scholarly journals Productidinid brachiopods (Strophomenata, Productida), including Martinezchaconia luisae new genus and new species of Linoproductidae, from the Carboniferous of Santiago Ixtaltepec region, Oaxaca, Southeast México

2018 ◽  
Vol 33 (1) ◽  
pp. 205
Author(s):  
Miguel A. TORRES-MARTÍNEZ ◽  
Francisco SOUR-TOVAR
Keyword(s):  
New Species ◽  
New Genus ◽  
New Genus And Species ◽  
Southern Mexico ◽  
The North ◽  
Middle Mississippian ◽  
Index Species ◽  
The Family ◽  
Southeast Mexico

We describe three brachiopod species of the Suborder Productidina from the Ixtaltepec Formation, Carboniferous of the north of Oaxaca State, southern Mexico, found in peri-reef deposits. Stegacanthia bowsheri and Undaria sp. are members of the families Sentosiidae and Monticuliferidae respectively and were found in strata of the Visean (Middle Mississippian). Martinezchaconia luisae, new genus and species of the Family Linoproductidae, was recollected in Bashkirian-Moscovian (Lower-Middle Pennsylvanian) strata. The respective ages are inferred from the index species of brachiopods associated with the productidines herein described.

Cassiavellia galtarae, new species, new genus: a new Permian bivalve and its significance for pterioidean systematics

2010 ◽  
Vol 84 (6) ◽  
pp. 1152-1176 ◽  
Author(s):  
Ilya Tëmkin ◽  
John Pojeta
Keyword(s):  
New Species ◽  
New Genus ◽  
Larval Shell ◽  
Upper Permian ◽  
Taxonomic Significance ◽  
New Genus And Species ◽  
The Family ◽  
Dental Ontogeny

An exceptionally well-preserved silicified bivalve from the Upper Permian of Texas is described and assigned to a new genus and species,Cassiavellia galtarae, placed in the family Bakevelliidae. The species represents one of the earliest and best characterized unequivocal occurrences of the multivincular ligament in the superfamily Pterioidea. The silicified material provides a wealth of information on the morphology of inadequately known Paleozoic pterioideans, including hitherto undescribed aspects of the larval shell, auricular sulcus, muscle scars, and dental ontogeny. The discovery of the condyle-fossa complex on the anteroventral shell margin, a feature previously undescibed in Bivalvia, raises the question of the homology and taxonomic significance of the problematic subumbonal ridge-like structures in Pterioidea. In life,C. galtaraewas probably an epifaunal right-pleurothetic bivalve, byssally attached to hard or raised flexible substrata. In addition toC. galtarae, another new species,C. nadkevnae, is placed inCassiavellia.

A new scale insect of the extinct family Weitschatidae (Insecta: Hemiptera: Coccomorpha) from mid-Cretaceous Burmese amber

Zootaxa ◽  
2018 ◽  
Vol 4407 (3) ◽  
pp. 427
Author(s):  
SHAN LIN ◽  
YUNZHI YAO ◽  
DONG REN
Keyword(s):  
New Species ◽  
New Genus ◽  
Scale Insect ◽  
Identification Key ◽  
New Genus And Species ◽  
Key To Species ◽  
Burmese Amber ◽  
Fossil Specimen ◽  
The Family

A new genus and species of the extinct family Weitschatidae, Criniverticillus longicumulus gen. et sp. nov. (Hemiptera: Coccomorpha), is described and illustrated from mid-Cretaceous Burmese amber. The new species is based on a fossil specimen with complete body, wings and antennae. The family diagnosis is updated to include similarities between Criniverticillus, Pseudoweitschatus and Weitschatus. An identification key to species of Weitschatidae is provided. 

Silurian Ramphoprionid polychaetes from Gotland, Sweden

2001 ◽  
Vol 75 (5) ◽  
pp. 993-1015 ◽  
Author(s):  
Mats Eriksson
Keyword(s):  
New Species ◽  
New Genus ◽  
Morphological Changes ◽  
Original Description ◽  
Surface Structures ◽  
New Genus And Species ◽  
Gradual Evolution ◽  
The Family ◽  
Stratigraphic Ranges ◽  
Stratigraphic Range

Silurian ramphoprionid polychaete annelids, represented by their jaws (scolecodonts), are described from extensive collections from Gotland, Sweden. The family Ramphoprionidae, monotypic at its original description, is sub-divided into four genera; Protarabellites Stauffer, 1933; Ramphoprion Kielan-Jaworowska, 1962; “Pararamphoprion” Männil and Zaslavskaya, 1985; and Megaramphoprion new genus. Identified species include “P.” cf. nordicus Männil and Zaslavskaya, 1985; P. rectangularis new species; P. staufferi new species; P. triangularis new species; and two Protarabellites species left in open nomenclature. Ramphoprion is represented by one new highly plastic species, R. gotlandensis, housing five distinguishable morphotypes showing gradual evolution. Megaramphoprion, which is most closely related to Ramphoprion, is represented by M. magnus new genus and species, a rare but distinctive taxon. Most species have long stratigraphic ranges within which important morphological changes can nonetheless be observed. The stratigraphic range of ramphoprionids includes, at least, the Ordovician to the Silurian. They are fairly rare in the Silurian of Gotland and where present they generally form less than 10 percent of the polychaete faunas, although occasionally reaching as much as 20 to 30 percent. Evolution, paleoecology, and surface structures of the investigated species are briefly discussed.

A revision of the Heatherellidae (Parasitiformes: Mesostigmata) with a new genus and two new species from Australasia

Zootaxa ◽  
2018 ◽  
Vol 4434 (3) ◽  
pp. 441
Author(s):  
OWEN D. SEEMAN ◽  
MARIA MINOR ◽  
MICHELLE R. BAKER ◽  
DAVID EVANS WALTER
Keyword(s):  
New Species ◽  
New Zealand ◽  
Sexual Dimorphism ◽  
New Genus ◽  
New South ◽  
New South Wales ◽  
The North ◽  
South Wales ◽  
The Family ◽  
Two New Species

The discovery of a new genus of Heatherellidae in New Zealand has led us to revise this enigmatic family and its constituent genera. Aheatherella n. gen., based on A. mira n. sp. from the North Island of New Zealand, lacks some of the derived character states that link the Australian Heatherella, most notably the lack of sexual dimorphism in the dorsal shields and in the presence of peritremes in adult Aheatherella. Heatherella osleri n. sp. is described from New South Wales, extending the distribution of this genus beyond Queensland. New collection records of H. callimaulos and a key to the genera and species of the family are provided. We propose that the Heatherellidae—previously placed in its own cohort outside the Gamasina—are best considered a superfamily of gamasine mites within the subcohort Epicriiae. 

Calathiscus tantillus, a new genus and new species of scleractinian coral (Scleractinia, Poritidae) from the Gulf of Oman

Zootaxa ◽  
2004 ◽  
Vol 532 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHEL R. CLAEREBOUDT ◽  
ISSA S. AL-AMRI
Keyword(s):  
New Species ◽  
New Genus ◽  
Growth Form ◽  
North Coast ◽  
Sultanate Of Oman ◽  
Oral Disc ◽  
Gulf Of Oman ◽  
The North ◽  
Massive Growth ◽  
The Family

Calathiscus tantillus new genus & new species (Scleractinia, Poritidae) is described from several specimens collected along the north coast of the Sultanate of Oman and Masirah Island. The zooxanthellate genus has a massive growth form, although colonies remain very small (< 40 mm). The skeletal characteristics are intermediate between Porites and Goniopora, with calices averaging 1.7 mm in diameter. The polyps, fully extended during the day in most specimens, have a long tubular column topped by a wide conical oral disc surrounded by 15 22 tentacles. The characteristics of this new species and genus are discussed in relation to other genera in the family: Porites, Goniopora, Stylarea, Alveopora and Poritipora.

Octomagelona bizkaiensis (Polychaeta: Magelonidae) a new genus and species from the Capbreton Canyon (Bay of Biscay, north-east Atlantic)

2001 ◽  
Vol 81 (2) ◽  
pp. 221-224 ◽  
Author(s):  
Florencio Aguirrezabalaga ◽  
Argiloa Ceberio ◽  
Dieter Fiege
Keyword(s):  
New Genus ◽  
Bay Of Biscay ◽  
New Genus And Species ◽  
East Atlantic ◽  
North East ◽  
The North ◽  
The Family ◽  
North Eastern

Octomagelona bizkaiensis (Annelida: Polychaeta), a new genus and species of the family Magelonidae is described from the north-eastern Atlantic. The specimens were collected from the Capbreton Canyon, Bay of Biscay, at a depth of 1000–1040 m. The new genus and species differs from all known genera and species of the family Magelonidae by the presence of eight instead of nine thoracic chaetigers.

Description of a new genus and species (Eutardigrada: Richtersiidae) from Colombia, with comments on the family Richtersiidae

Zootaxa ◽  
2020 ◽  
Vol 4822 (4) ◽  
pp. 531-550 ◽  
Author(s):  
OSCAR LISI ◽  
ROSANA LONDOÑO ◽  
SIGMER QUIROGA
Keyword(s):  
New Species ◽  
New Genus ◽  
New Genus And Species ◽  
Anterior Portion ◽  
The Family

The new genus of the macrobiotoid family Richtersiidae Guidetti, Rebecchi, Bertolani, Jönsson, Kristensen & Cesari, 2016 Crenubiotus gen. nov. is described, based on Crenubiotus crenulatus comb. nov. (Richters, 1904a) and on Colombian specimens formerly attributed to Macrobiotus cf. crenulatus and here described, after re-examination, as Crenubiotus revelator sp. nov. The new genus is characterised by an additional ventral thickening on the anterior portion of the ventral lamina, dorsal apophysis absent or very reduced, modified stylet furcae, claws equal in structure to those of Richtersius Pilato & Binda, 1989, and very probably also Adorybiotus Maucci & Ramazzotti, 1981 and Diaforobiotus Guidetti, Rebecchi, Bertolani, Jönsson, Kristensen & Cesari, 2016; and, in the known species, cuticular pores, two macroplacoids, large well dentate lunules and a characteristic egg. The new species Crenubiotus revelator sp. nov. differs from Crenubiotus crenulatus comb. nov. in having smaller cuticular pores, a medio-ventral tooth in the buccal armature, more slender buccal tube, slightly more caudal stylet supports, slightly more slender claws, and in details of the egg. The description of the new genus, and new observations on Adorybiotus, Richtersius and Diaforobiotus, allowed the authors to complete the morphological scenario within the family Richtersiidae giving further support to such family. 

The new genus Acrocephalomyia, and a new species of Ropalomera from Costa Rica, with additional records for other Mesoamerican species (Diptera: Ropalomeridae)

Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 553-569 ◽  
Author(s):  
SERGIO IBÁÑEZ-BERNAL ◽  
VICENTE HERNÁNDEZ-ORTIZ
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Central America ◽  
New Taxa ◽  
New Genus ◽  
The Body ◽  
New Genus And Species ◽  
The Family ◽  
Forward Projection ◽  
A New Species

New taxa of the family Ropalomeridae from Costa Rica are described, and additional records of ropalomerid flies fromMexico and Central America are provided. The new genus and species Acrocephalomyia zumbadoi can be easily distin-guished from all other ropalomerid genera by the following combination of characters: angular forward projection of head,absence of ocelli, flat face, bare arista, long scutum, and scutellum triangular-shaped and dorsally flattened with only onepair of apical bristles with bases approximated. The new species Ropalomera aterrima can be recognized from congenersby remarkable differences of the head, the shape of the scutellum, the absence of scutal vittae, fumose wings, and by theblack coloration of the body, ocellar bristles large, one postpronotal bristle, scutum without pollinose vittae and flat scutellum. Lenkokroeberia chryserea Prado and Kroeberia fuliginosa Lindner are newly confirmed for Costa Rica.

scholarly journals A new genus and species of pinworm (Nematoda, Oxyuridae) from the gray mouse opossum, Tlacuatzin canescens

Parasite ◽  
2019 ◽  
Vol 26 ◽  
pp. 50
Author(s):  
F. Agustín Jiménez ◽  
Juan Manuel Caspeta-Mandujano ◽  
Sergio Albino-Miranda
Keyword(s):  
New Species ◽  
Small Area ◽  
New Genus ◽  
Dry Forest ◽  
The Other ◽  
New Genus And Species ◽  
American Museum ◽  
The Family ◽  
Unique Clade ◽  
Deciduous Dry Forest

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.

New subfamilies and a new genus and species of Melithaeidae (Coelenterata: Octocorallia: Alcyonacea) with comparative data on the structure of both melithaeid and subergorgiid axes

Zootaxa ◽  
2006 ◽  
Vol 1199 (1) ◽  
pp. 19-47 ◽  
Author(s):  
PHILIP ALDERSLADE
Keyword(s):  
New Species ◽  
Electron Micrographs ◽  
New Genus ◽  
Comparative Data ◽  
Scanning Electron Micrographs ◽  
New Genus And Species ◽  
The Family ◽  
Scanning Electron

Asperaxis karenae, a new genus and new species of the gorgonian family Melithaeidae, is described. The coenenchymal sclerites of the new genus bear similarities to those of Acabaria, but the axis is quite different from that which is characteristic of the family. The axial sclerites are rods and sticks, often sinuous and branched, with simple, sparse, tubercles. The internodes may be whole or partial, and are not clearly delimited from the internodes. A new subfamily, Asperaxinae, is proposed to accommodate any taxa with the new axial characters, and the Melithaeinae for the existing nominal taxa. The structure of both axial forms and the subergorgiid axis are illustrated with scanning electron micrographs.

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