A new genus with three new species of free-living marine nematodes of the subfamily Desmodorinae (Nematoda: Desmodoridae), from the continental shelf off northeastern Brazil

Zootaxa ◽  
2019 ◽  
Vol 4615 (2) ◽  
pp. 321
Author(s):  
ALEXANDRE L. LARRAZÁBAL-FILHO ◽  
PATRÍCIA F. NERES ◽  
MARIA CRISTINA DA SILVA ◽  
ANDRÉ M. ESTEVES
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
New Genus ◽  
Head Capsule ◽  
Northeastern Brazil ◽  
Dorsal Spine ◽  
Entire Body ◽  
Marine Nematodes ◽  
Cuticular Ornamentation ◽  
Three New Species

Three new species representing a new genus of marine nematodes were collected on the continental shelf of the Potiguar Basin, northeastern Brazil. Spinonema gen. n. has a coarsely annulated cuticle with the inner layer ornamented with vacuoles, and lateral alae. The lateral alae are formed by raised and bent lateral sections of annules, resembling the letter C. C-shaped refers to each individual segment of ala. Some species have a dorsal spine, arched spicules and a well-developed head capsule, with a thick cuticle without annulations. Spinonema gen. n. has some features in common with certain genera of the family Desmodoridae but can be distinguished by the coarse body annuli, cuticular ornamentation (lateral alae, and in some species a dorsal spine) and the absence of subcephalic setae. The type species of the new genus, Spinonema cuticulatum gen. et sp. n., is characterized by the presence of a spiral fovea amphidialis, hook-shaped spicules in the capitulum, a velum and three ejaculatory glands. Spinonema spirale gen. et sp. n. has body annuli with the inner cuticle ornamented with vacuoles along the entire body, a multispiral fovea amphidialis with 3.15 turns and a gubernaculum intricate, with lateral crurae. Dorsal apophysis of gubernaculum wing-shaped. Spinonema absente gen. et sp. n. has a cryptospiral fovea amphidialis, short spicules, a simple gubernaculum and three precloacal setae. 

Four new species and an identification key for Stygodesmodora Blome, 1982 (Nematoda: Spiriniinae) from the continental shelf off northeastern Brazil 

Zootaxa ◽  
2017 ◽  
Vol 4294 (1) ◽  
pp. 46
Author(s):  
ALEXANDRE L. LARRAZÁBAL-FILHO ◽  
PATRÍCIA F. NERES ◽  
ANDRÉ M. ESTEVES
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Continental Shelf ◽  
The Body ◽  
Identification Key ◽  
Northeastern Brazil ◽  
Marine Nematodes ◽  
Undescribed Species ◽  
Potiguar Basin

Four previously undescribed species of marine nematodes were collected on the continental shelf of the Potiguar Basin in northeastern Brazil. Stygodesmodora amphidialis sp. n. has a large fovea amphidialis, long cephalic setae, globular spermatic cells, 6–8 tubular supplements and button-like caudal papillae. Stygodesmodora paramphidialis sp. n. is similar but can be differentiated by the presence of a bipartite lumen and a fovea amphidialis smaller than in S. amphidialis sp. n. Stygodesmodora robusta sp. n. has a relatively robust body, strongly annulated cuticle, one large dorsal tooth and a small ventral tooth, one row of nine ventrally placed precloacal setae, and arched spicules. Stygodesmodora potiguensis sp. n. has the cuticle strongly annulated, many setae along the body, supplements absent, and sexual dimorphism in the size of the fovea amphidialis. These four new species increase to seven the number of taxa known in the genus. 

The genus Bolbonema Cobb, 1920 (Nematoda: Desmodoridae): emended diagnosis, key to males, and description of three new species from the continental shelf off northeastern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4420 (4) ◽  
pp. 551
Author(s):  
ALEXANDRE L. LARRAZÁBAL-FILHO ◽  
PATRÍCIA F. NERES ◽  
ANDRÉ M. ESTEVES
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
First Record ◽  
Distal Portion ◽  
Proximal Region ◽  
The Body ◽  
Northeastern Brazil ◽  
Valid Species ◽  
Three New Species ◽  
Emended Diagnosis

The marine nematode genus Bolbonema has three valid species, the most recent one described eight years ago. Characteristics of the genus include the well-defined globular cephalic capsule and the long and short somatic setae along the body. Three previously undescribed species of this genus were collected on the continental shelf of the Potiguar Basin in northeastern Brazil. Bolbonema braziliensis sp. n. has a relatively large cryptospiral fovea amphidialis, gubernaculum a bent rod dorsally oriented and two subventral precloacal setae inserted on two small papillae above the cloaca. Bolbonema papillae sp. n. has a large multispiral fovea amphidialis with three turns, arched spicules with the proximal region rounded, a laminar and well-developed gubernaculum enfolding the distal portion of the spicules, and two subventral precloacal papillae just above the cloaca. Bolbonema zildae sp. n. has a spiral fovea amphidialis, no supplements, arched spicules with a velum, and the gubernaculum with a dorsal apophysis. These three new species increase to six the number of taxa known in the genus. A dichotomous key based on males, an emended diagnosis of the genus, and the first record of Bolbonema brevicolle Cobb, 1920 from Brazil are provided. 

New eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from banana and heliconia in Northeastern Brazil—two new genera and three new species

Zootaxa ◽  
2011 ◽  
Vol 3042 (1) ◽  
pp. 15
Author(s):  
ALEUNY C. REIS ◽  
MANOEL G. C. GONDIM JR. ◽  
DENISE NAVIA ◽  
CARLOS H. W. FLECHTMANN
Keyword(s):  
New Species ◽  
Host Plants ◽  
New Genus ◽  
Northeastern Brazil ◽  
Musa Balbisiana ◽  
Eriophyoid Mites ◽  
Leaf Surfaces ◽  
Three New Species ◽  
Mite Family ◽  
Damage Symptoms

A new genus and new species of the mite family Eriophyidae (Phyllocoptinae), namely Cothrix erugata n. sp. et n. gen., is described from Heliconia stricta Huber (Heliconiaceae). In addition, one new genus and two new species of Diptilomiopidae, namely Rhyncadicrus asperulus n. sp. et n. gen. from banana, Musa acuminata Colla x Musa balbisiana Colla (genomic group AAB) (Musaceae) and Catarhinus granatus n. sp. from Heliconia bihai L., are described and illustrated. The mites were collected in the State of Pernambuco, Northeastern Brazil. All were vagrants on the lower leaf surfaces of their host plants and no visible damage symptoms were observed.

scholarly journals Harvestmen in the semiarid: a new genus and three new species of Pachylinae (Opiliones: Gonyleptidae) from Caatinga dry vegetation, with a cladistic analysis

2021 ◽  
Vol 79 ◽  
pp. 485-507
Author(s):  
Nícolas Eugenio de Vasconcelos Saraiva ◽  
Marcos Ryotaro Hara ◽  
Marcio Bernardino DaSilva
Keyword(s):  
New Species ◽  
New Genus ◽  
Cladistic Analysis ◽  
Sister Group ◽  
Northeastern Brazil ◽  
Future Research ◽  
High Species Diversity ◽  
Three New Species ◽  
One New Species ◽  
Shed Light

Abstract Opiliones are highly diverse in the Neotropics. Because of biological constraints, most harvestmen communities are associated with humid forests, exhibiting a high species diversity and endemism in these habitats. Drier formations, such as the Caatinga biome in northeastern Brazil, are less diverse and still considered under-sampled for the order. This study represents an effort to examine the aforementioned diversity by describing a new Gonyleptidae genus, Sertanejagen. nov., comprising two new species from Ceará state, Sertaneja bicuspidatasp. nov. and Sertaneja crassitibialissp. nov., and one new species from Rio Grande do Norte state, Sertaneja falcatasp. nov. A morphological cladistic analysis consisting of 20 terminals and 72 characters was performed to evaluate monophyly of the new genus and relate it to other Gonyleptidae. The analysis resulted in a single most parsimonious tree, corroborating Sertanejagen. nov. monophyly and relatedness to Gyndoides springmanni Soares & Soares, 1947, which in turn is the sister group to the DRMN clade. Taking into account the morphological traits and phylogenetic placement of Sertanejagen. nov., we chose to place the new genus in Pachylinae despite its polyphyletic status, given that the Sertanejagen. nov. clade is closely related to one of the Brazilian Pachylinae lineage. A resolution to the Pachylinae conundrum is needed to further explain the subfamily intricacies. Future research requires a larger scope, but currently, based on the new genus monophyly, support, and relatedness, we formally propose its creation and hope to shed light on the possible evolutionary scenarios for the subfamily.

Eriophyoid mites (Acari: Prostigmata: Eriophyoidea) from fruit trees in Northeastern Brazil—a new genus, three new species and a redescription

Zootaxa ◽  
2010 ◽  
Vol 2694 (1) ◽  
pp. 43 ◽  
Author(s):  
ALEUNY C. REIS ◽  
MANOEL G. C. GONDIM JR. ◽  
DENISE NÁVIA ◽  
CARLOS H. W. FLECHTMANN
Keyword(s):  
New Species ◽  
New Genus ◽  
Fruit Trees ◽  
Northeastern Brazil ◽  
Eugenia Uniflora ◽  
Eriophyoid Mites ◽  
The Family ◽  
Two New Species ◽  
Three New Species ◽  
A New Species

A new genus and two new species of eriophyoid mites in the family Diptilomiopidae associated with Spondias mombin L. (Anacardiaceae), namely Solivagus n. gen. alpha n. sp. and Davisella spondias n. sp., are described. In addition, a new species of Eriophyidae associated with Eugenia uniflora L. (Myrtaceae), namely Dichopelmus ibapitanga n. sp., is described and Aculus pitangae Boczek & Davis, also from E. uniflora, is redescribed including a description of the male, and its classification is discussed. All material studied was collected in the State of Pernambuco, Northeastern Brazil.

Description of Macutula, a new genus of jumping spiders from Northeastern Brazil (Araneae: Salticidae: Amycoida)

Zootaxa ◽  
2011 ◽  
Vol 2785 (1) ◽  
pp. 53
Author(s):  
GUSTAVO RODRIGO SANCHES RUIZ
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
The State ◽  
Northeastern Brazil ◽  
Jumping Spiders ◽  
Three New Species

Three new species from Northeastern Brazil are described and included in the newly proposed genus Macutula gen. nov. The type species M. aracoiaba sp. nov. and M. caruaru sp. nov. are described based on specimens from the State of Pernambuco, while M. santana sp. nov. is based on specimens from the State of Bahia.

scholarly journals Stratigraphy, mammalian paleontology, paleoecology, and age correlation of the Wasatch Formation, Fossil Butte National Monument, Wyoming

2016 ◽  
Vol 90 (5) ◽  
pp. 981-1011 ◽  
Author(s):  
Gregg F. Gunnell ◽  
John-Paul Zonneveld ◽  
William S. Bartels
Keyword(s):  
New Species ◽  
New Genus ◽  
Green River Formation ◽  
Main Body ◽  
Green River ◽  
National Monument ◽  
Forested Areas ◽  
Water Courses ◽  
Three New Species ◽  
Abundance And Diversity

AbstractFieldwork conducted in the Wasatch Formation in and around Fossil Butte has yielded a diverse assemblage of early Eocene vertebrates. Fossil vertebrates are distributed through three discrete stratigraphic intervals within the uppermost 180 m of the main body of the Wasatch Formation underlying the Green River Formation. These assemblages were derived primarily from fluvial overbank mudstone units overprinted with variably well-developed paleosols. The lowest (20 m) and highest (60 m) sections are characterized by less mature and more hydromorphic paleosols, whereas the middle section (100 m) is typified by more mature paleosols and more abundant channel sandstones.The combined assemblages contain at least 46 species of mammals. Faunal characteristics include high abundances of equid perissodactyls and a relatively high abundance and diversity of notharctines primates, an apparent absence of omomyid primates, relatively high rodent diversity, and relatively diverse and abundant artiodactyls. One new genus (Eoictopsnew genus) and three new species (Eoictops novacekinew species,Palaeosinopa lacusnew species, and ?Notoparamys blochinew species) are included in the Fossil Butte assemblage. Also recorded are late occurrences of two hyopsodontid condylarths and an early occurrence of a rare phenacodontid condylarth. The relatively high abundances of equids and notharctines suggest that vertebrate samples were derived from relatively open paleohabitats that included forested areas along water courses.All three assemblages contain characteristic Lysitean (Wasatchian biochron Wa-6) elements, but the occurrence of the palaeotheriid perissodactylLambdotheriumin the uppermost horizon indicates a Lostcabinian (Wa-7) age for at least the top of the Wasatch Formation. The overlying predominantly fish-bearing Fossil Butte Member of the Green River Formation also containsLambdotheriumand is therefore Wa-7 in age as well.

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