Diversity of marine bryozoans inhabiting demosponges in northeastern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4290 (2) ◽  
pp. 281 ◽  
Author(s):  
ANA C.S. ALMEIDA ◽  
FACELUCIA B.C. SOUZA ◽  
CARLA MENEGOLA ◽  
LEANDRO M. VIEIRA
Keyword(s):  
New Species ◽  
Shallow Water ◽  
Larval Settlement ◽  
Taxonomic Status ◽  
Northeastern Brazil ◽  
Abundance Distribution ◽  
Bryozoan Species ◽  
Colony Form ◽  
Sessile Organisms ◽  
Cheilostome Bryozoans

As primary or obligate sessile organisms, bryozoans depend upon a substratum resource that affects their abundance, distribution and diversity. These animals can colonize virtually any type of substratum, including other organisms and artificial structures. Associations between bryozoans and sponges are commonly reported in the literature, but there are few studies discussing the association between these two taxa in detail. Here we present data on the bryozoan community found on shallow-water sponges from Bahia coast, northeastern Brazil, including their taxonomic status, colony form and adaptative structures utilized by these bryozoans to grow on sponges. Twenty-one bryozoan species were found attached to the surface of sixteen species of sponges. Five new species of cheilostome bryozoans are described. A total of 105 colonies were studied and most of them are erect delicate branching (44 colonies) and encrusting patches (34 colonies). The majority of bryozoan colonies were attached to the surface of rugose-textured sponges (67 colonies; 61%). This suggests that bryozoans are more likely to settle on irregular and rough surfaces. Patches colonies were mainly attached to the portion of the sponge that was in contact with the seabed, and spot colonies were particularly found in spatial refuges, showing the preference of larvae to settle on shaded and less exposed substrata. Most erect bryozoans were attached to the lateral sponge surface, other colonies grew on the underside and few on the upper surface of the sponges. These colonies were attached either using anchoring rhizoids, rigid bases, or stolons. The bryozoan species and genera reported here are common in northeastern Brazil and considered generalists in terms of larval settlement requirements. The bryozoan-sponge association studied is considered a non-obligatory commensalism (inquilinism). 

scholarly journals Calliostoma and Akoya of the Californian Marine Province (Gastropoda: Calliostomatidae)

The Festivus ◽  
2019 ◽  
Vol 51 (1) ◽  
pp. 11-28
Author(s):  
Paul Tuskes ◽  
Ann McGowan-Tuskes
Keyword(s):  
New Species ◽  
Shallow Water ◽  
Shell Morphology ◽  
Species Analysis ◽  
Shallow Water Species ◽  
Unique Species ◽  
Sessile Organisms ◽  
A New Species ◽  
Water Species

Fifteen species of Calliostomatidae are known to occur in the Californian marine province. Biological observations in situ on shallow water species indicates they are primarily carnivores, feeding on sessile organisms such as sponge, bryozoan, hydrozoa, diatoms and various Cnidaria. Adult variation, distribution, depth, and habitat are discussed and a summary of distribution records are provided for unique species. Analysis of shell morphology indicates Akoya titanium is a synonymy of A. platinum. A review of museum material also suggests that C. splendens appears to be correctly placed as a synonym of C. supragranosm. A new species of Calliostoma from the most southern portion of the Californian marine province is described and illustrated.

First record of a living ditaxiporine catenicellid in the Atlantic, with a description of Vasignyella ovicellata n. sp. (Bryozoa)

Zootaxa ◽  
2007 ◽  
Vol 1582 (1) ◽  
pp. 49-58 ◽  
Author(s):  
LEANDRO M. VIEIRA ◽  
DENNIS P. GORDON ◽  
MONICA D. CORREIA
Keyword(s):  
New Species ◽  
Littoral Zone ◽  
Type Species ◽  
First Record ◽  
Northeastern Brazil ◽  
Reproductive State ◽  
Colony Form ◽  
Early Oligocene ◽  
Extinct Genus ◽  
First Time

The genus Vasignyella Gordon, 1989 is recorded for the first time from the Atlantic Ocean, in the littoral zone of Alagoas, northeastern Brazil. It is only the second species attributed to the genus, the type species of which has never been seen in a reproductive state, and which has a colony form of uniserial chains of unizooidal internodes. The new species from Brazil, herein described as V. ovicellata, has a similar colony form in the infertile state, but has ovicells in multizooidal internodes. This character allows a reconsideration of the phylogenetic relationships of Vasignyella, which was previously the sole included genus in the catenicellid bryozoan subfamily Vasignyellinae. The nearest generic relative of Vasignyella was, however, considered to be the extinct genus Ditaxiporina Stach, 1935 (subfamily Ditaxiporinae), with near-identical autozooidal morphology, but with most internodes multizooidal and also having ovicells when reproductive. The discovery of ovicells in Vasignyella allows the subfamily Vasignyellinae to be discarded and the genus transferred to the Ditaxiporinae, a subfamily with an Atlanto-American record previously known to range from the Late Paleocene to the Early Oligocene.

Bryozoa on disarticulated bivalve shells from Todos os Santos Bay, northeastern Brazil, with the description of two new species

Zootaxa ◽  
2018 ◽  
Vol 4434 (3) ◽  
pp. 401 ◽  
Author(s):  
ANA C.S. ALMEIDA ◽  
FACELUCIA B.C. SOUZA ◽  
JAMILE FARIAS ◽  
ORANE F.S. ALVES ◽  
LEANDRO M. VIEIRA
Keyword(s):  
Northeastern Brazil ◽  
New Combination ◽  
Potential Surfaces ◽  
Bryozoan Species ◽  
Lack Of Information ◽  
Sessile Organisms ◽  
Substratum Preference ◽  
Benthic Animals ◽  
Hard Substrata ◽  
Bivalve Shells

As sessile organisms, bryozoans are among the commonest components of the encrusting communities on hard substrata. On unconsolidated bottoms, benthic animals and their carapaces, including mollusk shells, represent potential surfaces for encrustation. Here we describe the bryozoan fauna growing on disarticulated bivalve shells collected intertidally on Itaparica beach, Todos os Santos Bay, northeast Brazil. We examined a total of 382 valves representing seven species of bivalves, among which we found 82 valves of three bivalve species to be encrusted by bryozoans, with 109 bryozoan colonies detected overall. We identified 11 cheilostome bryozoan species, among which Phidoloporidae and Smittinidae were the most diverse, with four and two species, respectively. We redescribed two bryozoan species, Parasmittina loxoides and Rhynchozoon phrynoglossum, and describe another two, Pleurocodonellina marcusi n. sp. and Rhynchozoon itaparicaensis n. sp., as new. A new combination for Cribella triangulata Canu & Bassler, 1928 is proposed, including Calyptotheca tenuata Harmer, 1957 as a new junior subjective synonym of Calyptotheca triangulata n. comb. All but one of the 11 species have encrusting colonies; Licornia aff. diadema, forms erect branching colonies. For seven of the bryozoans, ours are the first records of these species growing on shells. Although the majority of bryozoans we studied have also been reported on other substrata, Rhynchozoon brasiliensis and Parasmittina loxoides were predominant in the fauna, comprising 79 (72%) of all colonies inventoried. Due to the lack of information on the distribution of these species in northeastern Brazil, further studies are needed to determine whether they show any substratum preference. 

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

A New Species of Justicia (Acanthaceae: Acanthoideae: Justicieae) from Northeastern Brazil

2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Morphological Characters ◽  
Northeastern Brazil ◽  
Distribution Map ◽  
Key To Species ◽  
A New Species

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.

scholarly journals New Recent foraminiferal genera and species from the lagoon at Madang, Papua New Guinea

1992 ◽  
Vol 11 (1) ◽  
pp. 85-93 ◽  
Author(s):  
Martin R. Langer
Keyword(s):  
New Species ◽  
Shallow Water ◽  
Papua New Guinea ◽  
New Guinea ◽  
Coarse Grained ◽  
New Genera ◽  
Low Oxygen ◽  
Shell Surface ◽  
Sedimentary Environments ◽  
Tropical Lagoon

Abstract. Two new genera and eight new species of benthic foraminifera are described from the shallow water, tropical lagoon of Madang, Papua New Guinea. The new hauerinid genus Pseudolachlanella is characterized by juvenile cryptoquinqueloculine, adult almost massiline arranged chambers, and a slitlike, curved aperture with parallel sides and a long, slender, curved miliolid tooth. Pitella haigi n. gen., n. sp. is a new foraminifera with cryptoquinqueloculine arranged chambers, an almost entirely pitted shell surface (pseudopores) and a rounded aperture with a short simple tooth. Among the other species described as new are four hauerinids and two agglutinated foraminifera All new species described here occur sporadically in the shallow water back- and forereef environments of the lagoon (0–55m), and live infaunally and epifaunally in well-oxygenated, fine and coarse grained biogenic sediments. They are absent in muddy, organic-rich, low-oxygen sedimentary environments within bay inlets where variations of salinity are considerable.

scholarly journals A new species of scaly blenny of the genus Labrisomus (Actinopterygii: Labrisomidae) from the tropical West Atlantic

Zootaxa ◽  
2009 ◽  
Vol 2015 (1) ◽  
pp. 62-68 ◽  
Author(s):  
IVAN SAZIMA ◽  
ALFREDO CARVALHO-FILHO ◽  
JOÃO LUIZ GASPARINI ◽  
CRISTINA SAZIMA
Keyword(s):  
New Species ◽  
Northeastern Brazil ◽  
Dark Spot ◽  
Rocky Shores ◽  
Southwestern Atlantic ◽  
Western Atlantic ◽  
Light Blue ◽  
Dorsal Fin ◽  
Fernando De Noronha ◽  
A New Species

A new species of scaly blenny, Labrisomus conditus sp. n., is described from Fernando de Noronha Archipelago, off northeastern Brazil. It differs from its Western Atlantic congeners by the following combination of characters: nuchal cirri when depressed not reaching dorsal-fin origin, 68 to 73 lateral line scales, first and second dorsal-fin spines slightly shorter than third spine and not flexible, numerous pale dots overall (light blue in life), opercular dark spot with incomplete and diffuse broad pale margin (orange in life). The new species is a territorial bottom-dweller in rocky shores and is found among algae and in crevices at depths from 0.5 to 6 m. Labrisomus conditus sp. n. feeds mostly on crustaceans (crabs, amphipods) and molluscs (snails, bivalves). The new species increases to five the species within the genus Labrisomus recorded from Southwestern Atlantic.

Revision of the Australian species of Agrotera Schrank (Lepidoptera: Pyraloidea: Crambidae: Spilomelinae)

Zootaxa ◽  
2017 ◽  
Vol 4362 (2) ◽  
pp. 213 ◽  
Author(s):  
KAI CHEN ◽  
MARIANNE HORAK ◽  
XICUI DU ◽  
DANDAN ZHANG
Keyword(s):  
New Species ◽  
Related Species ◽  
Male Genitalia ◽  
New South ◽  
New South Wales ◽  
Taxonomic Status ◽  
Northern Territory ◽  
Australian Species ◽  
South Wales ◽  
Two New Species

The genus Agrotera Schrank, 1802 is revised for Australia and the generic definition is refined based on the male genitalia. The genera Leucinodella Strand, 1918 stat. rev. with L. leucostola (Hampson, 1896) comb. nov., Nistra Walker, 1859 stat. rev. with N. coelatalis Walker, 1859 comb. rev., Sagariphora Meyrick, 1894 stat. rev. with S. magnificalis (Hampson, 1893) comb. nov., and Tetracona Meyrick, 1884 stat. rev. with T. amathealis (Walker, 1859) comb. rev. and T. pictalis Warren, 1896 comb. rev. are removed from synonymy with Agrotera, as they lack the synapomorphies of Agrotera. Two new species, Agrotera genuflexa sp. nov. from Northern Territory, Queensland and New South Wales, and A. longitabulata sp. nov. from Queensland, are described. The taxonomic status of the Australian species of Agrotera is discussed, and a key to all species, based on males, is provided. The adults and genitalia of the new species and some related species are figured. 

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