scholarly journals Taxonomic assessment of Leptodoras (Siluriformes: Doradidae) with descriptions of three new species

2005 ◽  
Vol 3 (4) ◽  
pp. 637-678 ◽  
Author(s):  
Mark Henry Sabaj
Keyword(s):  
New Species ◽  
Ventral Surface ◽  
Nominal Species ◽  
Lowland Rivers ◽  
Northern Half ◽  
Gill Filaments ◽  
Andean South America ◽  
Lateral Margins ◽  
Thorny Catfishes ◽  
Three New Species

The genus Leptodoras Boulenger is a monophyletic assemblage of at least ten species distributed in large, predominantly lowland rivers throughout the northern half of cis-Andean South America. Leptodoras is diagnosed in Doradidae (thorny catfishes) by unique morphologies of the oral hood (upper labial extensions distinct with comparatively smooth ventral surface, lateral margins of extensions entire, weakly scalloped or fimbriate and without marginal papillae, and interlabial membranes of narrow or moderate width), first gill arch (enlarged accessory lamellae extend well onto medial face of gill filaments), and gas bladder (reduced size and modified cordiform shape, two distinct horn-like diverticula project from posterior walls of posterior chambers, and a pair of bulbous diverticula project from lateral walls of anterior chamber). Examination of specimens of Leptodoras from throughout its range verified the distinctiveness of the seven nominal species (L. acipenserinus, L. copei, L. hasemani, L. juruensis, L. linnelli, L. myersi and L. praelongus) and revealed three new species described herein (Leptodoras nelsoni, L. rogersae, and L. cataniai). A lectotype for L. hasemani is designated.

The centipede genus Otostigmus Porat in Brazil: Description of three new species from the Atlantic Forest; a summary and an identification key to the Brazilian species of this genus (Chilopoda, Scolopendromorpha, Scolopendridae, Otostigminae)

Zootaxa ◽  
2012 ◽  
Vol 3280 (1) ◽  
pp. 1 ◽  
Author(s):  
AMAZONAS CHAGAS-JÚNIOR
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
The State ◽  
Junior Synonym ◽  
Identification Key ◽  
Nominal Species ◽  
Brazilian Atlantic Forest ◽  
Three New Species ◽  
First Time ◽  
New Distribution

Three new species of Otostigmus Porat, 1876 from Brazilian Atlantic Forest are described. Otostigmus beckeri sp. n. andO. lanceolatus sp. n. are described from the state of Bahia and O. giupponii sp. n. from the state of Espírito Santo. InBrazil, the otostigmine scolopendrid genus Otostigmus comprises 22 species. A summary of Brazilian Otostigmus speciesis presented with new distribution records, taxonomic remarks when appropriate and an identification key. Otostigmus sul-catus Meinert, 1886 is recorded for the first time from Brazil; the Andean Otostigmus silvestrii Kraepelin 1903, previouslyrecorded from Brazil, is here considered not to be present in this country. Eight nominal species are regarded here as newsynonyms. Five of them—Otostigmus pradoi Bücherl, 1939, O. longistigma Bücherl, 1939, O. longipes Bücherl, 1939,O. langei Bücherl, 1946 and O. dentifusus Bücherl, 1946—are based on females of O. tibialis Brölemann, 1902. O. latipesBücherl, 1954 is conspecific with and is considered a junior synonym of O. sulcatus Meinert, 1886; O. limbatus diminutusBücherl, 1946 is a junior synonym of O. limbatus Meinert, 1886 and O. fossulatus Attems, 1928 is a junior synonym of O. goeldii Brölemann, 1898. A lectotype is designated for O. goeldii.

scholarly journals Three new species of the genus Stephos Scott, 1892 (Crustacea, Copepoda, Calanoida, Stephidae) from Jeju Island, Korea

ZooKeys ◽  
2020 ◽  
Vol 944 ◽  
pp. 1-30
Author(s):  
Seong Yong Moon ◽  
Ho Young Soh ◽  
Dae Hyun Cho
Keyword(s):  
New Species ◽  
Body Length ◽  
Ventral Surface ◽  
Jeju Island ◽  
Shallow Waters ◽  
Terminal Complex ◽  
Field Surveys ◽  
General Field ◽  
Three New Species ◽  
Female Genital

During general field surveys carried out recently to collect benthopelagic copepods from near the substrate of the shallow waters off Jeju Island, Korea, a few specimens of three new species of Stephos Scott, 1892, were collected. The new species are placed in the genus Stephos because of the following combination of features: absence of seta on the basal exite of maxillule, and male right leg 5 ending in an unarmed claw-like and/or mitten-like segment. Stephos jejuensissp. nov. can be distinguished from its congeners by body length 0.92 mm, left side of the female genital double-somite with protruding lobes, antennule that extends beyond the distal area of the genital double-somite, and the male leg 5 terminal complex. Stephos concavussp. nov. can be distinguished from its congeners by the genital double-somite with protruding lobes on both sides, and the presence of larger spinules on the distomedial margin of leg 5. Stephos fortipessp. nov. can be distinguished from its congeners by its longer body length, 1.12 mm long in the female, antennules that extend to the end of the genital double-somite, and the presence of a covered row of minute spinules on the ventral surface of the genital operculum in the female. Until now, 35 species of stephids were known worldwide.

scholarly journals Review of the fish parasitic genus Elthusa Schioedte & Meinert, 1884 (Crustacea, Isopoda, Cymothoidae) from South Africa, including the description of three new species

ZooKeys ◽  
2019 ◽  
Vol 841 ◽  
pp. 1-37 ◽  
Author(s):  
Serita van der Wal ◽  
Nico J. Smit ◽  
Kerry A. Hadfield
Keyword(s):  
South Africa ◽  
New Species ◽  
Natural History ◽  
South African ◽  
Body Shape ◽  
Anterior Margin ◽  
National Museum ◽  
Worldwide Distribution ◽  
Lateral Margins ◽  
Three New Species

The branchial-attaching cymothoid genus, Elthusa Schioedte & Meinert, 1884 is a genus with a worldwide distribution of 36 species, including the three species described here. Elthusaraynaudii (Milne Edwards, 1840) is the only species that has been described from southern Africa. All South African material held at the National Museum of Natural History, Paris, France (MNHN) and the Iziko South African Museum, Cape Town (SAMC) identified as, or appearing to belong to, Elthusa was examined. Four species were identified, Elthusaraynaudii and three species that proved to be undescribed. Elthusaxenasp. n. can be distinguished by an evenly rounded pereonite 1 anterior margin, a roughly rectangular pleotelson, and narrowly rounded uropod apices that extend to more than half the length of the pleotelson. Elthusaacutinasasp. n. is identified by the produced and narrowly rounded cephalon anterior margin, acute uropods that are shorter than half the length of the pleotelson, and pereonite 1 anterior margin with medial projection. Elthusarotundasp. n. is characterised by the round body shape, broadly rounded uropod apices, and protrusions on the proximal and lateral margins of the merus and carpus of pereopod 7. A key to the South African Elthusa species is provided, together with a table summarising the hosts and localities of the 33 previously known species of Elthusa.

The Culex Mosquitoes (Diptera: Culicidae) of French Guiana: A Comprehensive Review With the Description of Three New Species

2020 ◽  
Author(s):  
Stanislas Talaga ◽  
Jean-Bernard Duchemin ◽  
Romain Girod ◽  
Isabelle Dusfour
Keyword(s):  
New Species ◽  
French Guiana ◽  
Mosquito Species ◽  
Nominal Species ◽  
Vector Species ◽  
Comprehensive Review ◽  
Future Studies ◽  
Bibliographic Data ◽  
Voucher Specimens ◽  
Three New Species

Abstract The taxonomically intricate genus Culex Linnaeus includes numerous known vector species of parasites and viruses to humans. The aim of this article is to comprehensively review the Culex species which occur in French Guiana to provide a stronger taxonomic foundation for future studies on this genus in South America. The occurrence of Culex species was investigated in light of current taxonomic knowledge through an extensive examination of voucher specimens deposited in the entomological collections of four French depositories and additional specimens recently collected at various localities in French Guiana. Based on this review, 104 Culex species classified in eight subgenera are confirmed to occur in French Guiana. Compared to the most recent checklist, 18 species are added, and 10 species excluded, resulting in a total number of 242 valid mosquito species known to occur in French Guiana. Three nominal species are synonymized, three others are newly described, and a last one is transferred to another informal infrasubgeneric group. Overall, this review also highlights the limits of the use of only bibliographic data when dealing with taxonomically complex groups of insects.

Cephenniini of the Philippines. Part 5. Three new species of Cephennomicrus Reitter (Coleoptera, Staphylinidae, Scydmaeninae)

Zootaxa ◽  
2021 ◽  
Vol 4975 (3) ◽  
pp. 592-598
Author(s):  
PAWEŁ JAŁOSZYŃSKI
Keyword(s):  
New Species ◽  
The Philippines ◽  
Nominal Species ◽  
Three New Species

Cephennomicrus Reitter of the Philippines is exceptionally poorly known, with only four nominal species recorded so far, two on Luzon, one on Palawan, and one on Leyte. Three more new species are described: C. palawanicus sp. n. (Palawan), C. impressus sp. n. (Palawan), and C. lagunensis sp. n. (Luzon). The latter species is unusual among all congeners in having a monstrously elongate aedeagus, longer than the abdomen. 

A new genus and new species of Edessinae (Hemiptera: Heteroptera: Pentatomidae)

Zootaxa ◽  
2018 ◽  
Vol 4377 (2) ◽  
pp. 254
Author(s):  
FLAVIO ROBERTO DE ALBUQUERQUE ALMEIDA ◽  
BENEDITO MENDES NUNES ◽  
JOSE ANTONIO MARIN FERNANDES
Keyword(s):  
New Species ◽  
Time Distribution ◽  
New Genus ◽  
Ventral View ◽  
Ventral Surface ◽  
Distribution Map ◽  
Internal Genitalia ◽  
Heteroptera Pentatomidae ◽  
Three New Species ◽  
First Time

The genus Plagaedessa gen. n. is proposed to accommodate four species: Edessa celsa Distant and three new species: P. distanti sp. n., P. nigrovittata sp. n. and P. maranhensis sp. n. The new genus is characterized by the antennae black with the antennomer I showing a yellow spot on ventral surface, legs yellow with femora and tibiae showing two or three longitudinal black stripes, gonapophysis 9 with a sclerotized area bearing a protuberance close to gonocoxites 9 and pygophore with black posterolateral angles strongly developed. Diagnosis, illustrations of the metasternal process and external and internal genitalia, photographs of the dorsal and ventral view, and a distribution map are provided. A key to the genera of Edessinae and subgenera of Edessa, and a key to the species of Plagaedessa are also provided. Male and female genitalia of Plagaedessa celsa n. comb. are described for the first time. Distribution of P. celsa is extended to Costa Rica and Mexico. The lectotype of Edessa celsa is here designated. 

On some miscellaneous sea cucumbers (Echinodermata: Holothuroidea) in the collections of the South African Museum with three new species

Zootaxa ◽  
2018 ◽  
Vol 4532 (1) ◽  
pp. 57 ◽  
Author(s):  
AHMED S. THANDAR
Keyword(s):  
New Species ◽  
South African ◽  
New Records ◽  
Nominal Species ◽  
Eastern Cape Province ◽  
Eastern Cape ◽  
African Region ◽  
Distribution Ranges ◽  
Three New Species ◽  
A New Species

A miscellaneous collection of mostly small holothuroids, comprising some 140 specimens, received from the Iziko South African Museum (SAM), are here recorded and/or briefly described. Of these, one jar contained a badly mutilated holothuroid which was unidentifiable and hence not included here. The remaining material comprises 18 nominal species and an indeterminate elasipodid, perhaps representing a species of Benthodytes. Of the 18 nominal species, four are new to science, one of which has already been described as Trachythyone flaccida Thandar, 2013. Another, although represented by a single mature specimen from deep-water off the Transkei coast (Eastern Cape Province), is so different from its congeners that it is also described as a new species, Stereoderma mohammedi n. sp. Two other specimens, although juvenile, are so extraordinary in their composition of ossicles, that they are also taken to represent another new species, ?Temparena trouspetita n. sp. The collection also includes a single specimen of Synallactes, which together with a specimen misidentified as S. viridilimus by Thandar (2008), is also described as a new species, S. quatrami n. sp. The remaining species proved to be either new records for the southern African region or already well-known southern African forms whose distribution ranges have now changed. 

Comparative morphology and descriptions of three new species of Teratocephalus from Canada

1969 ◽  
Vol 47 (5) ◽  
pp. 829-840 ◽  
Author(s):  
R. V. Anderson
Keyword(s):  
New Species ◽  
Comparative Morphology ◽  
The Body ◽  
Nominal Species ◽  
Reproductive Systems ◽  
Taxonomic Key ◽  
Three New Species ◽  
De Man

Three new species of soil-inhabiting nematodes, Teratocephalus decarinus, T. subvexus, and T. lirellus, are described. Contour and inclination of cephalic plicae, relative development of the cervical expansion, character of the body annules, number of longitudinal body ridges, and size of the metarhabdions are considered useful taxonomic characters. Morphology of the head, excretory and reproductive systems, and the cuticle is discussed and compared. All females have two uteri and bifurcated tail termini, which have not been reported previously for any known species in this genus. A taxonomic key to the nominal species is presented. T. demani Stefański, 1924 is transferred to Euteratocephalus Andrássy, 1958. T. terrestris, after De Coninck (1935), is regarded as different from T. terrestris (Bütschli, 1873) de Man, 1876 and is named T. deconincki.

Lacydoniidae Bergström, 1914 (Polychaeta) in the South Atlantic: morphology, three new species and five new records

2015 ◽  
Vol 96 (6) ◽  
pp. 1265-1285
Author(s):  
Alexandra E. Rizzo ◽  
Wagner F. Magalhães ◽  
Cinthya S.G. Santos
Keyword(s):  
New Species ◽  
New Records ◽  
Morphological Characters ◽  
South Atlantic ◽  
Nominal Species ◽  
The South ◽  
Campos Basin ◽  
Polychaete Family ◽  
Three New Species ◽  
Species Descriptions

LacydoniaMarion & Bobretzky in Marion, 1874 is the only known genus in Lacydoniidae Bergström, 1914, which is composed of small polychaetes scarcely sampled. Studies on the biology and ecology of this group are rare and most species descriptions are based on one or a few specimens. There are 13 nominal species from different parts of the world. We revise herein the morphological characters used for species description on the basis of a lacydoniid assemblage collected in Campos Basin, Southern Brazil. Material was obtained in two sampling campaigns during the Project Habitats/Petrobras – Heterogeneidade Ambiental da Bacia de Campos, coordinated by CENPES/Petrobras. Lacydoniids were collected from the continental shelf, canyons and slope, at depths from 25 to 2500 m. This polychaete family is recorded for the first time in Brazilian waters, three new species are described and all others are new records to the South Atlantic. The new species areLacydonia anapaulaesp. nov.,L. brasiliensissp. nov. andL. jackisp. nov. Newly recorded species areL. cirrata(Hartman & Fauchald, 1971),L. laureciLaubier, 1975,L. mirandaMarion & Bobretzky in Marion, 1874,L. oculata(Hartman, 1967) andL. cf.papillataUschakov, 1958. An updated key to all described species ofLacydoniais included.

scholarly journals Redescription of the type species of Odontostilbe Cope, 1870 (Teleostei: Characidae: Cheirodontinae), and description of three new species from the Amazon basin

2006 ◽  
Vol 4 (2) ◽  
pp. 167-196 ◽  
Author(s):  
Cristina M. Bührnheim ◽  
Luiz R. Malabarba
Keyword(s):  
New Species ◽  
Type Species ◽  
Amazon Basin ◽  
Nominal Species ◽  
Sexually Dimorphic ◽  
Gill Rakers ◽  
Three New Species ◽  
Gill Raker ◽  
First Time ◽  
Rio Madeira

The widespread Neotropical cheirodontine Odontostilbe fugitiva is reviewed, and three new species of the genus are described from the Amazon basin. A neotype is designated for O. fugitiva, from the mouth of the río Mazán, upper río Amazonas basin, Peru. Three nominal species are herein considered as synonyms of O. fugitiva: O. madeirae, O. drepanon, and O. caquetae. The three new species are respectively O. ecuadorensis from the río Napo basin, O. nareuda from the rio Madeira basin, and O. parecis from the rio Guaporé basin (rio Madeira basin). Among other diagnostic characters, gill rakers are especially informative in distinguishing species. Description of gill raker denticulation is provided for the first time for species of the Cheirodontinae. Secondary sexually dimorphic characters are described for all species.

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