New species of the genus Isorropodon (Bivalvia: Vesicomyidae: Pliocardiinae) from cold methane seeps at Nyegga (Norwegian Sea, Vøring Plateau, Storrega Slide)

2011 ◽  
Vol 91 (5) ◽  
pp. 1135-1144 ◽  
Author(s):  
E.M. Krylova ◽  
A.V. Gebruk ◽  
D.A. Portnova ◽  
C. Todt ◽  
H. Haflidason
Keyword(s):  
New Species ◽  
Continental Margin ◽  
Shell Morphology ◽  
Methane Seep ◽  
Methane Seeps ◽  
Norwegian Sea ◽  
The North ◽  
The Family ◽  
North Eastern ◽  
A New Species

A new species of vesicomyid bivalve (Isorropodon nyeggaensis sp. nov.) is described based on shell morphology, from the Nyegga cold methane seep area on the Norwegian continental margin. This is the first description of vesicomyids from the Norwegian Sea and the northernmost record of recent representatives of the family Vesicomyidae. A dispersion of the genus into the Norwegian Sea basin from the north-eastern Atlantic is suggested. A brief description of other macrofauna from methane seep sites at Nyegga is also given.

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.

scholarly journals Encephalartos verrucosus (Zamiaceae): a new species from the north-eastern Transvaal

1988 ◽  
Vol 54 (5) ◽  
pp. 487-490 ◽  
Author(s):  
P.J. Robbertse ◽  
Suzelle van der Westhuizen ◽  
P. Vorster
Keyword(s):  
New Species ◽  
The North ◽  
North Eastern ◽  
A New Species

A New Gunnel, Pholis clemensi, from the Coast of Western North America

1964 ◽  
Vol 21 (5) ◽  
pp. 933-939 ◽  
Author(s):  
Richard H. Rosenblatt
Keyword(s):  
British Columbia ◽  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Western North America ◽  
The North ◽  
The Family ◽  
Juan De Fuca ◽  
A New Species

A new species, Pholis clemensi, referred to the family Pholidae, is named and described from 12 specimens taken in southern British Columbia waters and the Strait of Juan de Fuca. Pholis clemensi is compared with other members of the genus, and a key is given to the North American species.

Eucalyptus fusiformis (Myrtaceae), a new species of Ironbark (in the Informal E. series Paniculatae Pryor et Johnson) from North-eastern NSW.

Brunonia ◽  
1987 ◽  
Vol 10 (2) ◽  
pp. 201
Author(s):  
DJ Boland ◽  
DA Kleinig ◽  
JJ Brophy
Keyword(s):  
New Species ◽  
New South ◽  
Conservation Status ◽  
North Coast ◽  
Volatile Oils ◽  
The North ◽  
South Wales ◽  
North Eastern ◽  
A New Species

A new species, Eucalyptus fusiformis Boland et Kleinig, from the north coast of New South Wales is described. Its taxonomic position is in E. subgenus Symphyomyrtus series Paniculatae following the informal classification of eucalypts proposed by Pryor and Johnson (1971). E. fusiformis is characterised by its flowers, fruits and adult leaves. In the bud the staminal filaments are fully inflected while the androecium has outer staminodes and the anthers are cuboid and adnate. The fruits are narrow, often truncate fusiform, tapering into long slender pedicels. The adult leaves are dull grey, concolorous and hypoamphistomatic. The species resembles the more numerous and often co-occurring ironbark E. siderophloia which has similar adult and seedling leaves. The volatile oils of both species are very similar. The ecology, distribution, taxonomic affinities and conservation status are discussed.

scholarly journals Setaphyes elenae sp. nov., a new species of mud dragon (Kinorhyncha: Allomalorhagida) from Skagerrak (north-eastern Atlantic Ocean)

2020 ◽  
Author(s):  
Diego Cepeda ◽  
Alberto González-Casarrubios ◽  
Nuria Sánchez ◽  
Fernando Pardos
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
The North ◽  
Eastern Atlantic Ocean ◽  
North Eastern ◽  
Males And Females ◽  
Established Genus ◽  
A New Species

Meiofauna sampling in the proximity of Syd-Hällsö Island (Strömstad, Sweden) revealed a new species of Kinorhyncha from the Skagerrak. The species, Setaphyes elenae sp. nov., is distinguished from its congeners by the arrangement of the middorsal cuticular specializations (it has shortened, distally rounded middorsal processes on segments 1 and 9 and middorsal elevations throughout segments 2–8), as well as by the presence of paired laterodorsal setae on segments 3, 5, 7 and 9 and ventromedial setae on segments 3, 5 and 7 in both males and females. The finding of a new species from the north-eastern Atlantic Ocean, provides new valuable information for the recently established genus in the Allomalorhagida.

A new species of the asteroid genus Betelgeusia (Echinodermata) from methane seep settings, Late Cretaceous of South Dakota

2018 ◽  
Vol 92 (2) ◽  
pp. 196-206 ◽  
Author(s):  
Daniel B. Blake ◽  
William K. Halligan ◽  
Neal L. Larson
Keyword(s):  
New Species ◽  
South Dakota ◽  
North Pacific Ocean ◽  
Phylogenetic Analyses ◽  
Comparative Morphology ◽  
Molecular Study ◽  
Methane Seep ◽  
Crown Group ◽  
The North ◽  
The Family

AbstractBetelgeusia brezinai new species (Radiasteridae, Paxillosida, Asteroidea) is described from diversely fossiliferous Upper Cretaceous methane seep deposits of South Dakota. Asteroids are rare at modern chemosynthetic settings, although a hydrothermal vent occurrence is known, and two possible fossil methane seep occurrences have been reported. The Radiasteridae is important to the interpretation of crown-group asteroid phylogeny. Two extant genera are assigned to the family: Radiaster is known from relatively few but geographically widely dispersed largely deeper-water settings, and Gephyreaster is uncommon over a range of depths in the North Pacific Ocean. Jurassic and Cretaceous radiasterids have been described from geographically widely separated localities. In morphological-based phylogenetic analyses, the Radiasteridae has been assigned to the order Paxillosida, and Gephyreaster is similarly placed in a molecular evaluation; Radiaster has not yet been treated in a molecular study. In molecular treatment, an approximately traditional Paxillosida is a sister taxon to a significant part of the traditional Valvatida. Comparative morphology of Mesozoic and extant asteroids enables a hypothesis for a stemward, Mesozoic paxillosidan.

ASTERACEAE

Bothalia ◽  
1989 ◽  
Vol 19 (1) ◽  
pp. 27-31 ◽  
Author(s):  
F. Brusse
Keyword(s):  
New Species ◽  
The North ◽  
North Eastern ◽  
A New Species

A NEW SPECIES OF INEZIA (ANTHEMIDEAE) FROM THE NORTH-EASTERN TRANSVAAL

A new genus and a new species of Tropidopolinae (Orthoptera: Acrididae) from India

ENTOMON ◽  
2019 ◽  
Vol 44 (3) ◽  
pp. 191-196
Author(s):  
Mohd. Imran Khan ◽  
Mohd. Kamil Usmani
Keyword(s):  
New Species ◽  
New Genus ◽  
Species Level ◽  
Female Genitalia ◽  
Eastern Region ◽  
New Genus And Species ◽  
Male And Female ◽  
The North ◽  
North Eastern ◽  
A New Species

A new genus Neooxyrrhepes gen. n. with a new species Neooxyrrhepes meghalayensis n. from Meghalaya, a state of the North Eastern region of India. Description and illustrations of the new genus and species are given. A key to the genera of subfamily Tropidopolinae from North Eastern states of India is also provided. Additonally the characters of male and female genitalia at generic and species level are also given.

Additions and Revisions to the Genera of North American Caddisflies of the Family Brachycentridae With Special Reference to the Larval Stages (Trichoptera)

1965 ◽  
Vol 97 (10) ◽  
pp. 1089-1106 ◽  
Author(s):  
Glenn B. Wiggins
Keyword(s):  
New Species ◽  
North American ◽  
Larval Stage ◽  
New Genus ◽  
New Genera ◽  
Larval Morphology ◽  
Larval Stages ◽  
The North ◽  
The Family ◽  
A New Species

AbstractLarval characterizations for the genera of North American Brachycentridae are revised and two new genera created, bringing to five the total number now recognized on this continent. Previous concepts of larval morphology inMicrasemaare emended. Discovery of the larval stage ofBrachycentrus(Amiocentrus)aspilusRoss necessitates elevation of this subgenus to generic status. Association of larvae with the two North American species placed inOligoplectrumnecessitates removal of one,O.dimicki(Milne), toMicrasema. Discovery of all stages of a new species on Mount Hood, Oregon, necessitates creation of a new genus. A provisional larval key to the genera of the North American Brachycentridae is proposed and the phylogenetic relationships of the genera are discussed. Validity of the Asian genusOligoplectrodesis questioned.

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