A Nomenclatural Review of Dreissena (Bivalvia: Dreissenidae), with Identification of the Quagga Mussel as Dreissena bugensis

1994 ◽  
Vol 51 (7) ◽  
pp. 1474-1484 ◽  
Author(s):  
Gary Rosenberg ◽  
Michael L. Ludyanskiy
Keyword(s):  
Original Description ◽  
The Black Sea ◽  
Quagga Mussel ◽  
Adult Size ◽  
Paleontological Institute ◽  
Type Specimens ◽  
Separate Species ◽  
Dreissena Bugensis ◽  
Living Species

A review of systematic literature and examination of type material of Dreissena (Paleontological institute, Moscow) revealed that the quagga mussel corresponds to the original description and type specimens of Dreissena bugensis Andrusov, 1897. Russian classifications have treated D. bugensis as a full species or as a subspecies of D. rostriformis Deshayes, 1838. Dreissena rostriformis is the type species of the subgenus Pontodreissena. Dreissena rostriformis rostriformis is regarded as extinct, with two lineages derived from it still living: Dreissena bugensis, in the Dnieper and Bug rivers and the estuary where they enter the Black Sea, and D. rostriformis grimmi, in the southern Caspian Sea. These lineages differ in morphology, coloration, maximum adult size, and salinity tolerance and are therefore regarded as separate species. We adopt the name Dreissena (Pontodreissena) bugensis for the quagga mussel and designate and illustrate lectotypes for D. bugensis and other dreissenid taxa named by Andrusov. Including D. rostriformis and D. bugensis, seven living species of Dreissena are currently recognized. The nomenclatural histories of these species are summarized and the supraspecific classification of dreissenids is reviewed.

Identification of the Great Lakes Quagga Mussel as Dreissena bugensis from the Dnieper River, Ukraine, on the Basis of Allozyme Variation

1994 ◽  
Vol 51 (7) ◽  
pp. 1485-1489 ◽  
Author(s):  
Adrian P. Spidle ◽  
J. Ellen Marsden ◽  
Bernie May
Keyword(s):  
Great Lakes ◽  
Lake Erie ◽  
Allozyme Variation ◽  
Morphological Characters ◽  
The Black Sea ◽  
Quagga Mussel ◽  
Allozyme Data ◽  
Dreissena Bugensis ◽  
The North ◽  
Deep Waters

The discovery of a second dreissenid species, the quagga mussel, in the Great Lakes in 1991 prompted a search for its identity. We have identified the North American quagga mussel as Dreissena bugensis Andrusov on the basis of allozyme data and morphological characters. Further, a phenotypically distinct form of the quagga mussel found in Lakes Erie and Ontario also matches the electrophoretic profiles of the typical Lake Ontario quagga and European D. bugensis. We confirm that the white "profunda" mussel found in the deep waters of Lake Erie is a phenotype of the quagga mussel, and we conclude that the quagga mussel is D. bugensis which has been introduced from the Black Sea drainage of Ukraine.

A genetic and morphological comparison of shallow- and deep-water populations of the introduced dreissenid bivalve Dreissena bugensis

1998 ◽  
Vol 76 (7) ◽  
pp. 1269-1276 ◽  
Author(s):  
W Trevor Claxton ◽  
Anthony B Wilson ◽  
Gerry L Mackie ◽  
Elizabeth G Boulding
Keyword(s):  
Dreissena Polymorpha ◽  
Mitochondrial Gene ◽  
Shell Height ◽  
Shell Morphology ◽  
Quagga Mussel ◽  
Morphological Comparison ◽  
Separate Species ◽  
Dreissena Bugensis ◽  
Shell Mass ◽  
Dreissenid Mussel

The discovery of a morphologically distinct dreissenid mussel in the profundal zone of Lake Erie suggests the presence of either a third dreissenid mussel species in the Great Lakes or a previously unknown morphological phenotype of an existing dreissenid species. We examined the morphometrics and molecular systematics of the zebra mussel (Dreissena polymorpha) and the profundal and epilimnetic forms of the quagga mussel (Dreissena bugensis) from Lakes Erie and Ontario. In an attempt to resolve the taxonomic status of the profundal form of the quagga mussel, we sequenced a 710 base pair fragment of the cytochrome oxidase subunit I mitochondrial gene of the two forms of the quagga mussel. No nucleotide differences were found, supporting the hypothesis that the profundal form of the quagga mussel is a phenotype of D. bugensis, not a separate species. In contrast, the second and third principal component scores from an analysis of the morphological variables shell length, shell width, shell height, and shell mass separated the epilimnetic and profundal forms of the quagga mussel into two groups, but grouped zebra mussels from all depths together. The most parsimonious explanation for our results is that D. bugensis shows plasticity in shell morphology with respect to depth, whereas D. polymorpha does not.

The types of Chalcid wasps (Hymenoptera, Chalcidoidea), described by scientists of Schmalhausen Institute of Zoology of National Academy of sciences of Ukraine after 2012

2018 ◽  
Vol 14 (1) ◽  
pp. 25-34
Author(s):  
M. D. Zerova ◽  
S. A. Simutnik ◽  
V. N. Fursov ◽  
S. I. Klymenko ◽  
I. T. Stetsenko
Keyword(s):  
Original Description ◽  
National Academy Of Sciences ◽  
Type Specimens ◽  
Academy Of Sciences

The list of type specimens of chalcid wasps of four families (Eurytomidae, Torymidae, Ormyridae, Encyrtidae) described by experts of Schmalhausen Institute of Zoology of National Academy of Sciences after 2012 is given. Data of original labels and reference to original description are given for each taxon. The catalogue includes types of 41 nominal taxa: Eurytomidae (15): Nikanoria deserta Zer., N. halimodendrae Zer., N. kazakhstanica Zer., N. leleji Zer., N. mongolica punctata Zer., N. orski Zer., N. pygmaea Zer., N. sugonjaevi Zer., Parabuchophagus rasnitsyni Zer., Eurytoma gleditsiae Zer. et Furs., E. koreana Zer. et Furs., E. trjapitzini Zer. et Klym., Torymidae (5): Idiomacromerus artusis Zer., I. persimilis Zer., Adontomerus centaurei Zer., A. trjapitzini Zer., Torymus leleji Zer. et Furs., Ormyridae (8): Ormyrus askanicus Zer., O. kasparyani Zer., O. nitens Zer., O. novus Zer., O. punctellus Zer., O. qurrayahi Zer., O. spadiceus Zer., O. sugonjaevi Zer., Encyrtidae (13): Rovnosoma gracile Simut., Eocencnemus sugonjaevi Simut., E. vichrenkoi Simut., Eocencyrtus zerovae Simut., Microterys ashkhabadensis mediterraneus Simut., M. hermonicus Simut., M. nevoi Simut., M. pavliceki Simut., M. vichrenkoi Simut., M. wasseri Simut., Encyrtus sugonjaevi Simut., Echthroplexiella talitzkyi Trjapitzin, Copidosoma trjapitzini Simut. The majority of type specimens are deposited in the collection of Schmalhausen Institute of Zoology (Kyiv, Ukraine). The depositories of all other type specimens are indicated.

Plant communities on rock outcrops in the northwest part of the Black Sea Caucasian coast

2009 ◽  
pp. 3-14
Author(s):  
V. B. Golub ◽  
N. A. Grechushkina ◽  
A. N. Sorokin ◽  
L. F. Nikolaychuk
Keyword(s):  
Plant Communities ◽  
Black Sea ◽  
Soil Cover ◽  
Geographical Location ◽  
The Black Sea ◽  
Rock Outcrops ◽  
Exact Test ◽  
Main Factors ◽  
Phi Coefficient

The classification of petrophytic vegetation of coastal steeps was proposed for the Northwest Cauca­sian coast of the Black Sea using the Braun-Blanquet approach. The main factors that influence the deve­lopment of vegetation in question are abrasion and denudation sea coast processes. The coastal steeps in study area are formed by carbonate flysch. The plant communities occur on rocky slopes with poorly deve­loped soil cover, fine stone chips as well as rock crevices. Nine associations and four communities without syntaxonomic rank were documented in the table and described with respect to their phyto­socio­logical affinities, ecology, and geographical location. Diagnostic species of syntaxa were established using phi-coefficient calculations of fidelity and Fisher’s exact test. In addition, the results of relevé ordination were given using the algorithm of non-metric multi­dimensional scaling (NMS) that is embedded in PC-ORD 5.0 software package.

A revision of Holothuria (Halodeima) kefersteinii (Selenka, 1867) and the revival of Holothuria inornata Semper, 1868 from sea cucumbers collected in Mexico and Central America

Zootaxa ◽  
2018 ◽  
Vol 4377 (2) ◽  
pp. 151 ◽  
Author(s):  
MAGALI HONEY-ESCANDÓN ◽  
FRANCISCO A. SOLÍS-MARÍN
Keyword(s):  
Central America ◽  
Ecological Study ◽  
Original Description ◽  
Morphological Characters ◽  
Color Pattern ◽  
Type Specimens ◽  
Sea Cucumbers ◽  
Mexican Pacific ◽  
Different Color

In 1958 Deichmann synonymized Holothuria inornata Semper, 1868 with Holothuria kefersteinii (Selenka, 1867). This nomenclature has been adopted until now. However, some specimens recently collected from the Mexican Pacific matched the original description of H. inornata Semper (1868) whereas others matched the original description by Selenka (1867). A morphological, molecular and ecological study of the specimens was conducted to confirm the identification of these specimens. The morphological characters of our specimens were compared with those contained in the original descriptions and figures of the types of both species. Besides the different color pattern of live specimens of both species, the main differences found are the presence of straight distally perforated rods in the dorsal papillae, and the presence of Holothuriophilus trapeziformis Nauck, 1880 in the cloaca of H. inornata, versus the absence of these kind of rods in the dorsal papillae, and the absence of symbionts in the cloaca in H. kefersteinii. The species identified by Deichmann (1958) as H. kefersteinii is, in fact H. inornata. Both species might have been confused because the morphology of preserved specimens is very similar and the presence of the straight rods in papillae might have been overlooked during identification. A more thorough review of the ossicles from the specimens, together with the comparison of ossicles from the type specimens, has allowed the resurrection of long-forgotten species, H. inornata 

scholarly journals Effect of airflow on overland transport potential of the invasive quagga mussel (Dreissena bugensis)

2021 ◽  
Vol 12 (1) ◽  
pp. 165-177
Author(s):  
Frank Collas ◽  
Ellen Arends ◽  
Marieke Buuts ◽  
Rob Leuven
Keyword(s):  
Quagga Mussel ◽  
Dreissena Bugensis ◽  
Transport Potential

Lilium saccatum: A new synonym of L. souliei (Liliaceae) for Flora of China

Phytotaxa ◽  
2015 ◽  
Vol 212 (1) ◽  
pp. 102
Author(s):  
Lang-Sheng Yang ◽  
Guo-Qing Zhuang
Keyword(s):  
New Species ◽  
Original Description ◽  
Type Specimens ◽  
New Synonym ◽  
Flora Of China

Lilium saccatum S. Y. Liang (1987: 540) was published in the Flora of Xizangica based on the material of Qinghai-Xizang Expedition (No. 74-3754) collected on July 30th, 1974. In the protologue, the author compared this species to L. souliei (Franchet) Sealy (1950: 296) and indicated that the former had basally saccate tepals compared to the latter, and based on this point the new species was recognized. However, the original description and type specimens of L. souliei has already displayed this feature (Fig. 3J–M in Sealy 1950; our Fig. 1A), until now, this feature has not been listed in both the Flora of Reipublicae Popularis Sinicae (Liang 1980), and Flora of China (Liang & Tamura 2000).

Description of nymph of Brasilocaenis atawallpa Lima, Molineri, Vieira, Pinheiro & Salles, 2019 (Ephemeroptera: Caenidae) and notes on its taxonomic status

Zootaxa ◽  
2021 ◽  
Vol 5027 (1) ◽  
pp. 136-144
Author(s):  
STÊNIO R. S. NASCIMENTO ◽  
PAULO V. CRUZ ◽  
MYLLENA S. L. SILVA ◽  
VIVIANE C. FIRMINO ◽  
LEANDRO S. BRASIL ◽  
...  
Keyword(s):  
Male Genitalia ◽  
Cladistic Analysis ◽  
Taxonomic Status ◽  
Original Description ◽  
Type Specimens ◽  
Nymphal Stage ◽  
Type Series ◽  
Colombian Amazon ◽  
Fore Coxa

Brasilocaenis atawallpa was recently described based on male imago from Colombian Amazon. The original description does not contain a designation of type specimens or locality, and it just states that the type series was studied in order to perform the cladistic analysis. In this context, we herein designate the lectotype and paralectotypes of B. atawallpa and describe its nymphal stage. The nymphs were associated to B. atawallpa by the male genitalia extracted from mature nymphs. The nymphal stage of B. atawallpa can be differentiated from others known nymphs of the genus by absence of pointed microspines on opercular gill, fore coxa without projection, middle coxa with well-developed and semicircular projection, hind coxa with finger-like projection, fore and middle tarsal claws without denticles and hind margin of the ninth sternite almost straight.  

Redescription of the milliped Myrmecodesmus mundus (Chamberlin) (Polydesmida: Pyrgodesmidae)

Zootaxa ◽  
2002 ◽  
Vol 115 (1) ◽  
pp. 1
Author(s):  
ROWLAND M. SHELLEY
Keyword(s):  
Species Group ◽  
High Magnification ◽  
Type Specimens ◽  
Separate Species ◽  
The North ◽  
Anterior Branch

Myrmecodesmus mundus (Chamberlin, 1943), a minute pygrodesmid milliped from Veracruz, Mexico, is redescribed with high magnification drawings of the gonopods of the type specimens. Significant differences appear to exist between the gonopods of the holotype and paratypes, and the latter may warrant recognition as a separate species. The basic gonopodal pattern is similar to that of an undescribed, small-bodied congener occurring some 800 mi (1,280 km) to the north in Texas, USA, and the species appear to be related. The general features of a species group of Myrmecodesmus may be beginning to emerge small-bodied forms with curvilinear telopodites, with or without elaborations, and divided prefemoral processes in which the caudal or anterior branch may be lost. The name Eirenyma Chamberlin, 1943, is available for such an entity.

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