On the identity and origin of Anadara demiri (Bivalvia: Arcidae)

2009 ◽  
Vol 89 (6) ◽  
pp. 1289-1298 ◽  
Author(s):  
Paolo G. Albano ◽  
Emidio Rinaldi ◽  
Francesca Evangelisti ◽  
Michela Kuan ◽  
Bruno Sabelli

Anadara demiri (Piani, 1981) is an alien species in the Mediterranean Sea extending its range from Turkey westernly to the Adriatic Sea, where it is locally abundant. The species was first identified as Arca amygdalum Philippi, 1847 in the 1970s. The locus typicus of A. amygdalum is China. This first identification has never been discussed and the species has been thought to be of Indo-Pacific origin to date. However, in the Indo-Pacific province no Anadara shows any similarity with A. demiri. Morphological and molecular data suggest A. demiri is closely related to Anadara transversa (Say, 1822), a common species of the eastern coasts of North America. Anadara demiri is hence considered a junior synonym of A. transversa and the origin of this immigration has to be searched in the southern range of this species, maybe the Gulf of Mexico coasts of Florida.

Zootaxa ◽  
2021 ◽  
Vol 5052 (3) ◽  
pp. 395-405
Author(s):  
ROBERTO CARRERA-MARTÍNEZ ◽  
DANIEL JONES ◽  
SEAN D. SCHOVILLE ◽  
BRUCE A. SNYDER ◽  
MAC A. JR. CALLAHAM

Two new species of Bimastos Moore are described based on morphological and molecular data. Bimastos nanae n. sp. resembles B. lawrenceae Fender, B. zeteki (Smith and Gittins) and B. welchi (Smith). Bimastos nanae n. sp. differs from these species in the position of the clitellum, size and number and position of thickened septa. Bimastos magnum n. sp. is similar to B. schwerti Csuzdi & Chang and B. palustris Moore in having a fully annular clitellum and male pores on huge porophores. Bimastos magnum n. sp. differs from both species by having a more posterior position of the clitellum (in xxiv-xxxiii, xxxiv) and larger body size. With the description of these new species, the number of Bimastos species is raised to 14.  


2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Abdul Razaq ◽  
Sobia Ilyas ◽  
Abdul Nasir Khalid

Cystodermella cinnabarina is reported here for the first time from the moist temperate forests of western Himalaya and is the first collection of a Cystodermella from Pakistan. This species is redescribed here using morphological and molecular data. The phylogenetic analysis which is based on internal transcribed spacers (ITS) showed that the Pakistani collection clustered distinctly with similar European sequences in the Cystodermella clade. The Italian and north European sequences of this species clustered in two separate subclades and the Pakistani sequences closely matched the Italian sequences. It is evident that the Pakistani population has a very close evolutionary affinity with the Italian individuals rather than those from northern Europe. The species is distributed in Europe, in North America, and now in the western Himalaya of Asia.


2022 ◽  
pp. 1-61
Author(s):  
Ana Isabel Camacho ◽  
Paloma Mas-Peinado ◽  
E. Karen López-Estrada ◽  
Beatriz A. Dorda ◽  
Isabel Rey

Abstract The “Iberobathynella group”, or Iberobathynellini tribe, is a complex of six genera consisting of 33 nominal species and several cryptic species with an amphiatlantic distribution (in Europe, North Africa and North America). A modern systematic revision of this group of subterranean crustaceans is presented here. A phylogenetic and biogeographic study using morphological and molecular data (mitocondrial coi and nuclear 18S) was carried out and allowed to a) re-evaluate the taxonomic status and validity of previously erected subtribes, genera and subgenera that show congruence in the data; b) assess whether the identified mitochondrial lineages represent cryptic species; c) provide a plausible phylogenetic hypothesis for the relationships within Iberobathynellini and with the other two genera of the family Parabathynellidae that inhabit North America and Europe (Montanabathynella and Parabathynella, respectively); d) propose a plausible temporal and historical framework (paleobiogeographic scenario) for the diversification and evolution of the Iberobathynellini tribe based on the current distribution of morphotypes and their estimated times of divergence. Our results show that in parabathynellids, molecular and morphological divergences are not always congruent. Subtribe and subgenus are invalid categories so they must be eliminated. Paraiberobathynella genus needs to be revisited. The molecular dating results support the early divergence of the Iberobathynellini Tribe (Upper Cretaceous, around 78 Mya) and the vicariance by plate tectonics as main factor to explain the amphi-Atlantic distribution shown by this ancient subterranean crustacean group. Since there are species morphologically very similar to I. magna and I. imuniensis, but genetically different, we can ensure the existence of at least three cryptic species. Texanobathynella is undoubtedly a valid genus distinct from Iberobathynella. Montanabathynella and Parabathynella are two well-differentiated genera closely related to the Iberobathynellini tribe.


ZooKeys ◽  
2021 ◽  
Vol 1046 ◽  
pp. 1-141
Author(s):  
Kurt Jordaens ◽  
Georg Goergen ◽  
Jeffrey H. Skevington ◽  
Scott Kelso ◽  
Marc De Meyer

The Afrotropical representatives of the hover fly genus Mesembrius Rondani, 1857 (Diptera) are divided into two subgenera, namely Mesembrius s.s. and Vadonimyia Séguy, 1951 and, in this present work, the subgenus Mesembrius s.s. is revised. A total of 23 Mesembrius s.s. species are recognised for the Afrotropics. Known species are re-described and six species new to science are described: Mesembrius arcuatussp. nov., M. copelandisp. nov., M. longipilosussp. nov., M. sulcussp. nov., M. tibialissp. nov. and M. vockerothisp. nov. Mesembrius africanus (Verrall, 1898) is considered a junior synonym of M. senegalensis (Macquart, 1842), M. ctenifer Hull, 1941 a junior synonym of M. caffer (Loew, 1858), M. lagopus (Loew, 1869) a junior synonym of M. capensis (Macquart, 1842) and M. platytarsis Curran, 1929 a junior synonym of M. simplicipes Curran, 1929. The females of Mesembrius chapini Curran, 1939, M. rex Curran, 1927 and M. regulus (Hull, 1937) are described for the first time. Lectotypes are designated for Mesembrius caffer, M. capensis, M. cyanipennis (Bezzi, 1915), M. minor (Bezzi, 1915), M. senegalensis, M. strigilatus (Bezzi, 1912) and M. tarsatus (Bigot, 1883). Separate identification keys for males and females are presented. We obtained 236 DNA barcodes for 18 species. The relationships amongst the different Mesembrius species are briefly discussed, based on morphological and DNA barcode data.


Zootaxa ◽  
2015 ◽  
Vol 3956 (1) ◽  
pp. 29 ◽  
Author(s):  
MARIANA Y. DELI ANTONI ◽  
SERGIO M. DELPIANI ◽  
ANDREW L. STEWART ◽  
MARIANO GONZÁLEZ-CASTRO ◽  
JUAN M. DÍAZ DE ASTARLOA

1974 ◽  
Vol 106 (7) ◽  
pp. 711-758 ◽  
Author(s):  
Edward C. Becker

AbstractThe Nearctic species of the elaterid genusAthouseast of the Rocky Mountains are revised. Of the 16 included species, two are described as new (neacanthusknown from southern Quebec to northern Georgia andorvusknown from Nova Scotia to Michigan to Virginia) and two species are transferred fromDenticollis, namely,productus(Randall) andquadrosaBecker (as a new junior synonym ofA.appalachiusVan Dyke). Other new synonymies are:carolinusVan Dyke as a junior synonym ofacanthus(Say),erebusVan Dyke ofposticus(Melsheimer), andbipunctatusProvancher ofproductus(Randall). The European speciescampyloidesis known from North America from near Quebec City and in the Canadian Maritime Provinces. Neotypes are designated for the five species described by Say and Randall and for one described by Melsheimer; lectotypes, when needed, are designated for LeConte’s, Melsheimer’s, and Candèze’s species. A key to the species is presented and the salient features and distribution maps for each species are included. Brief notes are given on three western species ofAthous: two common species (rufiventris(Eschscholtz) andnigropilisMotschulsky) that are occasionally found east of the Rockies andorophilusHarold, which is known only by the type from the Bitter Root Mountains. Brief discussions are included of two European species,vittatus(Fabricius) andsubfuscus(Müller), which have been intercepted at various eastern ports in Canada and the United States, but which have not become established in North America.


2014 ◽  
Vol 51 (6) ◽  
pp. 345-371 ◽  
Author(s):  
Saara Velmala ◽  
Leena Myllys ◽  
Trevor Goward ◽  
Håkon Holien ◽  
Pekka Halonen

Author(s):  
J. Ammirati ◽  
K. Liimatainen ◽  
D. Bojantchev ◽  
U. Peintner ◽  
R. Kuhnert-Finkernagel ◽  
...  

The focus of this paper is the North American species of Cortinarius in subg. Leprocybe. Eighteen species, including twelve new ones, and two tentative (aff.) species, are delimited based on morphological and molecular data (DNA ITS-LSU sequences). Existing type specimens of species in subg. Leprocybe were also studied, and neo- or epitypes designated for C. cotoneus, C. melanotus, C. phrygianus and C. venetus to stabilize the nomenclature. In addition, to improve the infrasubgeneric classification of Leprocybe three new sections are proposed: sect. Fuscotomentosi, sect. Melanoti and sect. Squamiveneti. This study adds substantial information to the knowledge of subg. Leprocybe in North America against a background of European species. To date only two species, C. phrygianus and C. squamivenetus have been reported from both continents.


2020 ◽  
Vol 40 (5) ◽  
pp. 627-633
Author(s):  
Mariana Terossi ◽  
Fernando L Mantelatto

Abstract The genus OgyridesStebbing, 1914 comprises 12 recognized species of small marine shrimps distributed in tropical and temperate waters worldwide. Ogyrides occidentalis (Ortmann, 1893), described for Brazil, was considered a junior synonym of Ogyrides alphaerostris (Kingsley, 1880). The aim of this study was to revalidate O. occidentalis from the Brazilian coast based on morphological and molecular data (16S gene), and to provide a redescription, illustrations and a comparison with congeners. As expected, O. occidentalis is close to O. alphaerostris but can be separated by molecular data, the proportional size of the second article of the antennular peduncle in relation to the third article (3–4 times as long as the former, and 2–2.5 times as long as the latter), and the size of the scaphocerite (not reaching the distal part of the second article of the antennular peduncle in O. occidentalis, while always reaching or sometimes overreaching the distal part of the second article of the antennular peduncle in O. alphaerostris). We also provided a table comparing key morphological characteristics of all known species of the genus, and discuss the validity of thelycum-like characters in the taxonomy of Ogyrides.


Zootaxa ◽  
2008 ◽  
Vol 1741 (1) ◽  
pp. 59 ◽  
Author(s):  
MARINA ALCOBENDAS ◽  
JOSÉ L. RUIZ ◽  
CHIARA SETTANNI ◽  
MARIO GARCÍA-PARÍS

The species Euzonitis haroldi (Heyden 1870) (Coleoptera: Meloidae; Nemognathinae) is an almost unknown taxon, sometimes treated as a variety of E. quadrimaculata (Pallas, 1773), originally described from Central Spain and only known from a few localities in Spain and Morocco. We found specimens of E. haroldi and E. quadrimaculata feeding together on flowers of Apiaceae in Central Spain. These specimens provided an excellent opportunity to properly assess the status of E. haroldi by analyzing and comparing morphological and molecular data of the two taxa. For the morphological study we reviewed a total of 227 specimens. We concluded that E. haroldi is genetically and morphologically identical, except for coloration, to E. quadrimaculata, and therefore E. haroldi should be treated as a junior synonym of E. quadrimaculata (syn. nov.)


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