected with a multicorer from the abyssal Angola Basin in 2000 (on the DIVA-1 cruise, RV Meteor 48/1). Kliopsyllus schminkei sp. n. is the second most abundant Kliopsyllus- species in the Angola Basin and raises the number of valid members of the genus to 33. The new species is placed in the genus Kliopsyllus because of its typical segmentation and the setation of the swimming legs. K. schminkei sp. n. is unique within the genus and can be distinguished from the other species by a large apical pore on the P5 baseoendopodal lobes of the male, a length:width ratio of the furcal rami of 9 to 10:1 in both sexes, and an exceptional ratio of the length of the furcal rami to the whole body size of one fourth in the female and one fifth in the male. The new species is one of the four deep-sea Kliopsyllus-species described until now.

scholarly journals A New Genus and Two New Species of Subterranean Amphipod Crustaceans (Hadziidae) from the Bahamas and Turks and Caicos Islands

1985 ◽  
Vol 55 (2) ◽  
pp. 283-294 ◽  
Author(s):  
John R. Holsinger ◽  
Jill Yager
Keyword(s):  
New Species ◽  
New Genus ◽  
The Other ◽  
Caribbean Region ◽  
The Bahamas ◽  
Turks And Caicos Islands ◽  
Two New Species ◽  
Anchialine Caves

Bahadzia, new genus, and two new species of amphipod crustaceans are described from anchialine caves in the Bahamas and Turks and Caicos Islands. One of the species is recorded from three caves on Grand Bahama Island and one cave on Great Abaco Island, whereas the other species is recorded from two caves on the island of Providenciales. The new genus is apparently more closely related to Metaniphargus and Saliweckelia than other hadziid genera in the peri-Caribbean region, but it also shares some important characters with Mayaweckelia.

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