Two new Auletta Schmidt, 1870 (Axinellidae; Demospongiae; Porifera) from Brazil

Zootaxa ◽  
2017 ◽  
Vol 4273 (1) ◽  
pp. 121
Author(s):  
THAYNÃ CAVALCANTI ◽  
RADHARANNE RECINOS ◽  
ULISSES PINHEIRO
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
The Other ◽  
External Morphology ◽  
Northeastern Brazil ◽  
Valid Species ◽  
Brazilian Coast ◽  
Tubular Shape ◽  
Cavernous Body

The genus Auletta Schmidt, 1970 comprises 14 valid species, with six known from the Atlantic Ocean. The genus was previously recorded for the Brazilian coast only in 1967 from surveys in Pernambuco State. The present paper describes two new Auletta from Northeastern Brazil. Auletta akaroa sp. nov. is from Alagoas State and it has a stalked tubular shape and small sinuous styles and strongyles. Auletta laboreli sp. nov. was found in Pernambuco State and it is a sponge with a cylindrical and cavernous body composed of styles with blunt and telescopic tips and sinuous strongyles. Both new species were compared with the other valid species of Auletta. The spicule complement and external morphology of the new species are discussed. 

Taxonomic and morphological revision of butterfly rays of the Gymnura micrura (Bloch & Schneider 1801) species complex, with the description of two new species (Myliobatiformes: Gymnuridae)

Zootaxa ◽  
2017 ◽  
Vol 4332 (1) ◽  
pp. 1 ◽  
Author(s):  
LEANDRO YOKOTA ◽  
MARCELO RODRIGUES DE CARVALHO
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Other ◽  
External Morphology ◽  
Valid Species ◽  
Lateral Line System ◽  
Western Atlantic ◽  
Line System ◽  
Lower Lip ◽  
Two New Species

An extensive taxonomic revision of Gymnura micrura based on external and internal morphology, and considering specimens from its entire geographical distribution in the Atlantic Ocean, is presented. Gymnura micrura is redescribed and a neotype is designated; its distributional range is limited to the Southwestern Atlantic. Two new species of butterfly rays are described: Gymnura lessae, sp. nov., occurring in the North and Central Western Atlantic, and Gymnura sereti, sp. nov., found in the Eastern Central Atlantic. The three species are morphologically very similar (with G. micrura most similar to G. lessae, sp. nov.) and cannot be distinguished based on the primary diagnostic characters typically utilized for butterfly rays. The dorsal color, smaller size and eventual presence of a dorsal fin in some males may be helpful to distinguish G. micrura, whereas the size and morphology of the clasper are the main external characters separating G. sereti, sp. nov., from the other two species, although the shape of disc (especially among adult males) and contour of the lower lip are also helpful. Despite the skeleton being conservative among the species, we found consistent variations that support the validity of the new species described. Due to similarity in external morphology these internal characters were fundamental to discriminate the new species. The scapulocoracoid was an important diagnostic skeletal structure, exhibiting a series of variations that separated the three species. Variations in the synarcual, outline of the dorsal cranial fontanelle, number and shape of mesopterygia, and small differences in the mandibular arches and pelvic girdle were useful to diagnose G. sereti, sp. nov. The contour of the hyomandibula was an important diagnostic character distinguishing G. lessae, sp. nov., from the other two species. Meristic data were also useful, with G. sereti, sp. nov., presenting a lower number of radials in the second element of the mesopterygium and a higher number of diplospondylous vertebrae. In contrast, G. lessae, sp. nov., presented a higher number of pectoral-fin radials. Subtle, but consistent differences, were also found in the design of the ventral lateral-line system. A Canonical Discriminant Analysis provides strong statistical support for the validity of the new species, significantly distinguishing the three species groupings (p < 0.00001). External morphology, ventral lateral-line system and skeleton are described and illustrated for all three valid species. 

Aplysina Nardo (Porifera, Verongida, Aplysinidae) from the Brazilian coast with description of eight new species

Zootaxa ◽  
2007 ◽  
Vol 1609 (1) ◽  
pp. 1-51 ◽  
Author(s):  
ULISSES DOS S. PINHEIRO ◽  
EDUARDO HAJDU ◽  
MÁRCIO R. CUSTÓDIO
Keyword(s):  
New Species ◽  
Individual Variation ◽  
Morphological Study ◽  
Identification Key ◽  
The Other ◽  
External Morphology ◽  
Brazilian Coast ◽  
Tentative Identification ◽  
Other Hand

A revision of Brazilian Aplysina was conducted based on morphological study of species alive as well as preserved in the collections of Museu Nacional. In total, 190 specimens were studied in the lab. Identification was achieved by analysis of the external morphology, in combination with skeletal architecture and its components. Our analyses revealed marked within individual variation for most species in characters associated to the spongin fibres, suggesting a low diagnostic strength for this set of characters in Aplysina. External morphology, on the other hand, permitted clearcut diagnoses for most species. Fifteen species were identified and are fully described below. Eight of these are new to science. A neotype for A. fulva is proposed here. The amended list of Aplysina species for the Brazilian coast is: A. alcicornis sp.n., A. caissara, A. cauliformis, A. cristagallus sp.n, A. fistularis, A. fulva, A. insularis, A. lacunosa, A. lactuca sp.n., A. lingua sp.n., A. muricyana sp.n., A. orthoreticulata sp.n., A. pergamentacea, A. pseudolacunosa sp.n. and A. solangeae sp.n. A tentative identification key for these species is provided.

Description of three new species of Ampelisca (Crustacea: Amphipoda: Ampeliscidae) from Southwestern Atlantic, with a key of the genus for Brazilian species

Zootaxa ◽  
2007 ◽  
Vol 1626 (1) ◽  
pp. 25-37 ◽  
Author(s):  
MARIA TERESA VALÉRIO-BERARDO
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
Continental Shelf ◽  
Benthic Communities ◽  
Brazilian Coast ◽  
Southwestern Atlantic ◽  
Soft Bottom ◽  
Brazilian Species ◽  
Southwestern Atlantic Ocean ◽  
Three New Species

Ampelisca species are inhabitant of soft bottom marine benthic communities of tropical to cold – temperate zones. Prior to this paper, 11 species of the genus were recognized from Brazilian coast. Three new species of Ampelisca are herein described: Ampelisca longipropoda, Ampelisca meridionalis and Ampelisca youngi. The specimens were dredged from the continental shelf of Southwestern Atlantic Ocean between the latitudes 22°06’S and 34°32’S. A key to the Ampelisca species of the Brazilian coast is provided.

A review of the records of Pachycheles rugimanus A. Milne-Edwards, 1880 (Crustacea: Decapoda: Anomura: Porcellanidae) from Brazil, with the description of a new species

Zootaxa ◽  
2019 ◽  
Vol 4568 (1) ◽  
pp. 185 ◽  
Author(s):  
LUCIANE AUGUSTO DE AZEVEDO FERREIRA ◽  
MARCOS TAVARES
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
The Other ◽  
Eastern Pacific ◽  
Brazilian Coast ◽  
Galapagos Island ◽  
Western Atlantic ◽  
The Third ◽  
Cocos Island ◽  
A New Species

All previous records of Pachycheles rugimanus A. Milne-Edwards, 1880, from the Brazilian coast are reviewed and prove to represent a new species, P. coelhoi sp. nov. (from Amapá, northern Brazilian coast), and P. ackleianus A. Milne-Edwards, 1880, a species already known from Brazil (from Pará to Rio de Janeiro). The new species is described and illustrated, and compared to its most similar congeners: P. rugimanus and P. ackleianus from the western Atlantic, and P. velerae Haig, 1960, from the eastern Pacific (Galapagos Island and Cocos Island). Pachycheles coelhoi sp. nov. is distinguishable from the other three species by a suite of morphological characters, which include the ornamentation of the carapace and chelipeds, and the shape of the third thoracic sternite. All previous records of P. rugimanus from Brazil are considered invalid. 

Three new species of copepods (Copepoda: Calanoida and Cyclopoida) from anchialine habitats in Indonesia

Zootaxa ◽  
2012 ◽  
Vol 3150 (1) ◽  
pp. 36 ◽  
Author(s):  
GEOFF A. BOXSHALL ◽  
DAMIÀ JAUME
Keyword(s):  
New Species ◽  
The Philippines ◽  
The Other ◽  
Valid Species ◽  
Fine Scale ◽  
The Family ◽  
Two New Species ◽  
Three New Species ◽  
The Village ◽  
A New Species

Three new species of copepod crustaceans are described from material collected from anchialine and brackish habitats inand around the village of Walengkabola on the coast of Muna Island, to the southeast of Sulawesi. A new species of cy-clopoid, Paracyclopina sacklerae n. sp., was described from material collected from the tidal inflow entering into the bot-tom of sinkholes a few metres inland from the shoreline. Detailed comparisons are made with Paracyclopina orientalis(Lindberg, 1941), n. comb., a closely related congener here transferred from its original genus Cyclopetta Sars, 1913. Theassignment of Paracyclopina Smirnov, 1935 to the family Cyclopettidae is followed here despite uncertainty over the va-lidity of some of the families created by the break up of the former Cyclopinidae. Two new species of Boholina Fosshagen& Iliffe, 1989 are described, based on material from the same sinkholes and from caves located up to 700m inland fromthe coast and exhibiting further reduced salinity down to 1.8 ppt. One species, B. parapurgata n. sp., is very closely relatedto B. purgata Fosshagen & Iliffe, 1989 from Bohol island in the Philippines, the other B. munaensis n. sp., is very closelyrelated to B. crassicephala Fosshagen & Iliffe, 1989 also from Bohol island, but a number of fine scale differences in the leg 5 of both sexes are recognised in each case. Keys to valid species of both genera are provided.

scholarly journals A new species of Tetragonopterus Cuvier, 1816 (Characiformes: Characidae: Tetragonopterinae) from the rio Jari, Amapá, northern Brazil

2011 ◽  
Vol 9 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Bruno F Melo ◽  
Ricardo C Benine ◽  
Tatiane C Mariguela ◽  
Claudio Oliveira
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
The Other ◽  
New Combination ◽  
Valid Species ◽  
Caudal Peduncle ◽  
C Subunit ◽  
Northern Brazil ◽  
Square Spot ◽  
A New Species

A new species of Tetragonopterus is described from the rio Jari, a tributary to the left margin of rio Amazonas, at the border between Amapá and Pará States, northern Brazil. It is morphologically diagnosed from the other species of the genus (T. argenteus, T. chalceus, and T. rarus new combination) by the lozenge-shaped spot on the caudal peduncle vs. rounded to square spot on the other species. Partial sequences of the mitochondrial gene Cytochrome Oxidase C subunit I, from representatives of all valid species of Tetragonopterus, including this new species, were analyzed. The obtained results revealed a significant genetic distance between the new species and its congeners. A discussion on the new combination, Tetragonopterus rarus, is also provided.

Sigmaxinella cearense sp. nov. from sandstone reefs off Fortaleza (Ceara State, Brazil) (Desmacellidae, Mycalina, Poecilosclerida, Demospongiae)

Zootaxa ◽  
2006 ◽  
Vol 1369 (1) ◽  
pp. 43 ◽  
Author(s):  
SULA SALANI ◽  
TITO M.D.C. LOTUFO ◽  
EDUARDO HAJDU
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
First Record ◽  
South Atlantic ◽  
The Other ◽  
Single Specimen ◽  
The South ◽  
Australian Species ◽  
Mean Width ◽  
Single Category

Sigmaxinella cearense sp. nov. is described here on the basis of a single specimen collected in 2004 at Parque Estadual Marinho da Pedra da Risca do Meio, off Fortaleza, Ceará, Brazil. This is the first record of Sigmaxinella for the Atlantic Ocean. The new species differs from the other eleven Sigmaxinella species by the absence of raphides/microxea, and is the only species with a single category of styles as megascleres (mean length 435µm, mean width 12µm), and sigmas (mean length 21µm). The new species appears to be closer to Australian species of Sigmaxinella, on the basis of overall spicule morphology (mainly dimensions and categories of megascleres). This could be suggestive of a transpacific track for the colonization of the South Atlantic, instead of the shorter Agulhas track.Key words: Sigmaxinella, taxonomy, Parque Estadual da Pedra da Risca do Meio, sponge, new species, sandstone reef, Brazil

Redescription of Lophoura gracilis (Wilson, 1919) (Copepoda: Sphyriidae) from Synaphobranchus kaupi in the Northwest Atlantic Ocean

1985 ◽  
Vol 63 (12) ◽  
pp. 2940-2943 ◽  
Author(s):  
William E. Hogans ◽  
Michael J. Dadswell
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
Original Description ◽  
The Other ◽  
Valid Species ◽  
Scotian Shelf ◽  
Northwest Atlantic

The mesoparasitic copepod Lophoura gracilis is redescribed from eight female specimens recovered from synaphobranchid eels captured at 600 m on the Scotian Shelf. This is the first documentation of L. gracilis since the original description. We conclude that L. gracilis is a valid species distinct from the other North Atlantic representatives of this genus.

Diversity of Indo-Australian Plakortis (Demospongiae: Plakinidae), with description of four new species

2010 ◽  
Vol 91 (2) ◽  
pp. 303-319 ◽  
Author(s):  
Guilherme Muricy
Keyword(s):  
New Species ◽  
External Morphology ◽  
Valid Species ◽  
Size Classes ◽  
Australian Species

A collection of 32 specimens of the genus Plakortis (Demospongiae: Plakinidae) from Australia and the Indo-Pacific is here examined. Six species are described, four of which are new to science. Plakortis lita has microrhabds, an irregular tangential ectosomal reticulation, a confused choanosomal skeleton and irregular diods and triods. Plakortis quasiamphiaster has quasiamphiasters (spined diods and triods), spheres and a skeleton with a distinct subectosomal region. Plakortis communis sp. nov. has diods and a tangential ectosomal reticulation with circular meshes; triods and spheres may be present or absent. Plakortis bergquistae sp. nov. has diods in two size-classes, the larger one up to 330–356 µm long, and large triods (actines up to 75–121 µm long). Plakortis fromontae sp. nov. has large diods (up to 220 µm long), rare triods and a double ectosomal reticulation. Plakortis hooperi sp. nov. has diods, triods, microrhabds and spheres, with a confused ectosomal skeleton, a thinly encrusting shape and cream colour. Detailed descriptions of external morphology, skeletal arrangement of the ectosome and spicules in SEM are essential for the taxonomy of Plakortis. The number of valid species in the genus is raised from 15 to 19. A key to Indo-Australian species of Plakortis is given.

A large and enigmatic new eleutherodactyline frog (Anura, Strabomantidae) from Serra do Sincora Espinhaco range, Northeastern Brazil

Zootaxa ◽  
2008 ◽  
Vol 1761 (1) ◽  
pp. 59 ◽  
Author(s):  
JOSÉ CASSIMIRO ◽  
VANESSA K. VERDADE ◽  
MIGUEL T. RODRIGUES
Keyword(s):  
New Species ◽  
Central America ◽  
The Other ◽  
Northeastern Brazil ◽  
Head Width ◽  
Mountain Range ◽  
Campos Rupestres ◽  
Espinhaço Range ◽  
Large Size ◽  
A New Species

We describe a new species of a large eleutherodactyline frog from the mountain rocky meadows (“campos rupestres”) of the Serra do Sincorá, Espinhaço mountain range, Mucugê municipality, State of Bahia, Brazil. The new species is promptly diagnosed from all the other Brazilian eleutherodactylines by its large size (males SVL 40.3–41.1; females SVL 75.2–79.7mm), broad head (head width 43–49% of SVL), presence of frontoparietal crests, pars fascialis of the maxilla deepened, discs absent on fingers, toes with poorly developed discs, first and second toes ridged, and tarsal fold absent. On the basis of these characters the new species is attributed to the genus Strabomantis up to now restricted to southern part of Central America and northwest part of South America.

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