Taxonomy of deep-water tetillid sponges (Porifera, Demospongiae, Spirophorina) from Brazil, with description of three new species and new characters

Zootaxa ◽  
2018 ◽  
Vol 4429 (1) ◽  
pp. 53 ◽  
Author(s):  
JULIO C.C. FERNANDEZ ◽  
PABLO R.D. RODRIGUEZ ◽  
GEORGE G. SANTOS ◽  
ULISSES PINHEIRO ◽  
GUILHERME MURICY
Keyword(s):  
New Species ◽  
Deep Water ◽  
Deep Sea ◽  
Morphological Characters ◽  
Caribbean Region ◽  
Deep Waters ◽  
Se Brazil ◽  
Two New Species ◽  
Three New Species ◽  
The 19Th Century

Since the 19th century the deep-sea sponges from Brazil have been studied and many of them are still being discovered. This study describes five species of tetillid sponges from deep waters of the Brazilian economic exclusive zone; three are new, one is a new occurrence, and another is a known species which is here analyzed. The new species found are: Cinachyrella clavaeformis sp. nov. from the Columbia Seamount (85 m depth), Cinachyrella strongylophora sp. nov. from the Almirante Saldanha Seamount (270 m depth) and Craniella curviclada sp. nov. from slope of the Espírito Santo Basin (500 m depth). The two new species of Cinachyrella possess microacanthoxeas like those found in Cinachyrella kuekenthali (Uliczka 1929); this last species occurs in Caribbean region (4–100 m depth) and in N, NE and SE Brazil (0.2–100 m depth). The type material of Craniella corticata (Boury-Esnault 1973); from NE Brazil (75 m depth), has been found to be a synonym of Cinachyrella kuekenthali. Craniella crustocorticata van Soest 2017; from the Guyana shelf and slope (618–500 m depth), is here reported from the slope of NE and SW Brazil (400–700 m depth). A disorganized choanosomal skeleton (in Cinachyrella clavaeformis sp. nov.), strongyles (in Cinachyrella strongylophora sp. nov.) and a single-layered cortex of tangential oxeas (in Craniella crustocorticata) are new diagnostic characters that have led us to propose slight amendments in the definitions of Cinachyrella Wilson 1925 and Craniella Schmidt 1870. We discuss these and other morphological characters as well as their usefulness in Tetillidae. The diversity, distribution and bathymetry of tetillid sponges from Brazil are discussed and our knowledge of the composition of deep-sea sponges (deeper than 100 m) off Brazil is updated. 

scholarly journals Salticidae (Arachnida, Araneae) of Thailand: new species and records of Epeus Peckham & Peckham, 1886 and Ptocasius Simon, 1885

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9352
Author(s):  
Barbara Maria Patoleta ◽  
Joanna Gardzińska ◽  
Marek Żabka
Keyword(s):  
New Species ◽  
Natural History ◽  
Morphological Characters ◽  
Natural History Museum ◽  
Morphological Data ◽  
History Museum ◽  
Two New Species ◽  
New Material ◽  
Hungarian Natural History Museum ◽  
Three New Species

The study is based on new material from the collections of the Naturalis Biodiversity Centre in Leiden (RNHM) and the Hungarian Natural History Museum (HNHM) and addresses issues in two genera: Epeus Peckham & Peckham, 1886 and Ptocasius Simon, 1885 from Thailand. Both genera are of Asian/Indomalayan origin, the latter with a diversity hotspot in the subtropical valleys of the Himalayas. Based on morphological data, we propose three new species of Epeus (Epeus daiqini sp. nov. (♂♀), Epeus pallidus sp. nov. (♀), Epeus szirakii sp. nov. (♀)) and two new species of Ptacasius (Ptocasius metzneri sp. nov. (♂♀) and Ptocasius sakaerat sp. nov. (♀)). Additionally, we redescribed E. tener (Simon, 1877) and added photographs of morphological characters. The genus Ptocasius is redefined due to the inclusion of 37 species, previously included in Yaginumaella Prószyński, 1979. Relationships and distribution of both genera are discussed in reference to molecular, morphological and distributional data, published by other authors in recent years.

New species and a new record of sea cucumbers from deep waters of the South African temperate region (Echinodermata: Holothuroidea)

Zootaxa ◽  
2009 ◽  
Vol 2013 (1) ◽  
pp. 30-42 ◽  
Author(s):  
AHMED S. THANDAR
Keyword(s):  
New Species ◽  
South African ◽  
Deep Sea ◽  
New Record ◽  
New South ◽  
The South ◽  
Temperate Region ◽  
Sea Cucumbers ◽  
Deep Waters ◽  
Two New Species

Two new species, Pseudostichopus langeae and Psolus griffithsi, and a new South African record, Molpadia musculus Risso, are described from some deep-sea material collected off the South African west and south coasts. This material also contains the well known Pseudocnella insolens (Théel), Ocnus capensis (Théel), Rhopalodinopsis capensis Heding and an indeterminate Thyone sp.

Two new species of Helobdella Blanchard 1896 (Hirudinida: Rhynchobdellida: Glossiphoniidae) from Taiwan, with a checklist of hirudinea fauna of the island

Zootaxa ◽  
2009 ◽  
Vol 2068 (1) ◽  
pp. 27-46 ◽  
Author(s):  
YI-TE LAI ◽  
CHIH-HAN CHANG ◽  
JIUN-HONG CHEN
Keyword(s):  
New Species ◽  
Ecological Impact ◽  
Dna Barcode ◽  
Morphological Characters ◽  
Congeneric Species ◽  
Two New Species ◽  
Three New Species

In this study, two new species of Helobdella leeches, Helobdella octatestisaca n. sp. and Helobdella melananus n. sp., and a newly recorded species, Helobdella europaea, are reported. Morphological characters and DNA barcode analysis were used to identify the three new species. The differences between these species and other morphologically congeneric species were also compared. In addition, the potential ecological impact of these species was discussed and a checklist of the hirudinea fauna in Taiwan, including eight species in Family Glossiphoniidae, four in Hirudinidae, two in Haemopidae, two in Haemadipsidae, and two in Salifidae, was provided.

scholarly journals Two new species of Acanthocotyle Monticelli, 1888 (Monogenea: Acanthocotylidae), parasites of two deep-sea skates (Elasmobranchii: Rajiformes) in the South-East Pacific

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Luis A. Ñacari ◽  
Fabiola A. Sepúlveda ◽  
Ruben Escribano ◽  
Marcelo E. Oliva
Keyword(s):  
New Species ◽  
Deep Sea ◽  
The South ◽  
Metazoan Parasites ◽  
Closely Related Species ◽  
Deep Waters ◽  
East Pacific ◽  
Two New Species ◽  
Morphological Differences ◽  
By Catch

Abstract Background Parasites of deep-sea fishes from the South-East Pacific (SPO) are poorly known. Of c.1030 species of fish found in this area, 100–150 inhabit the deep-sea (deeper than 200 m). Only six articles concerning metazoan parasites of fish from deep-waters of SOP are known, and nine monogenean species have been reported. Currently, ten species are known in Acanthocotyle Monticelli, 1888 (Monogenea) and when stated, all of them are found in shallow waters (10–100 m). Acanthocotyle gurgesiella Ñacari, Sepulveda, Escribano & Oliva, 2018 is the only known species parasitizing deep-sea skates (350–450 m) in the SPO. The aim of this study was the description of two new species of Acanthocotyle from two Rajiformes. Methods In September 2017, we examined specimens of two species of deep-sea skates (Rajiformes), Amblyraja frerichsi (Krefft) and Bathyraja peruana McEachran & Myyake, caught at c.1500 m depth off Tocopilla, northern Chile, as a by-catch of the Patagonian tooth fish Dissostichus eleginoides Smitt fishery. Specimens of Acanthocotyle were collected from the skin of the skates. Morphometric (including multivariate analysis of proportional measurements, standardized by total length), morphological and molecular analyses (LSU rRNA and cox1 genes) were performed in order to identify the collected specimens. Results The three approaches used in this study strongly suggest the presence of two new species in the genus Acanthocotyle: Acanthocotyle imo n. sp. and Acanthocotyle atacamensis n. sp. parasitizing the skin of the thickbody skate Amblyraja frerichsi and the Peruvian skate Bathyraja peruana, respectively. The main morphological differences from the closely related species Acanthocotyle verrilli Goto, 1899 include the number of radial rows of sclerites, the non-discrete vitelline follicles and the number of testes. Conclusions The two species of monogeneans described here are the only recorded parasites from their respective host species in the SPO. Assessing host specificity for members of Acanthocotyle requires clarifying the systematics of Rajiformes.

scholarly journals A hard-earned draw: phylogeny-based revision of the deep-sea shrimp Bentheogennema (Decapoda: Benthesicymidae) transfers two species to other genera and reveals two new species

2019 ◽  
Vol 187 (4) ◽  
pp. 1155-1172 ◽  
Author(s):  
Anastasia A Lunina ◽  
Dmitry N Kulagin ◽  
Alexander L Vereshchaka
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Genus ◽  
Morphological Characters ◽  
The Body ◽  
Phylogenetic Study ◽  
Key To Species ◽  
Molecular Analyses ◽  
Two New Species ◽  
Species Groups

Abstract The phylogenetic study of the deep-sea genus Bentheogennema is based on four molecular markers and 79 morphological characters. All four previously recognized species and two new species of Bentheogennema, representatives of all other genera and species groups of Benthesicymidae, and three outgroups were included in the analyses. We have examined and coded six major groups of morphological characters related to the carapace (three characters), the pleon and the telson (14), the mouthparts (nine), the armature of the pereopods (five), the thelycum (27) and the petasma (21). Results of morphological and molecular analyses were similar. Two species were transferred from Bentheogennema to other genera (for one of them a new genus was erected) and two new species of Bentheogennema were described. Three pelagic genera (Gennadas, Bentheogennema and a new genus) created a robust clade. The divergence of this clade is linked to ‘smoothening’ of the body (reduction of the branchiostegal spine on the carapace, reduction and loss of the dorsolateral spines and the end-piece on the telson) and elaboration of the copulatory structures. We provide amended diagnoses of these three pelagic genera and key to species of Bentheogennema.

Pilargidae (Annelida: Phyllodocida) from coastal and deep waters of the Southwestern Atlantic, with descriptions of two new species

Zootaxa ◽  
2020 ◽  
Vol 4878 (1) ◽  
pp. 56-76
Author(s):  
RANNYELE PASSOS RIBEIRO ◽  
ALINE DA CRUZ BARBOSA ◽  
ROBERTA FREITAS ◽  
JOANA ZANOL ◽  
CHRISTOPHER J. GLASBY ◽  
...  
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Records ◽  
Relative Length ◽  
Dorsal Surface ◽  
Ventral Surface ◽  
Southeastern Brazil ◽  
Southwestern Atlantic ◽  
Deep Waters ◽  
Two New Species

We describe seven species of Pilargidae from the coast and deep sea (300–1400 m deep) of southeastern Brazil, belonging to the genera Ancistrosyllis McIntosh, 1878, Cabira Webster, 1879, Glyphohesione Friedrich, 1950, Hermundura Müller, 1858, and Pilargis Saint-Joseph, 1899. Of those, two are new species (Glyphohesione campensis sp. nov. and Pilargis falconae sp. nov.) and two are new records of Ancistrosyllis for Brazil. Glyphohesione campensis sp. nov. is distinguished from its congeners by fewer neurochaetae, the anteriormost appearance of first notopodial spines, and intermediate relative length of dorsal and ventral cirri. Pilargis falconae sp. nov. is diagnosed by the presence of parapodial glands from the first chaetiger on the dorsal surface and from the sixth chaetiger on the ventral surface; and neurochaetae smooth capillaries and limbates with unidentate tips. Keys to pilargid species reported from, or likely to occur in, Brazilian waters are provided.

Two new species of Fauveliopsidae (Annelida, Sedentaria) from submarine caves and deep sea, Japan

Zootaxa ◽  
2020 ◽  
Vol 4878 (2) ◽  
pp. 385-391
Author(s):  
NAOTO JIMI ◽  
SHINTA FUJIMOTO ◽  
AKITO OGAWA ◽  
YOSHIHISA FUJITA ◽  
YUYA SHIGENOBU ◽  
...  
Keyword(s):  
New Species ◽  
Deep Water ◽  
Deep Sea ◽  
The Other ◽  
Two New Species ◽  
Japanese Waters ◽  
Submarine Caves ◽  
I 32

Two new species of fauveliopsid annelids, Fauveliopsis antri sp. nov. and Laubieriopsis soyoae sp. nov., are described based on specimens collected from Japanese waters. Fauveliopsis antri sp. nov. inhabits submarine caves and can be discriminated from the other congeners by the following features: i) 32 chaetigers, ii) chaetigers 1–3 with stout hooks, iii) minute body (about 1 mm in length), iv) all parapodia with same number of chaetae (2 notochaetae; 2 neurochaetae), and v) presence of dorsal and ventral papillae. Laubieriopsis soyoae sp. nov. inhabits deep water sediments and can be distinguished from the other congeners by: i) 24 chaetigers, ii) chaetigers 1–3 without annulations, and iii) acicular chaetae with tips entire, without denticles.

scholarly journals The Deep-Sea Genus Coronarctus (Tardigrada, Arthrotardigrada) in Brazil, South-Western Atlantic Ocean, with the Description of Three New Species

Diversity ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 63 ◽  
Author(s):  
Edivaldo Gomes-Júnior ◽  
Érika Santos ◽  
Clélia M.C. da Rocha ◽  
Paulo J. P. Santos ◽  
Paulo Fontoura
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Continental Slope ◽  
Deep Sea ◽  
Morphological Characters ◽  
The Other ◽  
Western Atlantic ◽  
Western Atlantic Ocean ◽  
Three New Species ◽  
Genus Shape

Three new marine tardigrade species from the deep-sea genus Coronarctus are described from the South-Western Atlantic Ocean: Coronarctus dissimilis sp. nov., C. neptunus sp. nov., and C. yurupari sp. nov. These, and C. laubieri Renaud-Mornant, 1987, are the first records of deep-sea tardigrades from this marine region. Specimens of those species were collected from two localities of the Brazilian continental slope (Potiguar and Campos basins) at depths comprised between 150 and 3000 m. Specimens of the three new species have short cephalic appendages and heteromorphic claws, belonging to the, here designated, C. tenellus group of species. Each of the new species can be distinguished from all the other species of the group by their peculiar-shaped secondary clavae and claws. The most relevant morphological characters used for the taxonomy of the genus: shape of cephalic cirri, shape of secondary-clavae, size and number of accessory spines on claws, and shape of seminal receptacles, are discussed and an identification key to all ten known Coronarctus species is provided.

scholarly journals Two new genera and nine new species of hydroids (Cnidaria: Hydrozoa) from off New Caledonia

2015 ◽  
Author(s):  
Horia R. Galea
Keyword(s):  
New Species ◽  
Deep Water ◽  
Deep Sea ◽  
New Caledonia ◽  
New Genera ◽  
Additional Group ◽  
The Family ◽  
Three New Species

Two new genera and nine new species of hydroids are described based on deep-water material collected from off New Caledonia during various expeditions of the French Tropical Deep-Sea Benthos program. Caledoniana gen. nov., provisionally included in the family Sertulariidae Lamouroux, 1812, presently comprises three new species, viz. C. alata sp. nov., C. decussata sp. nov., and C. microgona sp. nov., while an additional group of three new species, is accommodated in the new sertulariid genus Solenoscyphus gen. nov.: S. candelabrum sp. nov., S. decidualis sp. nov., and S. striatus sp. nov. Furthermore, three new species of Hincksella Billard, 1918 (family Syntheciidae Marktanner-Turneretscher, 1890) are described, namely H. cornuta sp. nov., H. neocaledonica sp. nov., and H. similis sp. nov.

Species of Odontosyllis Claparède, 1863 (Annelida: Polychaeta: Syllidae)

Zootaxa ◽  
2013 ◽  
Vol 3609 (2) ◽  
pp. 142-162 ◽  
Author(s):  
MARCELO VERONESI FUKUDA ◽  
JOÃO MIGUEL DE MATOS NOGUEIRA ◽  
KARLA PARESQUE ◽  
GUILLERMO SAN MARTÍN
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Sao Paulo ◽  
Similar Species ◽  
Rocky Shores ◽  
São Paulo ◽  
Current State ◽  
Se Brazil ◽  
Two New Species

Two new species of Odontosyllis were found in samples collected mainly on rocky shores off the states of São Paulo (SE Brazil) and Paraíba (NE Brazil). Odontosyllis aracaensis sp. nov., and O. guarauensis sp. nov., are herein described and compared to their most similar congeners. A key for the species found in Brazil is provided, and relevant morphological characters of similar species of the genus, based on falcigers morphology, are summarized and compared with those of the newly described species. The current state of knowledge on the genus is briefly discussed.

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