Octopus djinda (Cephalopoda: Octopodidae): a new member of the Octopus vulgaris group from southwest Australia

Zootaxa ◽  
2021 ◽  
Vol 5061 (1) ◽  
pp. 145-156
Author(s):  
MICHAEL D. AMOR ◽  
ANTHONY M. HART
Keyword(s):  
Sequence Divergence ◽  
Taxonomic Status ◽  
Species Group ◽  
Close Relative ◽  
Octopus Vulgaris ◽  
Taxonomic Description ◽  
Southwest Australia ◽  
Previously Treated ◽  
Partial Fragment ◽  
Formal Recognition

A new Octopus Cuvier, 1797 species, Octopus djinda Amor, 2021 (previously treated as O. cf. tetricus and O. aff. tetricus), is described from the shallow waters off southwest Australia. This species was classified as conspecific with O. tetricus Gould, 1852 from Australia’s east coast and New Zealand but is shown here to be morphologically and genetically distinct. This description is based on 25 individuals across three localities in southwest Australia, encompassing most of its distribution. Greater and non-overlapping sucker counts on the males hectocotylised arm delimit east and west coast forms. DNA barcoding using cytochrome c oxidase subunit I also successfully differentiates between these taxa; 13 polymorphisms along a 349 bp partial fragment (3.7% sequence divergence). A close relative of the O. vulgaris Cuvier, 1797 species-group, O. djinda, sp. nov. supports a highly productive fishery and is currently one of two octopod fisheries worldwide to have received sustainable certification from the Marine Stewardship Council. The taxonomic description presented here provides formal recognition of the taxonomic status of southwest Australia’s common octopus, O. djinda, sp. nov. and facilitates appropriate fisheries catch reporting and management.  

scholarly journals Phylogeography of the longnose dace (Rhinichthys cataractae) species group in northwestern North America — the Nooksack dace problem

2015 ◽  
Vol 93 (10) ◽  
pp. 727-734 ◽  
Author(s):  
Eric B. Taylor ◽  
J.D. McPhail ◽  
J.A. Ruskey
Keyword(s):  
North America ◽  
Nuclear Dna ◽  
Sequence Divergence ◽  
Taxonomic Status ◽  
Species Group ◽  
Consistent Difference ◽  
Continental Divide ◽  
Rhinichthys Cataractae ◽  
Nooksack Dace ◽  
Northwestern North America

The longnose dace (Rhinichthys cataractae (Valenciennes, 1842); Cyprinidae) is one of the most widespread freshwater fishes in North America, and across its range there have been several divergent forms described that are of uncertain taxonomic status. One of these forms, the Nooksack dace, is found in southwestern British Columbia and adjacent portions of western Washington, and is distinguished from longnose dace by a lower number of lateral-line scales. We sequenced a total of approximately 1400 base pairs (bp) of mitochondrial DNA (mtDNA) and noted that the longnose dace found west of the Continental Divide and Nooksack dace constituted reciprocally monophyletic clades that differed from each other by between 2% and 3% sequence divergence. Sequence analysis at two nuclear loci (the S7 ribosomal protein intron 1 (S7) and recombination activation gene 1 (RAG1)), however, showed no consistent difference between longnose dace and Nooksack dace and several alleles were shared between them. By contrast, consistent differences at both mtDNA and nuclear DNA loci were resolved between R. cataractae samples from east and west of the Continental Divide. The Nooksack dace does not appear to warrant separate taxonomic status from the longnose dace, but the mtDNA differences support its recognition as an important component of the evolutionary and biogeographic legacy of R. cataractae.

scholarly journals VARIABILITY OF SHELL IN GASTROPODS OF THE GENUS BORYSTHENIA LINDHOLM, 1914: TESTING THE STATISTICAL APPROACH IN SEARCH OF TRAITS FOR THE RECENT AND FOSSIL SPECIES DELIMITATION

2021 ◽  
Vol 14 (1) ◽  
pp. 110-116
Author(s):  
Olga Yu. Anistratenko ◽  
Diana S. Osipova ◽  
Vitaliy V. Anistratenko
Keyword(s):  
North Africa ◽  
Species Delimitation ◽  
Statistical Approach ◽  
Statistical Processing ◽  
Taxonomic Status ◽  
Shell Morphology ◽  
Close Relative ◽  
Fossil Species ◽  
Gastropod Mollusc ◽  
Fossil Records

The gastropod mollusc genus Borysthenia Lindholm, 1914 comprises many species throughout Europe, Asia, North Africa and North America but species delimitation, based mainly on shell morphology (only possible concerning the fossil records) is often disputable. Statistical methods used to test if the shell measurements are reliable traits in delimitation of recent and fossil species in gastropod molluscs of the genus Borysthenia. Our analyses based on quantitative study of over 100 specimens of the Borysthenia species both modern and fossil. It is concluded that the dimensional characteristics of their shell are suitable for the differentiation of both recent and fossil (at least of Pontian age) species through the statistical processing of quantitative data. Through the morphological study of type material, taxonomic status of B. jalpuchense Gozhik, 2002 and B. vinogradovkaense Gozhik, 2002 described from the middle-pontian deposits of Ukraine revised. It is suggested that these taxa are considered two distinct though close relative extinct species. Stratigraphic range of B. jalpuchense is expanded up to the Lower Pontian. All the modern individuals of Borysthenia involved are attributed to B. menkeana (Jelski, 1863) due to their exact correspondence to the lectotype of this species.

The Vietnamese population of Megophrys kuatunensis (Amphibia: Megophryidae) represents a new species of Asian horned frog from Vietnam and southern China

Zootaxa ◽  
2017 ◽  
Vol 4344 (3) ◽  
pp. 465 ◽  
Author(s):  
BENJAMIN TAPLEY ◽  
TIMOTHY CUTAJAR ◽  
STEPHEN MAHONY ◽  
CHUNG THANH NGUYEN ◽  
VINH QUANG DAU ◽  
...  
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Eastern China ◽  
Taxonomic Status ◽  
Species Group ◽  
Type Specimens ◽  
Vietnamese Population ◽  
Group A ◽  
A New Species

The Asian frog genus Megophrys is a diverse group of morphologically conserved, forest-dwelling frogs. The genus harbours highly localised species diversification and new species continue to be described on a regular basis. We examined the taxonomic status of a population of Megophrys frogs from the Hoang Lien Range in northern Vietnam and southern China previously identified as M. kuatunensis (subgenus Panophrys). Preliminary phylogenetic analyses using a fragment of 16S rDNA places the species in question within the Megophrys (subgenus Panophrys) species group, a primarily Chinese radiation within the genus. On the basis of morphological, molecular and bioacoustic data, we conclude that this population does not represent M. kuatunensis, or any known species in the genus. We herein describe this species of Megophrys as new. Known only from Sa Pa District, Lao Cai Province in Vietnam and Jinping County, Yunnan Province in China, the new species is likely to be threatened by ongoing deforestation in the region. We provide an updated species description of M. kuatunensis based on type specimens, and suggest that M. kuatunensis is likely to be restricted to eastern China.  

scholarly journals A new species of Anomaloglossus (Anura: Aromobatidae) of the stepheni group with the redescription of A. baeobatrachus (Boistel and de Massary, 1999), and an amended definition of A. leopardus Ouboter and Jairam, 2012

Zootaxa ◽  
2019 ◽  
Vol 4576 (3) ◽  
pp. 439 ◽  
Author(s):  
ANTOINE FOUQUET ◽  
JEAN-PIERRE VACHER ◽  
ELODIE A. COURTOIS ◽  
CHLOÉ DESCHAMPS ◽  
PAUL OUBOTER ◽  
...  
Keyword(s):  
New Species ◽  
Taxonomic Status ◽  
Species Group ◽  
Type Locality ◽  
Advertisement Call ◽  
Nominal Species ◽  
Guiana Shield ◽  
Group A ◽  
Breeding Mode ◽  
Definition Of

Anomaloglossus is a species-rich genus of frogs endemic to the Guiana Shield that still harbors several unnamed species. Within the A. stepheni species group (which includes four valid nominal species), A. baeobatrachus has an uncertain taxonomic status, notably because the holotype was an unvouchered specimen depicted in a popular journal. Another member of this group, A. leopardus, was only superficially described, lacking information on the sex of specimens in the type series and on advertisement call. Therefore, these two taxa need clarifications in order to allow the description of the extant undescribed species. In this paper, we redescribe A. baeobatrachus based on newly collected material from the species type locality and provide information about its reproductive ecology. We also provide an amended definition of A. leopardus using newly collected material from its type locality. These two species form a clade along with a third species from the Eastern Guiana Shield, which is also described herein. The reproductive biology of A. baeobatrachus and A. stepheni is very similar. Both species have endotrophic and nidicolous tadpoles, despite being distantly related, suggesting independent evolution of this breeding mode. The new species and A. leopardus, on the other hand, have exotrophic tadpoles. 

An annotated catalog of types of Neotropical Pierinae (Lepidoptera: Pieridae) in the collection of the National Museum of Natural History, Smithsonian Institution, Washington DC

Zootaxa ◽  
2005 ◽  
Vol 1022 (1) ◽  
pp. 1 ◽  
Author(s):  
STANISLAV P. ABADJIEV
Keyword(s):  
Natural History ◽  
Taxonomic Status ◽  
Smithsonian Institution ◽  
Species Group ◽  
Type Locality ◽  
Washington Dc ◽  
National Museum ◽  
Original Publication ◽  
Type Specimens ◽  
New Synonym

A catalog of the type material of 59 taxa of Neotropical Pierinae housed in the National Museum of Natural History, Smithsonian Institution, Washington, DC, is presented. Each entry includes the species-group name, the original combination quoted from the original publication, the type locality, the type specimens with their labels, and notes about current taxonomic status. One new synonym has been established, Euterpe dysoni Doubleday, 1847 = Leodonta marginata Schaus, 1902. Lectotypes are designated for 5 species group taxa: Archonias intermedia Schaus, 1913, Hesperocharis jaliscana Schaus, 1898, H. paranensis Schaus, 1898, Pieris sublineata Schaus, 1902, and P. limona Schaus, 1913.

scholarly journals Colobopsis explodens sp. n., model species for studies on “exploding ants” (Hymenoptera, Formicidae), with biological notes and first illustrations of males of the Colobopsis cylindrica group

ZooKeys ◽  
2018 ◽  
Vol 751 ◽  
pp. 1-40 ◽  
Author(s):  
Alice Laciny ◽  
Herbert Zettel ◽  
Alexey Kopchinskiy ◽  
Carina Pretzer ◽  
Anna Pal ◽  
...  
Keyword(s):  
Species Complex ◽  
Mandibular Gland ◽  
Species Group ◽  
The Philippines ◽  
Species Level ◽  
Model Species ◽  
Species Identity ◽  
Taxonomic Description ◽  
Biological Studies ◽  
Taxonomic Changes

A taxonomic description of all castes of Colobopsisexplodens Laciny & Zettel, sp. n. from Borneo, Thailand, and Malaysia is provided, which serves as a model species for biological studies on “exploding ants” in Southeast Asia. The new species is a member of the Colobopsiscylindrica (COCY) group and falls into a species complex that has been repeatedly summarized under the name Colobopsissaundersi (Emery, 1889) (formerly Camponotussaundersi). The COCY species group is known under its vernacular name “exploding ants” for a unique behaviour: during territorial combat, workers of some species sacrifice themselves by rupturing their gaster and releasing sticky and irritant contents of their hypertrophied mandibular gland reservoirs to kill or repel rivals. This study includes first illustrations and morphometric characterizations of males of the COCY group: Colobopsisexplodens Laciny & Zettel, sp. n. and Colobopsisbadia (Smith, 1857). Characters of male genitalia and external morphology are compared with other selected taxa of Camponotini. Preliminary notes on the biology of C.explodens Laciny & Zettel, sp. n. are provided. To fix the species identity of the closely related C.badia, a lectotype from Singapore is designated. The following taxonomic changes within the C.saundersi complex are proposed: Colobopsissolenobia (Menozzi, 1926), syn. n. and Colobopsistrieterica (Menozzi, 1926), syn. n. are synonymized with Colobopsiscorallina Roger, 1863, a common endemic species of the Philippines. Colobopsissaginata Stitz, 1925, stat. n., hitherto a subspecies of C.badia, is raised to species level.

Analytic taxonomy and notes on marine, brackish-water and estuarine Gastrotricha

Zootaxa ◽  
2010 ◽  
Vol 2392 (1) ◽  
pp. 1 ◽  
Author(s):  
WILLIAM D. HUMMON ◽  
M. ANTONIO TODARO
Keyword(s):  
Taxonomic Status ◽  
Species Group ◽  
Zoological Nomenclature ◽  
New Name ◽  
New Family ◽  
Analytic Review ◽  
The Family ◽  
Species Inquirenda ◽  
The Subject ◽  
Species Inquirendae

Marine Gastrotricha, both Macrodasyida and Chaetonotida, are the subject of an analytic review, citing taxonomic status of names, authorships of taxa, and those responsible for changes, in accordance with the International Code of Zoological Nomenclature, 4 th ed. (1999). Notes are included with regard to taxonomic usage so as to guide workers in the future. Among the proposed novelties are: within Macrodasyida, to restrict the family Lepidodasyidae Remane, 1927 to the genus Lepidodasys Remane, 1926, and to establish a new family, Cephalodasyidae with Cephalodasys Remane, 1926 as its type-species to house the remaining genera and species that have been contained in the polyphyletic family Lepidodasyidae. Hemidasys agaso Claparède, 1867 is considered extinct, and the new name Tetranchyroderma antenniphorum is proposed for Tetranchyroderma antennatum Luporini, Magagnini & Tongiorgi, 1973; in addition, five species are here considered to be species inquirendae: Dactylopodola weilli d'Hondt, 1965, Paradasys nipponensis Sudzuki, 1976, Macrodasys indicus Kutty & Nair, 1969. Tetranchyroderma forceps d’Hondt & Balsamo, 2009 and Turbanella plana (Giard, 1904b). Among Chaetonotida: the Xenotrichula velox-species group Ruppert, 1979 and the Xenotrichula intermedia-species group Ruppert, 1979 were given each the rank of subgenus. Chaetonotus pleuracanthus Remane, 1926 is rejected as a synonym for Chaetonotus marinus Giard, 1904; Chaetonotus somniculosus Mock, 1979 is transferred to the genus Halichaetonotus, the new name Halichaetonotus euromarinus is proposed for Halichaetonotus spinosus Mock, 1979, and Xenotrichula carolinensis Ruppert, 1979 is re-established. Heteroxenotrichula variocirrata d'Hondt, 1966 is here considered to be species inquirenda.

scholarly journals Genetic Variability and Taxonomic Status of the Nihoa and Laysan Millerbirds

The Condor ◽  
2007 ◽  
Vol 109 (4) ◽  
pp. 954-962
Author(s):  
Robert C. Fleischer ◽  
Beth Slikas ◽  
Jon Beadell ◽  
Colm Atkins ◽  
Carl E. McINTOSH ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Microsatellite Loci ◽  
Sequence Divergence ◽  
Taxonomic Status ◽  
Small Population ◽  
Base Pairs ◽  
Stochastic Effects ◽  
Mtdna Sequence ◽  
Species Pairs ◽  
Two Populations

Abstract The Millerbird (Acrocephalus familiaris) is an endemic Northwestern Hawaiian Islands reed warbler that existed until about 1923 on Laysan Island (A. f. familiaris) and currently occurs in a small population on Nihoa Island (A. f. kingi). The two populations are described as separate subspecies or species on the basis of size and plumage differences. We assessed genetic variation in blood samples from 15 individuals in the modern Nihoa population using approximately 3000 base pairs (bp) of mitochondrial DNA (mtDNA) sequence and 14 microsatellite loci. We also obtained up to 1028 bp of mtDNA sequence from the fragmented DNA of museum specimens of three birds collected on Nihoa in 1923 and five birds collected on Laysan in 1902 and 1911 (ancient samples). Genetic variation in both marker types was extremely low in the modern Nihoa population (nucleotide diversity [π]  =  0.00005 for mtDNA sequences; observed heterozygosity was 7.2% for the microsatellite loci). In contrast, we found three mtDNA haplotypes among the five Laysan individuals (π  =  0.0023), indicating substantially greater genetic variation. The Nihoa and Laysan taxa differed by 1.7% uncorrected mtDNA sequence divergence, a magnitude that would support designation at the subspecies, and perhaps species, level relative to other closely related Acrocephalus species pairs. However, in light of strong ecological similarity between the two taxa, and a need to have additional populations to prevent extinction from stochastic effects and catastrophes, we believe these genetic differences should not deter a potential translocation of individuals from Nihoa to Laysan.

First record of Myotis flavus (Chiroptera: Vespertilionidae) from mainland China and a reassessment of its taxonomic status

Zootaxa ◽  
2010 ◽  
Vol 2414 (1) ◽  
pp. 41 ◽  
Author(s):  
TINGLEI JIANG ◽  
KEPING SUN ◽  
CHENGHAN CHOU ◽  
ZHENZHEN ZHANG ◽  
JIANG FENG
Keyword(s):  
Sequence Similarity ◽  
Mainland China ◽  
Sequence Divergence ◽  
Taxonomic Status ◽  
First Record ◽  
Jiangxi Province ◽  
Cytb Sequence ◽  
Locality Record ◽  
Intraspecific Divergence ◽  
Phylogenetic Grouping

Myotis flavus, a synonym of M. formosus found in Taiwan, is reported for the first time for mainland China. We captured one bat in Jiangxi province in Southeast China and identified the taxon as M. flavus based upon its external, cranial and baculum morphology. The uncorrected cytb sequence divergence between M. flavus from Jiangxi and specimen from Taiwan was only 0.61%, indicating intraspecific divergence. Both, morphological and genetic evidence indicated that the specimen from mainland China was a new locality record of M. flavus. In contrast, M. flavus from Jiangxi and from Taiwan exhibited 15.53–16.67% sequence divergence from samples of M. formosus obtained from locations outside Taiwan, and they were not sister lineages. Therefore M. flavus should be recognized as a species from M. formosus. In addition, the sequence similarity between M. watasei from Taiwan and M. formosus from mainland China and their phylogenetic grouping strongly suggests that M. watasei is a synonym of M. formosus.

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