Middle Ordovician Drepanoistodus (Vertebrata, Conodonta) from Baltica, with description of three new species

Drepanoistodus basiovalis (Sergeeva, 1963) is a common conodont species in Middle Ordovician strata of Baltica. For many years it has been widely accepted that the species encompasses a wide range of morphological plasticity. Hence, several different morphotypes that significantly deviate from the holotype have nonetheless been included in the broad species concept. In this study, we performed a detailed taxonomical study on 112 predominantly well-preserved specimens (geniculate elements) from the St. Petersburg region of Russia; 37 of these were selected for morphometric analyses together with 21 well-illustrated specimens from the published literature. The results demonstrate that, among the morphotypes that share some characteristics with D. basiovalis sensu lato, at least five species can be readily distinguished. Hence, three new species – Drepanoistodus iommii sp. nov., D. svendi sp. nov. and D. viirae sp. nov. – are here added to the previously known D. basiovalis and D. contractus (Lindström, 1955). In addition, some specimens were left under open nomenclature and assigned to Drepanoistodus aff. basiovalis and D. cf. suberectus (Branson & Mehl, 1933). In order to objectively compare the Drepanoistodus taxa and test the validity of the new species, we performed a Principal Component Analysis combined with non-parametric (PERMANOVA) tests based on 21 morphological characters.

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Three new species, two new genera, and new family Biphragmosagittidae (Сhaetognatha) from Southwest Pacific Ocean

Zoosystematica Rossica ◽

10.31610/zsr/2011.20.1.161 ◽

2011 ◽

Vol 20 (1) ◽

pp. 161-173

Author(s):

A.P. Kassatkina

Keyword(s):

New Species ◽

Type Species ◽

Morphological Characters ◽

The Body ◽

New Order ◽

New Genera ◽

New Family ◽

The Family ◽

Three New Species

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.

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Taxonomy of Neomuscina Townsend (Diptera, Muscidae) from Brazil

Zootaxa ◽

10.11646/zootaxa.3504.1.1 ◽

2012 ◽

Vol 3504 (1) ◽

pp. 1 ◽

Cited By ~ 3

Author(s):

ALESSANDRE PEREIRA-COLAVITE ◽

CLAUDIO J. B. DE CARVALHO

Keyword(s):

New Species ◽

Species Distributions ◽

Morphological Characters ◽

Minas Gerais ◽

Identification Key ◽

Male And Female ◽

Number Of Species ◽

Three New Species ◽

New Distribution

Neomuscina Townsend includes 41 species distributed throughout the Nearctic and Neotropical Regions. Although the genus has a large number of species, it has been ignored and its taxonomy is confusing and has many flaws. In this work we analyzed the following species recorded for Brazil: Neomuscina atincta Snyder, N. atincticosta Snyder, N. capalta Snyder, N. currani Snyder, N. douradensis Lopes & Khouri, N. goianensis Lopes & Khouri, N. inflexa (Stein), N. instabilis Snyder, N. mediana Snyder, N. mimosa Lopes & Khouri, N. neosimilis Snyder, N. nigricosta Snyder, N. paramediana Lopes & Khouri, N. pictipennis pictipennis (Bigot), N. ponti Lopes & Khouri, N. sanespra Snyder, N. schadei Snyder, N. similata Snyder, N. stabilis (Stein), N. transporta Snyder, N. vitoriae Lopes & Khouri and N. zosteris (Shannon & Del Ponte). Neomuscina nigricosta and N. transporta are new distribution records for Brazil. Three new species are described: Neomuscina anajeensis sp. nov. from Anagé (Bahia), Neomuscina maculata sp. nov. from Botelhos (Minas Gerais) and Neomuscina snyderi sp. nov. from Mata de São João (Bahia). An identification key based on the morphological characters of both male and female is provided. Species distributions are discussed and updated, and the number of species now recorded for Brazil is 29.

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Nothing in (sponge) biology makes sense – except when based on holotypes

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315415000521 ◽

2015 ◽

Vol 96 (2) ◽

pp. 305-311 ◽

Cited By ~ 10

Author(s):

Dirk Erpenbeck ◽

Merrick Ekins ◽

Nicole Enghuber ◽

John N.A. Hooper ◽

Helmut Lehnert ◽

...

Keyword(s):

New Species ◽

Reference Material ◽

Species Identification ◽

Dna Sequences ◽

Morphological Plasticity ◽

Morphological Characters ◽

Molecular Techniques ◽

Reference Sequences ◽

Species Descriptions ◽

Preservation History

Sponge species are infamously difficult to identify for non-experts due to their high morphological plasticity and the paucity of informative morphological characters. The use of molecular techniques certainly helps with species identification, but unfortunately it requires prior reference sequences. Holotypes constitute the best reference material for species identification, however their usage in molecular systematics and taxonomy is scarce and frequently not even attempted, mostly due to their antiquity and preservation history. Here we provide case studies in which we demonstrate the importance of using holotype material to answer phylogenetic and taxonomic questions. We also demonstrate the possibility of sequencing DNA fragments out of century-old holotypes. Furthermore we propose the deposition of DNA sequences in conjunction with new species descriptions.

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Taxonomic revision of species of Haematoloechus Looss, 1899 (Digenea: Plagiorchioidea), with molecular phylogenetic analysis and the description of three new species from Mexico

Zootaxa ◽

10.11646/zootaxa.4526.3.1 ◽

2018 ◽

Vol 4526 (3) ◽

pp. 251 ◽

Cited By ~ 2

Author(s):

VIRGINIA LEÓN-RÈGAGNON ◽

JANET TOPAN

Keyword(s):

New Species ◽

Taxonomic Revision ◽

Morphological Characters ◽

Nomen Nudum ◽

Phylogenetic Hypothesis ◽

Molecular Phylogenetic ◽

Phylogenetic Hypotheses ◽

Three New Species ◽

Host Parasite ◽

Species Inquirendae

Lung flukes of the genus Haematoloechus Looss, 1899 are common parasites of anurans worldwide, but the taxonomy of the group has been confusing. In this taxonomic revision, 89 species of Haematoloechus (= Pneumonoeces Looss, 1902, Ostioloides Odening, 1960, Ostiolum Pratt, 1903, Skrjabinoeces Sudarikov, 1950, Neohaematoloechus Odening, 1960, Metahaematoloechus Yamaguti, 1971) are listed. Of these, 70 are considered valid, three are species inquirendae (H. legrandi Mañé–Garzón & Gil, 1959, H. latoricensis Kozák, 1968 & H. vitelloconfluentum (Rai, 1962) Saeed, Al–Barwari & Al-Harmni, 2007), one is a nomen nudum H. sudarikovi Belouss, 1962, 14 are junior synonyms and one belongs to Ostioloides. This publication also describes three new species, H. occidentalis n. sp., H. veracruzanus n. sp. and H. mexicanus n. sp., parasitizing species of Rana Linnaeus in Mexico and redescribes Haematoloechus caballeroi (Skrjabin & Antipin, 1962) Yamaguti, 1971. The phylogenetic hypotheses based on sequences of mitochondrial and ribosomal DNA of Haematoloechus spp. show that genera proposed on the basis of morphological characters are not supported. The host records for species of Haematoloechus, together with the phylogenetic hypothesis of the genus, suggest that this host-parasite association predates the ranid diversification in the Cretaceous.

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Taxonomic review of Colombian Parodon (Characiformes: Parodontidae), with descriptions of three new species

Neotropical Ichthyology ◽

10.1590/s1679-62252011000400003 ◽

2011 ◽

Vol 9 (4) ◽

pp. 709-730 ◽

Cited By ~ 3

Author(s):

Alejandro Londoño-Burbano ◽

César Román-Valencia ◽

Donald C. Taphorn

Keyword(s):

New Species ◽

River Basin ◽

Morphological Characters ◽

Valid Species ◽

Type Specimens ◽

River Drainage ◽

Distribution Maps ◽

Maracaibo Basin ◽

Three New Species ◽

Magdalena River

We review species of Parodon Valenciennes, 1850 from the Magdalena, Cauca, Orinoco, Amazonas, Atrato and Caribbean-Guajira River basins of Colombia using meristic and morphological characters. We recognize eight valid species, five previously described: P. apolinari Myers, from the Orinoco River basin; P. buckleyi Boulenger and P. pongoensis (Allen) from the upper Amazon; P. caliensis Boulenger, from the upper Cauca River drainage; and P. suborbitalis Valenciennes, from Lake Maracaibo basin. Three new species are described: P. alfonsoi, from the lower Magdalena River drainage; P. magdalenensis, from the middle Magdalena and upper Cauca River drainages; and P. atratoensis, from the Atrato River basin. We redescribe Parodon suborbitalis using type specimens and topotypes, and designate lectotypes. A taxonomic key is included for identification of the species, as well as geographic distribution maps.

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Salticidae (Arachnida, Araneae) of Thailand: new species and records of Epeus Peckham & Peckham, 1886 and Ptocasius Simon, 1885

PeerJ ◽

10.7717/peerj.9352 ◽

2020 ◽

Vol 8 ◽

pp. e9352

Author(s):

Barbara Maria Patoleta ◽

Joanna Gardzińska ◽

Marek Żabka

Keyword(s):

New Species ◽

Natural History ◽

Morphological Characters ◽

Natural History Museum ◽

Morphological Data ◽

History Museum ◽

Two New Species ◽

New Material ◽

Hungarian Natural History Museum ◽

Three New Species

The study is based on new material from the collections of the Naturalis Biodiversity Centre in Leiden (RNHM) and the Hungarian Natural History Museum (HNHM) and addresses issues in two genera: Epeus Peckham & Peckham, 1886 and Ptocasius Simon, 1885 from Thailand. Both genera are of Asian/Indomalayan origin, the latter with a diversity hotspot in the subtropical valleys of the Himalayas. Based on morphological data, we propose three new species of Epeus (Epeus daiqini sp. nov. (♂♀), Epeus pallidus sp. nov. (♀), Epeus szirakii sp. nov. (♀)) and two new species of Ptacasius (Ptocasius metzneri sp. nov. (♂♀) and Ptocasius sakaerat sp. nov. (♀)). Additionally, we redescribed E. tener (Simon, 1877) and added photographs of morphological characters. The genus Ptocasius is redefined due to the inclusion of 37 species, previously included in Yaginumaella Prószyński, 1979. Relationships and distribution of both genera are discussed in reference to molecular, morphological and distributional data, published by other authors in recent years.

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Three new species of the genus Coddingtonia from Asia (Araneae, Theridiosomatidae)

ZooKeys ◽

10.3897/zookeys.886.35492 ◽

2019 ◽

Vol 886 ◽

pp. 113-126

Author(s):

Chengcheng Feng ◽

Yucheng Lin

Keyword(s):

New Species ◽

Dna Sequences ◽

Morphological Characters ◽

Molecular Data ◽

Current Paper ◽

Distribution Map ◽

Three New Species

The current paper expands knowledge of the genus Coddingtonia Miller, Griswold & Yin, 2009. Based on morphological characters and molecular data, three species are documented as new to science: C. erhuan Feng & Lin, sp. nov. (♀) from China, C. lizu Feng & Lin, sp. nov. (♀) from China, and C. huifengi Feng & Lin, sp. nov. (♂♀) from Indonesia. The type of C. euryopoides Miller, Griswold & Yin, 2009 is also reexamined. DNA sequences (COI), detailed illustrations of habitus, male palp and epigyne are provided for these four species, as well as a key and a distribution map for Coddingtonia species.

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Review of Indian Allacta Saussure & Zehntner, 1895 (Blattodea: Ectobiidae: Pseudophyllodromiinae), with description of three new species

Zootaxa ◽

10.11646/zootaxa.4920.2.6 ◽

2021 ◽

Vol 4920 (2) ◽

pp. 254-266

Author(s):

M. SENRAJ ◽

S. MARIA PACKIAM ◽

S. PRABAKARAN ◽

CRISTIAN C. LUCANAS ◽

DEEPA JAISWAL

Keyword(s):

New Species ◽

Male Genitalia ◽

Morphological Characters ◽

Species Group ◽

Three New Species

The known species of Allacta Saussure & Zehntner, 1895 in India are reviewed. Three new species, A. jcenpro sp. nov., A. vellimalai sp. nov., and A. kollimalai sp. nov., are described. All are placed under hamifera species group. The new species can be differentiated from other members of hamifera species group by the pronotal and facial markings, the structure of the male genitalia and other morphological characters. Additional reports to A. kalakadensis Prabakaran & Senraj 2019 and A. figurata (Walker, 1871) are provided. A key to the known species of Indian Allacta is provided.

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Three new species of Leptanilloides Mann from Andean Ecuador (Formicidae: Leptanilloidinae)

Zootaxa ◽

10.11646/zootaxa.1201.1.2 ◽

2006 ◽

Vol 1201 (1) ◽

pp. 47 ◽

Cited By ~ 8

Author(s):

DAVID A. DONOSO ◽

JUAN M. VIEIRA ◽

ALEXANDER L. WILD

Keyword(s):

New Species ◽

Phenotypic Variation ◽

Morphological Characters ◽

Generic Diagnosis ◽

Army Ant ◽

First Case ◽

Three New Species ◽

Worker Caste

We report three new species of the ant genus Leptanilloides from Andean Ecuador. Leptanilloides nomada sp. n. and L. caracola sp. n. are described from the worker caste, the latter from a unique specimen; L. nubecula sp. n. is described from workers, males, and two gyne subcastes previously unknown for the entire subfamily. Phenotypic variation in morphological characters in the new species L. nomada and L. nubecula is more plastic than suggested by the traditional generic diagnosis. These records represent the first case of three Leptanilloides species occurring in sympatry. We discuss aspects of the army ant syndrome and its relevance to the genus Leptanilloides.Tres nuevas especies del género de hormigas Leptanilloides son descritas a partir de especimenes encontrados en Los Andes ecuatorianos. Leptanilloides nomada sp. n. y L. caracola sp. n. son descritas en base a obreras, ésta última es descrita a partir de un sólo espécimen. L. nubecula sp. n. es descrita en base a obreras, machos y dos subcastas de ginas previamente desconocidas para toda la subfamilia. La variación fenotípica encontrada en algunos caracteres morfológicos de las nuevas especies L. nomada y L. nubecula es más plástica de lo que sugiere la diagnosis genérica tradicional. Estos registros constituyen el primer ejemplo de tres especies de Leptanilloides viviendo en simpatría. Discutimos aspectos del síndrome de las hormigas legionarias y su aplicación al género Leptanilloides.

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Two new species of Helobdella Blanchard 1896 (Hirudinida: Rhynchobdellida: Glossiphoniidae) from Taiwan, with a checklist of hirudinea fauna of the island

Zootaxa ◽

10.11646/zootaxa.2068.1.2 ◽

2009 ◽

Vol 2068 (1) ◽

pp. 27-46 ◽

Cited By ~ 17

Author(s):

YI-TE LAI ◽

CHIH-HAN CHANG ◽

JIUN-HONG CHEN

Keyword(s):

New Species ◽

Ecological Impact ◽

Dna Barcode ◽

Morphological Characters ◽

Congeneric Species ◽

Two New Species ◽

Three New Species

In this study, two new species of Helobdella leeches, Helobdella octatestisaca n. sp. and Helobdella melananus n. sp., and a newly recorded species, Helobdella europaea, are reported. Morphological characters and DNA barcode analysis were used to identify the three new species. The differences between these species and other morphologically congeneric species were also compared. In addition, the potential ecological impact of these species was discussed and a checklist of the hirudinea fauna in Taiwan, including eight species in Family Glossiphoniidae, four in Hirudinidae, two in Haemopidae, two in Haemadipsidae, and two in Salifidae, was provided.

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