A new genus and species of Solenoceridae (Crustacea, Decapoda, Dendrobranchiata) from the Cretaceous (Aptian/Albian) of the Araripe Sedimentary Basin, Brazil

Zootaxa ◽  
2018 ◽  
Vol 4527 (4) ◽  
pp. 494 ◽  
Author(s):  
DAMARES RIBEIRO ALENCAR ◽  
ALLYSSON PONTES PINHEIRO ◽  
ANTÔNIO ÁLAMO FEITOSA SARAIVA ◽  
GUSTAVO RIBEIRO DE OLIVEIRA ◽  
WILLIAM SANTANA

The first fossil Solenoceridae found from the Cretaceous (Aptian–Albian) is described in the Araripe Sedimentary basin, Priorhyncha feitosai n. gen. n. sp. The material was collected in the strata of the Romualdo Formation, municipality of Trindade, Pernambuco. Characters that permit placement of the new species in Solenoceridae are: a short, dorsally serrated rostrum; a marked cervical groove; and the presence of an antennal spine. Those characters are also diagnostic for Priorhyncha feitosai n. gen. n. sp. when compared to the other Dendrobranchiata shrimp described from this basin. 

Parasite ◽  
2019 ◽  
Vol 26 ◽  
pp. 50
Author(s):  
F. Agustín Jiménez ◽  
Juan Manuel Caspeta-Mandujano ◽  
Sergio Albino-Miranda

Tlacuatzoxyuris simpsoni n. gen. n. sp. is described from the cecum of the gray opossum, Tlacuatzin canescens, a species endemic to the deciduous dry forest of Mexico. The digestive tracts of four specimens were examined for parasites; three of these were archived in the American Museum of Natural History and one was a live capture. Relative to the other four monotypic genera of pinworms known to infect opossums, the new genus is diagnosed on the basis of a round cephalic plate with a semicircular stoma surrounded by a rim. In addition, males feature a prominent cephalic vesicle not fully developed in females, accounting for sexual dimorphism. The new species includes small worms that feature a conspicuous, not reticulated cephalic vesicle and semicircular stoma and lateral alae with two crests. In addition, the postcloacal cuticle of males features a small area with ornamentation between cloaca and submedial papillae. Finally, both spicule and gubernaculum are relatively short. Although the eggs of Tlacuatzoxyuris n. gen. are unknown, the conspicuous differences in traits used in the diagnosis of genera prompted us to propose a new genus for the new species. This is the first species of Oxyuridae reported in mouse opossums outside South America, and the fifth species of the family occurring in didelphimorph marsupials. This is an example of the usefulness of documenting the diversity of parasites associated with this unique clade of mammals through the examination of preserved tissues.


Author(s):  
Miquel Vila-Farré ◽  
Ronald Sluys ◽  
Salvatore D'Aniello ◽  
Francesc Cebrià ◽  
Xavier Ferrer ◽  
...  

Marine planarians were collected extensively from the Iberian Peninsula and Italy. As a result we provide new distributional records of six species of marine triclads, including the description of one new genus and species. The study increases substantially our knowledge of the distribution of this group of animals in Spain and reveals that even relatively well studied areas, such as Italy, still yield new species. In addition, we performed immunostaining studies of the nervous system of three of the species, which revealed the detailed organization of the main nerve cords and their branches. In the new species, the lateral nerve branches showed an arrangement that is different from that of the other species.


1987 ◽  
Vol 119 (11) ◽  
pp. 1027-1042 ◽  
Author(s):  
J.M. Campbell

AbstractAnthobioides pubescens, an unusual new genus and new species of rove beetle, is described from the Olympic and Mt. Rainier National Parks, WA. The genus is assigned to the Anthobium-group of genera in the tribe Anthophagini, subfamily Omaliinae. The new genus represents the sister group of the genus Camioleum Lewis from Japan. The phylogeny of Anthobioides and Camioleum and their relationship to the other four genera assigned to the Anthobium-group is discussed. All pertinent characters of Anthobioides are illustrated by line drawings or scanning electron photomicrographs.


ZooKeys ◽  
2018 ◽  
Vol 774 ◽  
pp. 105-139 ◽  
Author(s):  
Jiří Moravec ◽  
Jiří Šmíd ◽  
Jan Štundl ◽  
Edgar Lehr

Cercosaurine lizards (subfamily Cercosaurinae of the family Gymnophthalmidae) represent a substantial component of the reptile fauna in the Neotropics. Several attempts have been made to reconstruct the phylogenetic relationships within this group, but most studies focused on particular genera or regions and did not cover the subfamily as a whole. In this study, material from the montane forests of Peru was newly sequenced. In combination with all cercosaurine sequences available on GenBank, an updated phylogeny of Cercosaurinae is provided. Monophyly was not supported for three of the currently recognised genera (Echinosaura, Oreosaurus, and Proctoporus). The genus Proctoporus is formed by five monophyletic groups, which should be used in future taxonomic revisions as feasible entities. Recognition of two previously identified undescribed clades (Unnamed clades 2 and 3) was supported and yet another undescribed clade (termed here Unnamed clade 4), which deserves recognition as an independent genus, was identified herein. Selvasaurabrava, a new genus and new species of arboreal gymnophthalmid lizard is described from the montane forests of the Pui Pui Protected Forest, Provincia de Chanchamayo, Región Junín, Peru. The new species is characterised by its small size (SVL 42.1–45.9 mm), slender body, smooth head shields, presence of paired prefrontal shields, fused anteriormost supraocular and anteriormost superciliary shields, transparent not divided lower palpebral disc, slightly rugose subimbricate rectangular dorsal scales in adults (slightly keeled in juveniles), distinctly smaller but non-granular lateral scales, smooth squared to rectangular ventral scales, and hemipenial lobes large, distinct from the hemipenial body. Phylogenetic affinities of the new genus to the other cercosaurine genera, as well as basal phylogenetic relationships between the other cercosaurine genera remain unresolved.


2021 ◽  
Vol 30 (2) ◽  
pp. 248-265
Author(s):  
M. González-Córdoba ◽  
V. Manzo ◽  
C.E. Granados-Martínez

A new riffle beetle, Zunielmis pax gen. et sp. nov., is described from Colombia (Vichada, Puerto Carreño, Bita River basin). It can be distinguished from all the other elmids by having large areas of a microgranular mesh (plastron) on the pronotum and elytra, crenulate lateral margin of the latter two, the shorter interocular distance than diameter of each eye, as well as by the characters of the structure of mandibles, the shape and sculpture of pronotum, and the structure of mesosternum, mesotibiae and elytra. The imagoes were collected on freshwater sponges. The habitat, where the new species was found, is described, and the adaptive meaning of the characteristics of plastron are discussed. Drawings and photographs of the adult habitus, distinctive morphological characters, and male and female genitalia are provided.


2021 ◽  
Vol 775 ◽  
pp. 1-14
Author(s):  
Sergei E. Tshernyshev

A new genus with a new species of soft-winged flower beetle, Pectotibialis paghmanensis Tshernyshev gen. et sp. nov. are described from Afghanistan. The new genus can be distinguished from the congeners of the tribe Apalochrini by the dark pectination in the apices of tibiae in both sexes, and the anterior tibiae which are hollowed at distal half, flattened and rounded femora, bituberculate basal parts of head and pronotum, two lamellate metathoracic appendages, tarsal comb above second tarsomere of anterior legs, and serrate antennae in the male. Based on the metathoracic appendages and comb in anterior legs would attribute this new species to the new genus Dromanthomorphus Pic, 1921, but all the other above-mentioned characters define its independent status and the designation of a new genus; Pectotibialis Tshernyshev gen. nov. The external appearance, special male characters and genitalia of the type species of the new genus are illustrated, and a distribution map is provided. A key to the Apalochrus-section of the tribe Apalochrini is provided.


2001 ◽  
Vol 75 (3) ◽  
pp. 475-512 ◽  
Author(s):  
Lukas Hottinger

Exceptionally large quantities of outstandingly well-preserved, free specimens of larger foraminifera from late Miocene sediments of the Dominican Republic invite an analysis of their structure in detail. The structures of the porcelaneous larger foraminifera reveal that most of them are not candidates for a direct ancestry of the species living today in the Caribbean. Although the late Miocene period has produced Caribbean endemists, in particular within the agglutinated group of the textulariellids and the lamellar-perforate group of the amphisteginids, the porcelaneous archaiasines and soritines are more closely related to the early Miocene forms of the Neotethys than to the Recent Caribbean endemists. These relationships are derived from their relative structural similarity and call for the proposition of appropriate additional taxa on the generic and specific levels. Miocene Miarchaias new genus develops several centimeters large, cyclical agamonts with meandropsinid structures covering the lateral surface of the disc (M. meander new species) whereas species of smaller shell size do not have cyclical generations (M. modestus new species). On the other hand, populations of cyclical schizonts and/or gamonts exhibit structures similar to the Recent, spiral Androsina: Androsinopsis radians new genus and species. The other new taxa erected here, Annulosorites spiralis new genus and species and Cyclorbiculina miocaenica new species, reflect differences in the apertural face and the respective arrangement of radial partitions as used to differentiate Recent Sorites from Amphisorus. Specimens to be attributed to the genera Cycloputeolina and Parasorites are present in the late Miocene of the Dominican Republic. They exhibit an exoskeleton in contrast to true soritids, and will need an eventual worldwide revision on the species level.


Zootaxa ◽  
2012 ◽  
Vol 3452 (1) ◽  
pp. 47 ◽  
Author(s):  
SIMONA PREVORČNIK ◽  
RODRIGO LOPES FERREIRA

The aquatic troglobiont Brasileirinho cavaticus (Crustacea: Isopoda: Calabozoidea), new genus and species is described from the karst cave of the State of Bahia, Brazil. Based on its unique pleonal features i.e. the total absence of female pleopods I–II, uniramous male pleopods I–II, minute, uniramous respiratory pleopods III–V in both sexes and pleotelson not exceeding 45% of the pleon length, a new family, Brasileirinidae, is created. Some biological, ecological and behavioral data for the species are provided together with the nature conservation issues. Additionally, an assignment of the new species to the suborder Calabozoidea is discussed through comparison with the other two calabozoid species, Calabozoa pellucida and Pongycarcinia xiphidiourus. For the latter species, some previously missing morphological details, as well as a new locality record, are provided. According to the updated morphological evidence, the previously assumed relationships of Calabozoidea are discussed and, consequently, the diagnostic characters of some taxa emended.


2020 ◽  
Vol 29 (2) ◽  
pp. 347-352
Author(s):  
A.V. Gorochov

The tribe Arachnocephalini is divided into three subtribes: [1] Pseudomogoplistina subtrib. nov. with one genus lacking ventrolateral lobes on the tarsi and having a massive Y-shaped sclerite in the male genitalia; [2] Bothromogoplistina subtrib. nov. including two genera with similar tarsi but with a different structure of the male genitalia (lacking a Y-shaped sclerite and having a long and thin virga-like sclerotised rachis inside a membranous invagination of the ventral fold); [3] Arachnocephalina Gorochov, 1984 possibly including all the other genera of this tribe (these genera are with a pair of ventrolateral lobes on the second tarsal segment and/or with the male genitalia more or less similar to those of Bothromogoplistina subtrib. nov.). One new genus with one new species (Bothromogoplistes paraproctalis gen. et sp. nov.) are described from a burrow in the arid territory of South Africa. This cricket is probably related to the genera Cycloptiloides Sjöstedt, 1910 and Eucycloptilum Chopard, 1936, but their males differ from each other in the pronotal length, the presence or absence of wings and tympana, and the shape of the paraprocts and genital plate. One species, Cycloptiloides parvum (Chopard, 1961), comb. nov., is transferred from Eucycloptilum to Cycloptiloides.


PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4720 ◽  
Author(s):  
Keiichi Kakui ◽  
Yoshihisa Fujita

We establish a new pseudozeuxid genusHaimormusgen. nov. based on a new speciesHaimormus shimojiensissp. nov. which was collected from a submarine limestone cave with the entrance at 35 m depth, in the Northwestern Pacific Ocean.H. shimojiensisdiffers from the other confamilial members,Pseudozeuxo belizensisSieg, 1982 andCharbeitanais spongicolaBamber & Bird, 1997, in having the pleonite 1 without the pleopod, the pereopods 2 and 3 propodus with a ventral spiniform seta, and the pereopods 4–6 propodus with one long and two short dorsodistal setae. A key to females of species of Pseudozeuxidae is presented. This is the first tanaidacean report from submarine caves around Japan.


Sign in / Sign up

Export Citation Format

Share Document