Glossing over cryptic species: Descriptions of four new species of Glossodoris and three new species of Doriprismatica (Nudibranchia: Chromodorididae)

Zootaxa ◽  
2018 ◽  
Vol 4444 (5) ◽  
pp. 501 ◽  
Author(s):  
SHAYLE B. MATSUDA ◽  
TERRENCE M. GOSLINER
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Color Pattern ◽  
System Support ◽  
Species Complexes ◽  
Molecular Phylogenetic ◽  
Geographic Differences ◽  
Three New Species ◽  
Species Descriptions ◽  
Pseudocryptic Species

Advances in molecular systematics have led to a rapid increase in the identification of cryptic and pseudocryptic species in organisms exhibiting diverse and complex coloration with complicated taxonomic histories. A recent molecular phylogenetic analysis of nudibranchs in the genus Glossodoris (Mollusca: Gastropoda: Heterobranchia: Chromodorididae) and related genera identifies multiple cryptic and pseudocryptic species complexes, one within Glossodoris pallida and three within Glossodoris cincta, and support for three new species of Doriprismatica. Morphological analyses of color pattern, radular structure, buccal mass, and reproductive system support these identifications. Descriptions for Glossodoris buko sp. nov., Glossodoris bonwanga sp. nov., Glossodoris andersonae sp. nov., Glossodoris acosti sp. nov., and what will retain the name Glossodoris sp. cf. cincta are provided here, in addition to descriptions for new species Doriprismatica balut sp. nov., Doriprismatica rossi sp. nov., and Doriprismatica marinae sp. nov.. Glossodoris pallida and G. buko exhibit extreme differences in radular structure in addition to a clear biogeographic split in range. Glossodoris bonwanga, G. andersonae, G. acosti and G. sp. cf. cincta, share morphological and geographic differences but these are not as pronounced as in G. pallida and G. buko. More detailed study of the G. cincta complex is necessary to resolve some remaining systematic challenges. Doriprismatica balut is clearly distinct from all other congeners based on molecular and morphological characters. In contrast, D. rossi and D. marinae are not strongly divergent genetically, but have major morphological divergences that clearly distinguish them.  

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

Zootaxa ◽  
2018 ◽  
Vol 4526 (3) ◽  
pp. 251 ◽  
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. 

scholarly journals Integrative taxonomy reveals two new cryptic species of Hyphessobrycon Durbin, 1908 (Teleostei: Characidae) from the Maracaçumé and middle Tocantins River basins, Eastern Amazon region

2020 ◽  
Vol 723 ◽  
pp. 77-107
Author(s):  
Erick Cristofore Guimarães ◽  
Pâmella Silva De Brito ◽  
Pedro Henrique Negreiros Bragança ◽  
Jadson Pinheiro Santos ◽  
Axel Makay Katz ◽  
...  
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
Morphological Characters ◽  
Molecular Data ◽  
Color Pattern ◽  
Integrative Taxonomy ◽  
The Body ◽  
Dorsal Fin ◽  
Two New Species ◽  
Molecular Phylogenetic

Two new species, Hyphessobrycon frickei Guimarães, Brito, Bragança, Katz & Ottoni sp. nov. and H. geryi Guimarães, Brito, Bragança, Katz & Ottoni sp. nov., are herein described, based on seven different and independent species delimitation methods, and on molecular and morphological characters, making the hypothesis of these new species supported from an integrative taxonomy perspective. They belong to the “Rosy tetra” clade, which is mainly characterized by the presence of a dark brown or black blotch on the dorsal fin and the absence of a midlateral stripe on the body. These two new species are distinguished from the other members of this clade mainly by the arrangement, shape and color pattern of humeral and dorsal-fin spots, as well as by other characters related to scale counts and body pigmentation. The placement of the new species within the “Rosy tetra” clade was based on the combination of morphological character states mentioned above and corroborated by a molecular phylogenetic analysis using the mitochondrial gene cytochrome oxidase subunit 1. In addition, a new clade (here termed Hyphessobrycon copelandi clade) within the “Rosy tetra” clade is proposed based on molecular data, comprising H. copelandi, H. frickei sp. nov., H. geryi sp. nov. and a still undescribed species. Our results corroborate the occurrence of hidden species within the “Rosy tetra” clade, as suggested by previous studies.

Three new species of Lycianthes (Solanaceae) from Panama

Phytotaxa ◽  
2020 ◽  
Vol 471 (2) ◽  
pp. 113-126
Author(s):  
ELLEN DEAN ◽  
JENNIFER POORE ◽  
HANNAH KANG
Keyword(s):  
New Species ◽  
El Salvador ◽  
Cloud Forest ◽  
Morphological Characters ◽  
Similar Species ◽  
Forest Species ◽  
Woody Vines ◽  
Bocas Del Toro ◽  
Three New Species ◽  
Species Descriptions

Three Panamanian cloud forest species in the genus Lycianthes are newly described: L. coloradensis, from the Ngäbe-Buglé Comarca; L. fortunensis from Chiriquí Province, Veraguas Province, and the Ngäbe-Buglé Comarca; and L. talamancensis from Bocas del Toro and Chiriquí provinces. All three species are woody vines with tan, yellow, or orange-brown multangulate-stellate trichomes and entire to nearly entire white to purple corollas. In terms of vegetative morphology and trichome characteristics, L. coloradensis most closely resembles L. purpusii of Mexico, Guatemala, and Honduras, L. fortunensis resembles the widespread L. multiflora, and L. talamancensis resembles L. hortulana of Honduras, El Salvador, and Nicaragua. This article provides species descriptions, maps of geographic distributions, specimen images of each species, and comparison tables of morphological characters used to separate L. coloradensis, L. fortunensis and L. talamancensis from similar species.

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 A new cryptic species of Hyphessobrycon Durbin, 1908 (Characiformes, Characidae) from the Eastern Amazon, revealed by integrative taxonomy

2019 ◽  
Vol 95 (2) ◽  
pp. 345-360 ◽  
Author(s):  
Erick Cristofore Guimarães ◽  
Pâmella Silva de Brito ◽  
Leonardo Manir Feitosa ◽  
Luis Fernando Carvalho Costa ◽  
Felipe Polivanov Ottoni
Keyword(s):  
New Species ◽  
Cryptic Species ◽  
Mitochondrial Gene ◽  
Molecular Data ◽  
Color Pattern ◽  
Integrative Taxonomy ◽  
The Body ◽  
Phylogenetic Position ◽  
Species Complexes ◽  
Molecular Phylogenetic

Hyphessobryconcarusp. nov. is described based on five different and independent methods of species delimitation, making the hypothesis of this new species supported by an integrative taxonomy perspective. This new species has a restricted distribution, occurring just in the upper Pindaré river drainage, Mearim river basin, Brazil. It is a member of the rosy tetra clade, which is characterized mainly by the presence of a dark brown or black blotch on dorsal fin and absence of a midlateral stripe on the body. Hyphessobryconcarusp. nov. is distinguished from the members of this clade mainly by the shape of its humeral spot, possessing few irregular inconspicuous vertically arranged chromatophores in the humeral region, or sometimes a very thin and inconspicuous humeral spot, and other characters related to teeth count, and color pattern. The phylogenetic position of the new species within the rosy tetra clade was based on molecular phylogenetic analysis using sequences of the mitochondrial gene cytochrome oxidase subunit 1. In addition, a new clade (here termed Hyphessobryconmicropterus clade) within the rosy tetra clade is proposed based on molecular data, comprising H.carusp. nov., H.micropterus, H.piorskii, and H.simulatus, and with H.carusp. nov. and H.piorskii recovered as sister species. Our results suggest cryptic speciation in the rosy tetra clade and, more specifically, in the H.micropterus clade. We recommend the use of integrative taxonomy for future taxonomic revisions and species descriptions when dealing with species complexes and groups containing possible cryptic species.

A taxonomic revision of the hover wasp genus Eustenogaster van der Vecht (Insecta: Hymenoptera; Vespidae, Stenogastrinae)

Zootaxa ◽  
2007 ◽  
Vol 1556 (1) ◽  
pp. 1-30 ◽  
Author(s):  
FUKI SAITO ◽  
JUN-ICHI KOJIMA
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Southern China ◽  
Taxonomic Status ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Key To Species ◽  
Three New Species ◽  
Species Descriptions

A taxonomic revision is given for the stenogastrine genus Eustenogaster van der Vecht, 1969, which is distributed from India to Southeast Asia and southern China. A total of 15 species, including three new species (E. fumipennis Saito, sp. nov., E. latebricola Saito, sp. nov. and E. spinicauda Saito, sp. nov.), are recognized in the genus. A key to species, descriptions of the new species, and notes on taxonomic status, morphological characters and distribution records of the previously described taxa are given.

New species and phylogeny of landhoppers in the genus Waematau Duncan, 1994 (Crustacea: Amphipoda: Talitridae) from northern New Zealand

Zootaxa ◽  
2017 ◽  
Vol 4306 (2) ◽  
pp. 151 ◽  
Author(s):  
OLIVIER J.-P. BALL ◽  
W. RICHARD WEBBER ◽  
LARA D. SHEPHERD
Keyword(s):  
New Species ◽  
New Zealand ◽  
Dna Sequences ◽  
Histone H3 ◽  
Morphological Characters ◽  
Closely Related Species ◽  
Molecular Phylogenetic ◽  
Low Levels ◽  
Three New Species ◽  
High Degree

The talitrid landhopper genus Waematau Duncan, 1994 is restricted to the northern North Island of New Zealand. Six species of Waematau from Te Paki Ecological District are documented. Three known species, Waematau muriwhenua Duncan, 1994, W. reinga Duncan, 1994 and W. unuwhao Duncan, 1994, are redescribed and three new species, W. kohuroa sp. nov., W. rereke sp. nov. and W. ringanohinohi sp. nov. are described, bringing the total number of known Waematau species to eight. A molecular phylogenetic analysis of all eight known Waematau species was conducted using DNA sequences from the CO1, 16S and histone H3 loci. Results show a high degree of congruence between the molecular phylogeny and morphological characters distinguishing the species. Molecular analysis also supports recognition of the three new species, despite low levels of interspecific morphological variation for certain traits. We identify the most obvious morphological indicators of evolutionary change between closely related species of Waematau, and predict that the New Zealand landhopper fauna is richer than currently recognised. 

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

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.

Taxonomy of Neomuscina Townsend (Diptera, Muscidae) from Brazil

Zootaxa ◽  
2012 ◽  
Vol 3504 (1) ◽  
pp. 1 ◽  
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.

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

2015 ◽  
Vol 96 (2) ◽  
pp. 305-311 ◽  
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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