A new species of Dactylopusioides (Copepoda: Harpacticoida: Thalestridae) infesting brown algae, and its life history

Zootaxa ◽  
2007 ◽  
Vol 1582 (1) ◽  
pp. 59-68 ◽  
Author(s):  
TAKAKI SHIMONO ◽  
NOZOMU IWASAKI ◽  
HIROSHI KAWAI
Keyword(s):  
New Species ◽  
Brown Algae ◽  
Laboratory Experiments ◽  
Harpacticoid Copepod ◽  
Morphological Characters ◽  
Proximal Margin ◽  
Complete Life Cycle ◽  
The Family ◽  
Short Seta ◽  
A New Species

A new species of harpacticoid copepod, Dactylopusioides malleus sp. nov., belonging to the family Thalestridae is described from central Japan. The species is obligately endophagous in dictyotalean brown algae (Dictyota dichotoma (Hudson) J.V. Lamouroux, Dictyota maxima Zanardini and Dictyopteris undulata Holmes). The species nests by burrowing into the algal tissue during the copepod naupliar stages, while copepodids and adults reside in a dome-shaped, transparent capsule made of mucus and formed on the algal tissue. In laboratory experiments, the new species progressed through its complete life cycle (i.e. from egg to adult) while feeding only on unialgal dictyotalean tissues; this confirmed the obligate relationship with the host. The new species shares the following morphological characters with other species of Dactylopusioides: 1) antennary exopod 1-segmented; 2) first segment of P1 endopod in female elongated with a long seta on the inner proximal margin; 3) baseoendopod and exopod of P5 in female with five setae. It differs from other species in the following ways: 1) antennary exopod with six setae; 2) a stout hammer-shaped inner spine on the basis of P1 in male; 3) terminal short seta on third segment of P2 endopod in male is plumose.

A new species of the genus Lucasioides Kwon, 1993 (Isopoda, Oniscidea, Agnaridae) from Siberia, Russia

Zootaxa ◽  
2021 ◽  
Vol 4903 (1) ◽  
pp. 140-150
Author(s):  
KONSTANTIN B. GONGALSKY ◽  
PAVEL S. NEFEDIEV ◽  
ILYA S. TURBANOV
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
First Record ◽  
Morphological Characters ◽  
Molecular Data ◽  
Altai Mountains ◽  
The Family ◽  
Southwestern Siberia ◽  
A New Species ◽  
Preliminary Phylogenetic Analysis

A new species of the family Agnaridae, Lucasioides altaicus sp. nov., is described from the Altai Mountains, southwestern Siberia, based both on morphological characters and molecular data. This species is the first record of Lucasioides from Russia, whose location is the northernmost habitat of terrestrial isopods in indigenous habitats presently known to Eurasia. The diagnostic characters of the new species and a preliminary phylogenetic analysis within Agnaridae are provided. 

Platythecium seychellense, a new species in the family Graphidaceae (lichenized Ascomycota: Ostropales) from the Seychelles and a world key to the genus

2017 ◽  
Vol 49 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Gerhard NEUWIRTH ◽  
André APTROOT ◽  
Elfie STOCKER-WÖRGÖTTER
Keyword(s):  
New Species ◽  
Related Species ◽  
Morphological Characters ◽  
The Family ◽  
Lichen Substances ◽  
Lichen Fungus ◽  
A New Species

AbstractThe new corticolous lichen fungus Platythecium seychellense is described from the Seychelles. Morphological characters as well as distribution and resemblance to related species are discussed. The species is characterized by a crustose, grey-green, smooth thallus lacking lichen substances, elongate and slender apothecia having flat, red-brown discs and grey 3-septate ascospores. A world key to all currently known species in the genus is presented.

Una nueva especie de Proceratophrys (Leptodactylidae) del nordeste de Argentina

1993 ◽  
Vol 14 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Alfonso Barrio ◽  
Isabel T. Mercadal de Barrio
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
The Family ◽  
A New Species

AbstractA new species of the family Leptodactylidae is described from Argentina. Morphological characters of this and other species within the genus Proceratophrys are compared.

Delavalia Qingdaoensis Sp. Nov. (Harpacticoida, Miraciidae), a New Copepod Species from Jiaozhou Bay, Yellow Sea

Crustaceana ◽  
2011 ◽  
Vol 84 (9) ◽  
pp. 1085-1097 ◽  
Author(s):  
L. Ma ◽  
X.-Z. Li
Keyword(s):  
New Species ◽  
Yellow Sea ◽  
Jiaozhou Bay ◽  
Harpacticoid Copepod ◽  
Setal Formula ◽  
Shandong Peninsula ◽  
Sediment Samples ◽  
The Family ◽  
Caudal Rami ◽  
A New Species

Abstract Delavalia qingdaoensis, a new species of harpacticoid copepod of the family Miraciidae is described based on specimens sorted from sediment samples collected in Jiaozhou Bay, Qingdao, Shandong Peninsula, Yellow Sea, in May 2008. The new species is easily distinguished from its congeners by the combined characters of the antennulary segments, an apomorphic setal formula of the swimming legs, and the shape of P5 in both sexes. It is remarkably similar to D. bocqueti (Soyer, 1971) and D. latioperculata (Itô, 1981), but it differs from D. bocqueti by features of the caudal rami, antennule, antennary endopod, mandibular exopod, maxillipedal basis, and P5 endopodal lobe; from D. latioperculata by the caudal rami, the inner setae of P1-P4 enp-1, P2 enp-2, and P4 exp-3, and the shape of P5 in both sexes.

Studies on the Family Opisthorchiidaæ Braun, 1901, with a description of a New Species of Opisthorchis from a Sarus Crane (Antigone antigone)

1927 ◽  
Vol 5 (2) ◽  
pp. 89-104 ◽  
Author(s):  
D. O. Morgan
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Systematic Position ◽  
Minor Importance ◽  
New Genera ◽  
The Past ◽  
The Family ◽  
A New Species

The classification of the Trematode family Opisthorchiidæ presents some difficulties to the systematist. These difficulties arise partly from the fact that a number of the existing species appear to lack any real morphological characters by which they can be differentiated, slight variations in measurements, together with a difference in host, having been considered sufficient to justify the making of new species. This view has resulted in the placing of undue importance on somewhat minor differences when they do occur in other species, such differences being considered sufficient for creating new genera.The systematist is further confronted with the difficulty of forming definite opinions on the systematic position of some of the species made by earlier workers. Their descriptions and figures are often inadequate owing to the fact that characters which, in the past, were considered of minor importance are now given much closer attention. Examples of the confusion which has arisen from such a position will be referred to in this paper.

scholarly journals Description of a new species Gyraulus (Pulmonata: Planorbidae) from the land thermal spring Khakusy of Lake Baikal

ZooKeys ◽  
2018 ◽  
Vol 762 ◽  
pp. 1-12 ◽  
Author(s):  
Tatiana Sitnikova ◽  
Tatiana Peretolchina
Keyword(s):  
New Species ◽  
Lake Baikal ◽  
Thermal Spring ◽  
Morphological Characters ◽  
Shell Size ◽  
The North ◽  
The Family ◽  
North Eastern ◽  
Small Shell ◽  
A New Species

A new species of the family Planorbidae is described from the land thermal spring Khakusy, on the north-eastern shore of Lake Baikal. The description of Gyraulustakhteevi sp. n. includes morphological characters and gene sequences (COI of mtDNA) for the species separation from sister taxon Gyraulusacronicus (A. Férussac, 1807) collected from the small Krestovka River in-flowing into the south-western part of the Lake. The new species differs from G.acronicus in small shell size of adults, having smaller number of prostate folds (maximal up to 26 in G.takhteevi n. sp. vs. 40 in G.acronicus), a short preputium (approximately twice shorter than the phallotheca), and an elongated bursa copulatrix. The population of Gyraulustakhteevi sp. n. consists of two co-existent morphs: one of them has a narrow shell spire and the second is characterized by wide spire similar to the shell of G.acronicus. One of the two revealed haplotypes of the new species includes both morphs, while the second consists of snails with wide spired shells.

A new species of the genus Riccardoella (Acari: Prostigmata: Ereynetidae) from the land snail Tauphaedusa tau (Gastropoda: Clausliidae) in Japan

Zootaxa ◽  
2018 ◽  
Vol 4402 (1) ◽  
pp. 163 ◽  
Author(s):  
TSUKASA WAKI ◽  
SHIMPEI F HIRUTA ◽  
SATOSHI SHIMANO
Keyword(s):  
New Species ◽  
Land Snail ◽  
Morphological Characters ◽  
Mite Species ◽  
Amino Acid Sequences ◽  
Mitochondrial Cytochrome ◽  
Sequence Identity ◽  
The Family ◽  
A New Species ◽  
City Park

A new mite species, Riccardoella (Proriccardoella) tokyoensis n. sp., is described from the lungs of the terrestrial gastropod Tauphaedusa tau (Boettger, 1877) (Clausliidae) collected in a forest city park of Tokyo, Japan. The new species is distinguished from other Riccardoella species by the following morphological characters: tibia II bears 2 setae (vs. 3 setae in other species); femur I bears 5 setae (vs. 4 or 6 setae in other species); seta of trochanter I is absent (vs. 1 seta in other species). Our phylogenetic tree based on amino acid sequences of the mitochondrial cytochrome c oxidase subunit 1 (COX1) confirmed that another member of the family Ereynetidae, “Ereynetidae sp.”, is the closest relative with 85% sequence identity. 

Speciation in the Acugutturidae (Nematoda: Aphelenchida)

Nematology ◽  
2002 ◽  
Vol 4 (4) ◽  
pp. 489-504 ◽  
Author(s):  
Byron Adams ◽  
Jean-François Silvain ◽  
Orville Marti
Keyword(s):  
New Species ◽  
Periplaneta Americana ◽  
Morphological Characters ◽  
The Body ◽  
The Family ◽  
Clear Differentiation ◽  
Stylet Length ◽  
Ectoparasitic Nematodes ◽  
Two Populations ◽  
A New Species

AbstractEctoparasitic nematodes (Acugutturus, Vampyronema and Noctuidonema) of the family Acugutturidae from 13 species of Lepidoptera (moths) and one species of Blattodea (cockroaches) were collected, measured and analysed by discriminant analysis in order to identify conspecifics and to determine which morphological characters were useful in defining differences between nematodes on different host species. The position of the excretory pore posterior to the metacorpus clearly differentiates Acugutturus parasiticus from Noctuidonema and Vampyronema. Two populations of A. parasiticus on Periplaneta americana from the West Indian islands of St Lucia and Guadeloupe are conspecific. Nematodes resembling Vampyronema, collected from two genera of Sphingidae in Guadeloupe are characterised by extremely long stylets, equal to ca 37% of the body length, and may represent a new genus. Noctuidonema from four species of Spodoptera (Noctuidae) are conspecific. However, a somewhat different Noctuidonema from the noctuid Pseudaletia unipuncta may represent a new species, based primarily on its shorter stylet length. Simple spicule structure, a smaller V percentage, and a shorter stylet in Vampyronema are characters that best define its differences from Noctuidonema. Nematodes on the noctuids Anicla infecta and Eulepidotis addens probably represent two new species of Vampyronema. There was no clear differentiation between nematodes on the noctuids Mocis disseverans, M. latipes, Agrapha oxygramma and Orthodes crenulata, and they are all probably conspecific with V.dibolia. Thus far, Noctuidonema has been found only on the trifine noctuids Spodoptera and Pseudaletia, whereas Vampyronema has been found on both trifine and quadrifine noctuids. We found evidence for sequential evolution, but not co-evolution, between these ectoparasitic nematodes and their lepidopteran hosts.

Resurrection of genus Nidirana (Anura: Ranidae) and synonymizing N. caldwelli with N. adenopleura, with description of a new species from China

2017 ◽  
Vol 38 (4) ◽  
pp. 483-502 ◽  
Author(s):  
Zhi-Tong Lyu ◽  
Zhao-Chi Zeng ◽  
Jian Wang ◽  
Chao-Yu Lin ◽  
Zu-Yao Liu ◽  
...  
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Sensu Stricto ◽  
Advertisement Call ◽  
Morphological Comparison ◽  
The Past ◽  
The Family ◽  
Significant Divergence ◽  
Morphological Differences ◽  
A New Species

The taxonomy of Babina sensu lato was controversial in the past decades. In this study, the phylogeny of genus Babina sensu lato was re-constructed based on genetic analysis, morphological comparison and advertisement call analysis. We found that Babina sensu stricto and previous subgenus Nidirana should be two distinct genera in the family Ranidae. N. caldwelli is confirmed to be a synonym of N. adenopleura because of the small genetic divergence and the lack of distinct morphological differences. A new species, Nidirana nankunensis sp. nov. is described based on a series of specimens collected from Mt. Nankun, Guangdong Province, China, which can be distinguished from other known congeners by having a behavior of nest construction, distinctive advertisement calls, significant divergence in the mitochondrial genes, and a combination of morphological characters. Currently, the genus Babina contains two species and the genus Nidirana contains eight species.

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