Unravelling the taxonomic identity of Ophiothela Verrill, 1867 (Ophiuroidea) along the Brazilian coast

Author(s):  
Renata A. S. Alitto ◽  
Gabriela Granadier ◽  
Ana B. Christensen ◽  
Timothy O'Hara ◽  
Maikon Di Domenico ◽  
...  

AbstractSince 2012, when Ophiothela was first described in the Atlantic, there has been no consensus regarding its identification. It has been described as O. mirabilis, O. cf. mirabilis, O. danae, or only Ophiothela sp. In order to fill these gaps, our aim was to test if specimens from Brazil are Ophiothela mirabilis and/or Ophiothela danae. Syntypes from the Museum of Comparative Zoology and United States National Museum, Smithsonian Institution, were used. We examined species boundaries of the small six-rayed brittle star Ophiothela using independent character sets utilizing morphology (external morphology and morphometry) and molecular data (16S and COI). Concordance was found between the analyses indicating that Ophiothela sp. from Brazil (BR), Ophiothela mirabilis and Ophiothela danae are closely related. We suggest that O. danae should be considered as a junior synonym of O. mirabilis. A detailed description of O. mirabilis BR is presented using external morphology and microstructural ossicles (arm plates, vertebra, dental and oral plates). This description includes new diagnostic features, particularly regarding its microstructures: (i) transspondylous articulation (first record in Ophiotrichidae); (ii) eight smooth knobs on the dorsal surface of the vertebrae (to date only in Ophiothela); (iii) vertebrae with distal keel divided into two separate end processes matching the two large dorsal grooves proximally (first time in the literature); and (iv) an opening on both sides of the oral plate (as seen in other fissiparous species Ophiactis savignyi and Ophiocomella ophiactoides).

Zootaxa ◽  
2021 ◽  
Vol 5005 (3) ◽  
pp. 358-366
Author(s):  
JIU TANG ◽  
YALIN ZHANG

The taxonomy of the hylicine genus Hatigoria Distant is reviewed based on morphological study of the types and other specimens. The male external morphology and genitalia of two known species, H. praeiens Distant, 1908 and H. sauteri Jacobi, 1914, are described and photographed for the first time. A description and figures of the female ovipositor of H. praeiens Distant, 1908 are provided. One new species, H. longistylia n. sp., from Laos and China is reported with descriptions and figures. This also represents the first record of the genus Hatigoria from Laos. A key to adult males of all species is provided.


Zootaxa ◽  
2012 ◽  
Vol 3351 (1) ◽  
pp. 1 ◽  
Author(s):  
FRANCISCO SOSA ◽  
SERGIO DE FREITAS

Titanochrysa Sosa & Freitas is a new genus of Neotropical Chrysopini (Chrysopidae: Chrysopinae) recorded from Costa Rica,Venezuela and Brazil. Titanochrysa gen. nov. shares several external and genitalic characters with Ceraeochrysa Adams, 1982;Chrysopodes Navás, 1913; Cryptochrysa Freitas & Penny, 2000; Parachrysopiella Brooks & Barnard, 1990 and Ungla Navás1914. It may be distinguished from those genera by its very long sternite 8+9, sternites 2–8 usually with microtholi, male geni-talia with the dorsal surface of the arcessus striated, gonosaccus well-developed, bearing elongate gonosetae and microsetae,and a spoon-like gonapsis. Herein, Titanochrysa circumfusa (Burmeister, 1939) [= Chrysopodes circumfusa (Burmeister)]comb. nov. and Titanochrysa pseudovaricosa (Penny) [= Ceraeochrysa pseudovaricosa Penny, 1998] comb. nov. were identi-fied; Titanochrysa ferreirai Sosa & Freitas sp. nov. and Titanochrysa trespuntensis Sosa & Freitas sp. nov. were described.The external morphology, and male and female genitalia of all these species are described. Titanochrysa circumfusa (Burmeister, 1939) comb. nov. is recorded for the first time from Venezuela.


Mammalia ◽  
2018 ◽  
Vol 82 (3) ◽  
pp. 266-275 ◽  
Author(s):  
Ana Cláudia Delciellos ◽  
Ana Carolina Loss ◽  
Marcia Aguieiras ◽  
Lena Geise ◽  
Oscar Rocha-Barbosa

Abstract The echimyid rodents of the genus Phyllomys are medium-sized arboreal spiny rats endemic to the Atlantic Forest of Brazil. The genus is currently composed of 13 species, although there are at least four other undescribed species. The ecology, zoogeography and diversity of the genus are still poorly understood. Here, we provide the first record of Phyllomys sulinus from the Brazilian state of Rio de Janeiro, based on a specimen collected in the Serra da Bocaina National Park, which extends the known geographic range of the species approximately 130 km to the northeast. At this site, P. sulinus occurred in syntopy with the cryptic Phyllomys nigrispinus. We describe the karyotype of P. nigrispinus for the first time and identify two different diploid numbers (2n=84 and 85). We also conducted a molecular analysis of the cytochrome b gene of five specimens, which we identified by phylogenetic reconstruction. Our findings reinforce the importance of molecular data, such as DNA sequences, and karyotypes for the differentiation of cryptic, syntopic species.


Nematology ◽  
2017 ◽  
Vol 19 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Majid Pedram ◽  
Ali Roshan-Bakhsh ◽  
Ebrahim Pourjam ◽  
Mohammad Reza Atighi ◽  
Wilfrida Decraemer ◽  
...  

Trichodorus variabilis, recovered from three separate locations in natural forests of northern Iran, was studied using morphological, morphometric and molecular data. Variation in position of the ventromedian cervical papillae (CP1 and CP2) with respect to the onchiostyle base in the resting position, and spicule characters (having or lacking striation in distal blade region and bristles in proximal blade region) were observed. Variation was also observed in the nature of the pharyngo-intestinal junction (offset to slight overlapping). The secretory-excretory pore of females also showed slight variation in placement. Molecular phylogenetic studies, using partial 28S rDNA D2-D3 sequences of three studied populations and one sequenced isolate of the species from Greece, revealed T. variabilis has variation in the sequences of this genomic fragment. The similarity percent of four sequences ranged from 96.7 to 99.7%. The species was found for the first time outside of Greece, the country from which it was originally described. A newly recovered population of T. persicus, originally described from Iran, was also included in the molecular phylogenetic analyses.


Zootaxa ◽  
2004 ◽  
Vol 723 (1) ◽  
pp. 1
Author(s):  
FRANKLIN NOEL SANTOS ◽  
RICARDO SILVA ABSALÃO

The genus Pisinna Monterosato, 1878 (Anabathridae Ponder, 1988) is reported from the Brazilian coast for the first time. Pisinna bicincta n. sp. is found off Esp rito Santo State (65 67 m depth) on the Brazilian continental shelf. It is diagnosed by its pupiform shell, with subsutural depression, two spiral bands (one white and one orange), dome-shaped paucispiral protoconch sculptured with about 17 spiral rows of minute flat pits, teleoconch with about 22 oblique axial cordlets, and aperture with columellar tooth.


Check List ◽  
2017 ◽  
Vol 13 (2) ◽  
pp. 2060
Author(s):  
Alex Barbosa de Moraes ◽  
Daniele Cosme Soares de Moraes ◽  
Carlos Eduardo Rocha Duarte Alencar ◽  
Willianilson Pessoa da Silva ◽  
Fúlvio Aurélio de Morais Freire

Potimirim potimirim (Müller, 1881), a species of coastal freshwater shrimp, is recorded for the first time from the state of Rio Grande do Norte, northeastern of Brazil, where it was collected in a small tributary of the Potengi River. This record extends the distribution of this species about 220 km north along Brazilian coast. New records, such as this, reinforce the need for greater research efforts in the northeastern freshwater ecosystems of Brazil to provide better understand the region’s biodiversity and establish better parameters for conservation actions.


Check List ◽  
2011 ◽  
Vol 7 (3) ◽  
pp. 383 ◽  
Author(s):  
Cynthia Lara De Castro Manso ◽  
Jéssica Prata de Oliveira ◽  
Mário S. Ximenez

Ophioscolex glacialis Müller and Troschel, 1840 (Ophiuroidea: Ophiomyxidae) was registered for first time off the Brazilian coast, from the Campos Basin of Rio de Janeiro, Brazil. The specimen was sampled during a environmental monitoring. 


2021 ◽  
Vol 325 (3) ◽  
pp. 291-307
Author(s):  
V.M. Gnezdilov

The tribe Adelungiini Baker, with Platyproctus agraphopteron Bergevin, 1932, P. melichari (Kusnezov, 1929), and P. emir sp. nov., collected on Calligonum crinitum Boiss. arabicum Sosk., is recorded for the first time from the United Arab Emirates. Symphypyga omani Kameswara Rao et Ramakrishnan, 1983 and Assiuta camena Linnavuori, 1969 are transferred to the genus Platyproctus Lindberg, 1925 based on male genitalia structure, with new combinations proposed – Platyproctus omani (Kameswara Rao et Ramakrishnan, 1983), comb. nov. and P. camena (Linnavuori, 1969), comb. nov. Platyproctus emir sp. nov. is closely related to P. camena and P. omani in general male genitalia structure, but well differs by the aedeagus with denticles on dorsal surface of the shaft and wider pygofer lobes. The genus Assiuta Linnavuori 1969 is treated as monotypic Canarian endemic, monophage on Traganum moquini Webb ex Moq. Assiuta salina is close to Emelyanogramma proxima (Dlabola, 1960) by strongly dentate ventral margin of aedeagal shaft. The lectotype is designated for Symphypyga melichari Kusnezov, 1929. Platyproctus flavidus Dubovsky, 1966 is placed in synonymy under P. marmoratus (Horváth, 1894) while P. maculatus (Pruthi, 1930) and Symphypyga melichari fuscopunctata Kusnezov, 1929 are placed in synonymy under P. melichari (Kusnezov, 1929). Illustrations of male genitalia structure for E. proxima and the photos of external views for A. salina and P. camena are given for the first time.


Zootaxa ◽  
2021 ◽  
Vol 5005 (3) ◽  
pp. 291-303
Author(s):  
INGRID COSTA MARÇAL ◽  
FERNANDA POLLI PÁEZ ◽  
LENICE SOUZA-SHIBATTA ◽  
SILVIA HELENA SOFIA ◽  
GUSTAVO MONTEIRO TEIXEIRA

A new species of freshwater anomuran crab, Aegla buenoi n. sp., is described. The new taxon was collected from two streams within the Cinzas River basin, Paraná state, Brazil. We used morphological and molecular data (COI mtDNA) to distinguish the new species from its congeners. Aegla buenoi n. sp. is differentiated by morphological diagnostic features of the cephalothorax, chelipeds, second abdominal epimeron, and uropods. Molecular results confirm the separation of A. buenoi n. sp. from closely related species (A. castro Schmitt, 1942, A. lata Bond-Buckup & Buckup, 1994, and A. jacutinga Marçal & Teixeira, 2020). Hence, our study increases the known diversity of aeglids and reports the first species of Aegla from the Cinzas River basin.


2021 ◽  
Vol 27 (2) ◽  
Author(s):  
Aheibam Jeeran Kumar Singh ◽  
R.K. Gambhir Singh

The present paper deals record of a Rhipicephalus tick, reported for the first time from Manipur, a new record of India. The species under this genus have usual morphological features viz., having a hard sclerotized scutum which completely cover the dorsal surface of the body in males but present a small shield just behind the capitulum in female, basis capitulum is hexagonal in shape, mouth part anterior in position, eyes if present are located near the lateral margin of the scutum, presence of adanal plate in male, presence of festoons, etc. The present specimen which is reporting as a new record was collected from cattle (Bos indicus) from Wakha (24º46'22'’ N, 93º59'12'’E) Imphal East District, Manipur,India. On detailed microscopic observation, the present specimen was found to possess the morphological characters similar to the already known Rhipicephalus species, Rhipicephalus deltoides is a first record from India.


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