scholarly journals Illustrated record of the freshwater copepod Leptodiaptomus dodsoni (Calanoida, Diaptomidae) from central Mexico with comments on the distribution of the genus

2010 ◽  
Vol 10 (2) ◽  
pp. 409-414 ◽  
Author(s):  
Marcelo Silva-Briano ◽  
Eduardo Suárez-Morales
Keyword(s):  
North America ◽  
Calanoid Copepod ◽  
Original Description ◽  
First Record ◽  
Neotropical Region ◽  
Central Mexico ◽  
Nominal Species ◽  
Distal Margin ◽  
Western Mexico ◽  
The Right

The freshwater planktonic calanoid copepod Leptodiaptomus dodsoni Elías-Gutiérrez, Suárez-Morales & Romano, 1999, a rare species known only from western Mexico, is here recorded from the State of Aguascalientes, central Mexico. This species has a uniquely large, sinuous spine on segment 13 of the right male antennule, reaching the distal margin of segment 15. There are subtle differences between these two known populations; the morphological range of the species is complemented with data from the new specimens. This is the first record of L. dodsoni after its original description; it is probably restricted to a latitudinal fringe in central Mexico. Of the 22 nominal species of Leptodiaptomus currently recognized, up to 7 are known from the Neotropical region and some appear to be true endemics. Apparently, this primarily Nearctic genus radiated in North America and some species reached the Neotropical region where they diversified. A key for the identification of the species of the genus known from the Neotropical region is also provided.

scholarly journals First record and extended distribution of Otothyropsis piribebuy (Loricariidae: Hypoptopomatinae) in Brazil

2020 ◽  
Vol 60 ◽  
pp. e20206021
Author(s):  
Guilherme Seiji Hocama ◽  
Fernanda De Oliveira Martins ◽  
Francisco Severo-Neto
Keyword(s):  
Principal Component Analysis ◽  
Maximum Entropy ◽  
Principal Component ◽  
Original Description ◽  
First Record ◽  
Neotropical Region ◽  
Correct Identification ◽  
Neotropical Fish ◽  
Essential Step ◽  
Benthic Fishes

Cascudinhos are a group of small benthic fishes included in the Hypoptopomatinae subfamily, inhabiting small to moderate streams and rivers within the Neotropical region, from Venezuela to Northern Argentina. Until now, Otothyropsis piribebuy originally described from the rio Paraguay basin, in Paraguay, is the only species of the genus not recorded in Brazil. Recent samples in the rio Tererê, rio Paraguay basin, Brazil, revealed a population of Otothyropsis with uncertain taxonomic identity. Therefore, the study aimed to unveil the distribution of Otothyropsis within Brazilian territory. External morphology, osteology, measurements, and counts (plates, teeth, and rays) of these specimens from rio Tererê were compared to data from the original description of O. piribebuy, and also with specimens of O. piribebuy sampled in Paraguayan territory. Observations indicated no differences among the analyzed specimens. Furthermore, a Principal Component Analysis (PCA), carried out using log-transformed measures from Brazilian and Paraguayan specimens, showed no separation of these populations, also indicating that all analyzed specimens pertain to the same species. Based on this, a prediction map of distribution, using Maximum Entropy, was produced. The correct identification of spatial range of occurrence is an essential step to ensure the conservation of species, and the extended distribution of Otothyropsis piribebuy was confirmed, enhancing the list of neotropical fish from Brazil.

NOTES ON A RARE WOODWASP, XIPHYDRIA CANADENSIS (HYMENOPTERA: XIPHYDRIIDAE)

1979 ◽  
Vol 111 (8) ◽  
pp. 971-971
Author(s):  
W. J. Crins
Keyword(s):  
North America ◽  
Original Description ◽  
First Record ◽  
Single Female ◽  
Northeastern North America ◽  
The North ◽  
North Side ◽  
Provincial Park

The woodwasp, Xiphydria canadensis Provancher, is a rare insect restricted to northeastern North America. Provancher (1875) based his original description on a single female collected at St. Hyacinthe, Quebec. In his recent revision, Smith (1976) saw only five females. On 7 August 1977, I collected a specimen of this large and distinctive species on the north side of Hwy. 60, at Mile 12.7, just west of the Park Museum in Algonquin Provincial Park, Ontario. This collection constitutes the first record for this species in Ontario.

Some microsporidia found in certain fishes and insects in eastern Canada

Parasitology ◽  
1941 ◽  
Vol 33 (2) ◽  
pp. 186-208 ◽  
Author(s):  
H. B. Fantham ◽  
Annie Porter ◽  
L. R. Richardson
Keyword(s):  
North America ◽  
Pimephales Promelas ◽  
Original Description ◽  
First Record ◽  
Pieris Brassicae ◽  
Osmerus Mordax ◽  
Eastern Canada ◽  
New Host ◽  
North American Continent ◽  
The North

An account is given of some Microsporidia found in certain fishes and insects in eastern Canada, among which are new species of Nosema, Perezia and Gurleya.Nosema pimephales n.sp. produces large cysts or tumours in the abdomen of Pimephales promelas, one out of a large number from Lake Guindon, Province of Quebec, being infected.Nosema branchiale Nemeczek has been observed from a cod, Gadus callarias. The organism is shown to be a Nosema, though the incomplete original description has caused doubts as to whether some other genus was involved. Further details are now given.Nosema apis Zander and N. bombi Fantham & Porter have been found in Canada in hive-bees and humble-bees respectively, the latter being recorded from a new host, Bombus vagans.Glugea hertwigi n.var. canadensis is described from Osmerus mordax from Lake Edward.Perezia aeschnae n.sp. has been found in nymphs of the large dragonfly, Aeschna grandis, collected near Montreal and is described and illustrated.Perezia legeri Paillot has been observed in larvae of Pieris brassicae.These appear to be the first records of Perezia from insects in North America, and the zoogeographical distribution of the genus is extended to the Odonata.Gurleya aeschnae n.sp, is described from a nymph of Aeschna grandis. It is the first species of Gurleya to be described from the Odonata and the first record of the genus from the North American continent.Thelohania corethrae Schuberg & Rodriguez is described from the larvae of Chaoborus flavicans. Measurements of the parasite, which were lacking in the original description, are now supplied.Thelohania bracteata from larvae of Simulium bracteatum and larvae and one adult S. venustum and Thelohania fibrata from larvae of Simulium venustum are recorded from places in the Province of Quebec. The need of reinvestigation of the species of Thelohania from various Simulium and the possibility of there being but one species, Thelohania varians Debaisieux, are indicated.Thelohania legeri Hesse is recorded as a parasite of larvae of Anopheles punctipennis in Quebec Province and of A. gambiae in Zululand. It is probably the most widely distributed species of Thelohania, occurring in Anophelines in Europe, Asia, Africa and North America.Some general remarks regarding zoogeographical distribution, habitat, host-specificity and possible origin of species and varieties in connexion with Gurleya, Perezia and Thelohania are presented.

Taxonomic revision of the ciliate genus Zosterodasys Deroux, 1978 (Protista: Ciliophora: Synhymeniida)

Zootaxa ◽  
2012 ◽  
Vol 3345 (1) ◽  
pp. 34 ◽  
Author(s):  
PETER VĎAČNÝ ◽  
EVA TIRJAKOVÁ
Keyword(s):  
Cell Surface ◽  
Type Species ◽  
Taxonomic Revision ◽  
Original Description ◽  
Ventral Side ◽  
Nominal Species ◽  
Morphological Taxonomy ◽  
As Species ◽  
The Right ◽  
Species Inquirendae

The ciliate genus Zosterodasys was established with Z. agamalievi as the type species by Deroux (1978). Zosterodasys ischaracterized by (i) an obovoidal to ellipsoidal body which is not differentiated into a rostrum anteriorly; (ii) a conspicuouscyrtos, i.e., an obconical cytopharyngeal apparatus; and (iii) a special thickly ciliated structure, the so-called synhymenium,extending obliquely from the left to the right dorsal cell surface across the ventral side and thus interrupting all ventral ciliaryrows and some dorsal ones. Altogether 31 nominal species were originally described or subsequently combined withZosterodasys. However, we recognize only nine of them as reliable Zosterodasys species, eleven represent nomenclaturalsynonyms, one is a junior primary homonym, five are classified as species inquirendae, and five belong to other genera. Weprovide the following data for each reliable Zosterodasys species: author, date, and journal page of the original description; listof synonyms; diagnosis; type locality; type material; etymology; and remarks. Based on the morphologic and morphometriccharacters, we prepared an illustrated taxonomic key, containing all Zosterodasys species considered identifiable in this revision. Further, we discuss characters that have been used in the morphological taxonomy of the genus Zosterodasys.

A new species of the genus Tropodiaptomus (Copepoda, Diaptomidae, Diaptominae) from Nepal

Crustaceana ◽  
2014 ◽  
Vol 87 (4) ◽  
pp. 430-447
Author(s):  
Dara Ambedkar ◽  
Bandari Elia
Keyword(s):  
New Species ◽  
First Record ◽  
Indian Species ◽  
Distal Margin ◽  
Small Spine ◽  
Critical Comparison ◽  
Freshwater Pond ◽  
The Right ◽  
The Village ◽  
A New Species

A new species, Tropodiaptomus defayeae n. sp. from Nepal, is herein proposed for inclusion in the genus Tropodiaptomus. This is the first record of the genus from Nepal. The new species is described and illustrated based on two males and two females collected from a permanent freshwater pond in the village Ankidha near Khatmandu, Nepal. A critical comparison of the new species with its known congeners has revealed close similarity with Tropodiaptomus ruttneri (Brehm, 1923). However, it is distinguishable by characters of the male P5 such as: (1) a thick basipod in the right P5, which is as long as wide, and has an unusually large thumb-like hyaline lobe close to the inner margin on its posterior face; (2) a small spine and a narrow hyaline lamella on the inner margin; and (3) the basipod of the left P5 has a large hyaline lamella on the inner distal margin. Besides the description of T. defayeae, brief notes on the ecology and zoogeography of the genus are also given. A key for the identification of the Indian species of Tropodiaptomus, including also the new species, is provided at the end of this paper.

scholarly journals New morphological and molecular data on the little-known pontellid Calanopia media Gurney, 1927 (Crustacea, Copepoda, Calanoida) from the Red Sea, with notes on its diel vertical distribution

ZooKeys ◽  
2020 ◽  
Vol 922 ◽  
pp. 13-33
Author(s):  
Mohsen M. El-Sherbiny ◽  
Mamdouh A. Al-Harbi
Keyword(s):  
Red Sea ◽  
Dna Sequences ◽  
Calanoid Copepod ◽  
Original Description ◽  
Molecular Data ◽  
Morphological And Molecular Data ◽  
The Right ◽  
Female Genital ◽  
Diel Vertical Distribution ◽  
Collection Program

As a part of the routine neritic zooplankton collection program in Obhur Creek (central Red Sea, Saudi Arabia), specimens of a pontellid calanoid copepod, Calanopia media Gurney, 1927, were observed and studied. Since the original description was rather brief and drawings limited, especially of mouthparts and legs, which were not illustrated and described, the species is here fully redescribed. Red Sea specimens showed considerable variation in the female genital compound somite, the right caudal ramus and leg 5, as well as in the presence of a medial knob ventrally on the male right prosomal corner. DNA sequences of mtCOI of different specimens did not show any significant differences and supported their identity as one species. Calanopia media exhibited clear diel vertical migration, with high densities of 106 and 150 ind. m-3 during sunset (6:00 pm; UTC+3) and midnight (12:00 am; UTC+3) collections, respectively. However, this species was not observed in other zooplankton collections from the surface to 20 m depth, at 6:00 am and 12:00 pm (UTC+3).

scholarly journals Naturalization and spread of the alien species Ozognathus cornutus (LeConte, 1859) (Coleoptera: Ptinidae: Ernobiinae) in Italy

2021 ◽  
Author(s):  
Giuliano Cerasa ◽  
Gabriella Lo Verde
Keyword(s):  
North America ◽  
Fruits And Vegetables ◽  
First Record ◽  
The Other ◽  
Ecological Role ◽  
Dried Fruits ◽  
Wood Shavings ◽  
Potential Pest ◽  
Small Wood ◽  
Natural Barrier

AbstractOzognathus cornutus (LeConte, 1859) (Coleoptera: Ptinidae: Ernobiinae), species native to North America, is a saproxylophagous species and is known to feed on decaying tissues within conspicuous galls and on vegetal decaying organic material such as dried fruits or small wood shavings and insect excrements in galleries made by other woodboring species. A few years after the first record in 2011, its naturalization in Italy is here reported. The insect was found as successor in galls of Psectrosema tamaricis (Diptera Cecidomyiidae), Plagiotrochus gallaeramulorum, Andricus multiplicatus and Synophrus politus (Hymenoptera Cynipidae). The galls seem to have played an important ecological role in speeding up the naturalization process. The lowest proportion of galls used by O. cornutus was recorded for P. tamaricis (23%), the only host belonging to Cecidomyiidae, while the percentages recorded for the other host species, all Cynipidae forming galls on oaks, were higher: 43.6%, 61.1% and 76.9% in A multiplicatus, S. politus and P. gallaeramulorum, respectively. Although O. cornutus is able to exploit other substrates like dried fruits and vegetables, for which it could represent a potential pest, it prefers to live as a successor in woody and conspicuous galls, which thus can represent a sort of natural barrier limiting the possible damages to other substrates.

Two new species of Sabellariidae (Annelida, Polychaeta) from the abyss of eastern Australia

Zootaxa ◽  
2020 ◽  
Vol 4821 (3) ◽  
pp. 487-510
Author(s):  
JINGHUAI ZHANG ◽  
PAT HUTCHINGS ◽  
INGO BURGHARDT ◽  
ELENA KUPRIYANOVA
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Benthic Communities ◽  
First Record ◽  
Thoracic Segment ◽  
Distal Margin ◽  
Planktonic Larva ◽  
Eastern Australia ◽  
Two New Species ◽  
Buccal Flap

In May–June 2017 an expedition on board RV ‘Investigator’ sampled benthic communities along the lower slope and abyss of eastern Australia from off Tasmania to the Coral Sea. Over 200 sabellariid specimens of the genera Phalacrostemma and Gesaia were collected during the voyage and deposited in the Australian Museum. Here we describe two new species Gesaia csiro n. sp. (4414–4436 m) and Phalacrostemma timoharai n. sp. (1013–1093 m). We did not formally describe another species of Phalacrostemma due to poor condition of the single specimen. Gesaia csiro n. sp. is the first record of the genus from Australian waters (only a planktonic larva attributed to the genus has previously been recorded), and it can be distinguished from other congeners by the smooth surface of inner paleae, distal thecae of outer paleae with long, irregular and expanded distal fringe and circled distal margin. Phalacrostemma timoharai n. sp. differs from congeners by the following combination of characters: presence of the buccal flap, absence of tentacular filament, 18–22 pairs of outer paleae, two pairs of neuropodial cirri on first thoracic segment, and only one pair of lateral lobes on second thoracic segment. Morphological descriptions are accompanied by mitochondrial cytochrome c oxidase subunit 1 (COI) and ribosomal (16S, 18S and 28S) sequence data. A key to all Australian species of sabellariids is given.

The genus Trophomera Rubtsov & Platonova, 1974 with description of T. litoralis sp. n. (Nematoda: Benthimermithidae) from the tidal zone of the Kuril Archipelago and proposal of Benthimermis Petter, 1980 as a junior synonym

Nematology ◽  
2006 ◽  
Vol 8 (3) ◽  
pp. 411-423 ◽  
Author(s):  
Dmitry M. Miljutin
Keyword(s):  
Body Length ◽  
Original Description ◽  
Junior Synonym ◽  
Zoological Nomenclature ◽  
Nominal Species ◽  
Tidal Zone ◽  
Annotated List ◽  
The Family ◽  
Tail Shape ◽  
Emended Description

Abstract The type species of Trophomera, T. iturupiensis, is redescribed from type material and important errors in the original description corrected. As a result of this emended description, Benthimermis is proposed as a junior synonym of Trophomera and its species transferred accordingly. The family name Benthimermithidae is retained according to articles 23.1 and 40.1 of the International Code of Zoological Nomenclature. Trophomera is diagnosed and an annotated list of nominal species presented. Trophomera litoralis sp. n., collected from the tidal zone of Ushishir Island (Kuril Archipelago), is described on the basis of four males. The males of T. litoralis sp. n. differ from those of other Trophomera species primarily by the much higher number of precloacal supplementary organs (105-108 vs 2-68). Trophomera litoralis sp. n. is most similar to T. regalis comb. n. yet differs by shorter body length (5.8-9.3 vs 14.9 mm), body proportions (a = 67-107 vs 124.4; c = 61-97 vs 135.7), greater length of the intermediate spermatoduct between the anterior and posterior testes (ca 1/7th vs ca 1/140th of body length), tail shape (rounded conoid vs pointed conoid), and number of precloacal supplementary organs (105-108 vs 49).

Sign in / Sign up

Export Citation Format

Share Document