scholarly journals Free-living nematodes from the deep-sea Håkon Mosby Mud Volcano, including the description of two new and three known species

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 197-213 ◽  
Author(s):  
DARIA PORTNOVA
Keyword(s):  
New Species ◽  
Body Length ◽  
Deep Sea ◽  
Original Description ◽  
Mud Volcano ◽  
Free Living ◽  
Drop Shape ◽  
Norwegian Sea ◽  
The One ◽  
Short Body

Two new and three known species of the genera Aponema Jensen, 1978, Molgolaimus Ditlevsen, 1921, Sabatieria Rouville, 1903, and Terschellingia De Mann, 1888 were found at the deep-sea Håkon Mosby Mud Volcano, at a depth of 1250m, in the Norwegian Sea. Aponema ninae sp. n. is characterized by short body length, short spicules, gubernaculum with wide apophyses, which are bevelled on the top, and long narrowed tail with drop-shape thickened tip and caudal setae. The new species most resembles Aponema torosa (Lorenzen, 1973). Molgolaimus haakonmosbiensis sp. n. differs from all other species of Molgolaimus by shape and length of spicules; relations of spicule length to the anal body diameter; presence of two supplements. Spicules of the new species are short (30.5 µm), slender, twisted with amplate and excurved proximal parts. The appearance of our specimen of Sabatieria ornata fits well with the original description of Ditlevsen, 1918. Specimens of Terschellingia distlamphida Juario, 1974 also fit the original description based on nematodes sampled from the sub littoral of the German Bight. However, the Norwegian specimens have a shorter (1010 µ m vs. 1343 µ m) and thicker body (a=64.6 µ m vs. a=32.0 µm). The Håkon Mosby specimens of Terschellingia longicaudata De Mann, 1907 differ from the original description in body length and thickness: 1094 µm vs. 1429 µm, and a=22.3 µm vs. 49.0 µm correspondingly, but agree with descriptions by other authors, especially with the one by Chitwood (1951).

Two new species of Sabatieria (Nematoda, Comesomatidae) from Golfo Nuevo, Chubut (Argentina)

Zootaxa ◽  
2003 ◽  
Vol 172 (1) ◽  
pp. 1 ◽  
Author(s):  
CATALINA T. PASTOR DE WARD
Keyword(s):  
New Species ◽  
Body Length ◽  
Cylindrical Part ◽  
San Jose ◽  
Spicule Length ◽  
Body Diameter ◽  
Two New Species ◽  
Tail Shape ◽  
Short Body

Two new Comesomatidae species from the Gulfs of San José and San Matías, Chubut province of Argentina are described. Sabatieria flecha sp. n. is characterized by the particular shape of the dorsal distal end of the spicule, smaller spicule length (47 μm; 1.5 anal body diameter), number of weakly cuticularised supplements (12), size of amphids with two and a half turns, short body length (1260 μm), values of a (36) and b (7,8) and tail shape with 1/3 cylindrical part. Sabatieria sanjosensis sp. n. is characterized by a long body length (3000 μm), large value for a (82) and tail shape with 1/2 cylindrical part.

New species of Hopperia (Nematoda, Comesomatidae) and Metachromadora (Nematoda, Desmodoridae) from Patagonia, Chubut, Argentina

Zootaxa ◽  
2004 ◽  
Vol 542 (1) ◽  
pp. 1 ◽  
Author(s):  
CATALINA T.P. DE WARD
Keyword(s):  
New Species ◽  
Body Length ◽  
De Man ◽  
Short Body

One new Comesomatidae species and one new Desmodoridae species from the Gulfs of San Jos and San Mat as, Chubut province are described: Hopperia patagonica sp. n. is characterized by the shape of odontia on anterior end (one big and two smaller teeth on each); odontia length in relation to the amphid length; values of b and R3, short body length (L: 1370 1500 m) and the de Man s ratios ( b: 10.3 11.7). Metachromadora zaixsi sp. n. is characterized by the absence of pre-cloacal supplements, the presence of four cephalic setae and the de Man s ratios (b: 4.7 7.2). Keys are provided for both species.

scholarly journals A new genus and five new species of the subfamily Florarctinae (Tardigrada, Arthrotardigrada)

2021 ◽  
Vol 762 ◽  
Author(s):  
Jesper G. Hansen ◽  
Reinhardt M. Kristensen
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
North Atlantic ◽  
Deep Sea ◽  
Type Species ◽  
New Genus ◽  
North Atlantic Ocean ◽  
Original Description ◽  
Additional Information ◽  
South Pacific Ocean

A new genus Higginsarctus gen. nov. in the subfamily Florarctinae Renaud-Mornant, 1982 (Arthrotardigrada) is established on the basis of the type species H. signeae gen. et sp. nov. described from carbonated sand habitats from Faroe Bank, North Atlantic Ocean. Three other Atlantic species H. laurae gen. et sp. nov., H. martini gen. et sp. nov. and H. shintai gen. et sp. nov. are described from Dentalium sand, Roscoff, France and finally H. lassei gen. et sp. nov. is described from the deep sea in the South Pacific Ocean off the coast of Chile. The recently described species Ligiarctus alatus Gomes-Júnior, E. Santos, da Rocha, P.J.P. Santos & Fontoura, 2018 is investigated and compared with the type species Ligiarctus eastwardi Renaud-Mornant, 1982. New and additional information to the original description of L. alatus is provided and this species is moved to Higginsarctus gen. nov. as H. alatus comb. nov.

Description of two new species of Iotonchium Cobb, 1920 (Tylenchida: Iotonchiidae) from Japan

Nematology ◽  
2005 ◽  
Vol 7 (6) ◽  
pp. 789-801 ◽  
Author(s):  
Kazuyoshi Utai ◽  
Kaku Tsuda
Keyword(s):  
New Species ◽  
Body Length ◽  
Fruiting Bodies ◽  
Postcloacal Papilla ◽  
Parasitic Female ◽  
Two New Species ◽  
Fungus Gnat ◽  
Cloacal Opening ◽  
Short Body

AbstractTwo new Iotonchium species are described from Japan. These species possesses four adult forms; mycetophagous female, infective female, male and insect-parasitic female. Iotonchium laccariae n. sp. is characterised by short body length of all adult forms, right-angled L-shaped spicule with beak-like distal arm, a pair of large papillae anterior to the cloacal opening, the dorso-ventrally flattened head of male and the reproductive features of the parasitic female. The mycetophagous females of I. laccariae n. sp. inhabit the fruiting bodies of four Laccaria spp. Males and infective females were also obtained from the fruiting bodies. The insect-parasitic females of I. laccariae n. sp. inhabit the haemocoel of a fungus gnat, Allodia laccariae. Iotonchium russulae n. sp. is characterised by the long body length of the infective female, parasitic female and mycetophagous female, obtuse-angled L-shaped spicule with dorsally curved slender distal arm, a pair of bifid postcloacal papillae, presence of a mid-ventral postcloacal papilla in the male and reproductive features of the parasitic female. The mycetophagous females, males and infective females of I. russulae n. sp. were obtained from the fruiting bodies of three Russula spp. and two Lactarius spp. The insect-parasitic females of I. russulae n. sp. inhabit the haemocoel of A. bipexa, a species of fungus gnat.

scholarly journals On the bicoecidae: a family of colourless flagellates

1941 ◽  
Vol 230 (575) ◽  
pp. 451-473 ◽  
Keyword(s):  
New Species ◽  
Original Description ◽  
Distinct Species ◽  
The Other ◽  
The One ◽  
To Receive ◽  
A New Species

Two distinct species appear to have been confused by James-Clark in his original description of Bicoeca lacustris . The two forms have been re-examined and photographed. It is suggested that the differences between them justify their separation into two species, as suggested by Stoic, the one form to retain the name B. lacustris , the other to receive that of B. vacillans Stoic. A new species, B. maris , is described, and the affinities of the Bicoecidae, Bodonidae and Craspedomonadidae are discussed.

Amoeba taylorae n.sp

1955 ◽  
Vol s3-96 (35) ◽  
pp. 375-381
Author(s):  
CATHERINE HAYES
Keyword(s):  
New Species ◽  
Transmitted Light ◽  
Contractile Vacuole ◽  
Large Nucleus ◽  
Free Living ◽  
Black Background ◽  
Small Crystals ◽  
The One ◽  
A New Species

In material collected from Tannoch Loch, Dunbartonshire, a large free-living, hitherto undescribed amoeba was found. Individual specimens vary in length from 420 to 500µ and in width from 70 to 140µ. Viewed over a black background this amoeba looks dense, white, and opaque, while in transmitted light it has a dusky, almost black, hue, due to the presence in the endoplasm of a large number of small crystals uniform in size, slender and pointed at both ends. There is always a uroid at the hinder end surrounded by bits of debris. The one large nucleus is without a karyosome but has masses of chromatin scattered through the nuclear substance. As a rule there is only one large contractile vacuole, but occasionally a few small ones may be seen at the hinder end. A certain number of nutritive spheres are always present. The author considers this amoeba to be a new species and names it Amoeba taylorae.

scholarly journals Microcope gen. nov.—a new deep-sea genus of Munnopsidae (Crustacea, Isopoda,Asellota), with description of two new species from the Southern Hemisphere

Zootaxa ◽  
2008 ◽  
Vol 1866 (1) ◽  
pp. 555 ◽  
Author(s):  
MARINA V. MALYUTINA
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Genus ◽  
Northwestern Pacific ◽  
Atlantic Sector ◽  
Incertae Sedis ◽  
Two New Species ◽  
Cape Basin ◽  
The One ◽  
Oval Body

A new genus of Munnopsidae Lilljeborg, Microcope gen. nov., is described including Eurycope ovata Birstein, 1970 from the northwestern Pacific, and two new species, collected in the Cape Basin, and Atlantic Sector of the Southern Ocean. The new genus combines characters common for some genera of Eurycopinae Hansen and Betamorphinae Kussakin, but cannot be related to any known genus of the existing subfamilies and, thus, still remains incertae sedis. Microcope gen. nov. is characterized by minute eurycopine-like broad oval body with fused pereonites 5–7 on the one hand, and betamorpha-like face, pereopods 2–4 and uropods, with extended distomedial projection of the protopod on the other hand. The following combination of characters distinguishes the new genus: short head hidden under the anterior flange of pereonite 1, absence of rostrum, slender male pleopods 2, flattened female pleopod 2, and distinct shape and armament of pereopods 5–7 and pleopod 3. The descriptions of Microcope gen. nov., as well as the two new species, M. denticulate sp. nov., and M. levissima sp. nov., are presented.

Rediscovery and revision of Foenobethylus Kieffer, 1913  (Hymenoptera, Bethylidae)

Zootaxa ◽  
2007 ◽  
Vol 1546 (1) ◽  
pp. 1-14 ◽  
Author(s):  
GERGELY VÁRKONYI ◽  
ANDREW POLASZEK
Keyword(s):  
New Species ◽  
Natural History ◽  
Type Species ◽  
Original Description ◽  
Natural History Museum ◽  
History Museum

The bethylid genus Foenobethylus Kieffer, 1913, unstudied for almost a century, is redescribed and assigned to the subfamily Pristocerinae based on a preliminary phylogenetic assessment. Four new species: F. bidentatus n. sp. (Brunei), F. elongatus n. sp. (Malaysia), F. emiliacasellae n. sp. (Thailand), and F. thomascokeri n. sp. (Malaysia) are described, based on males only, as females remain unrecognised in this genus. All specimens are deposited in the Department of Entomology, the Natural History Museum, London, U.K. The type species F. gracilis Kieffer (Philippines), although unrepresented by any traceable specimen, can be distinguished from these species based on the original description. A key to the five known species of Foenobethylus is provided.

Perspiria boucheri sp. nov. (Nematoda, Desmodorida) from the East China Sea

Zootaxa ◽  
2019 ◽  
Vol 4695 (2) ◽  
pp. 195-200
Author(s):  
JING SUN ◽  
HONGXIU ZHAI ◽  
YONG HUANG
Keyword(s):  
New Species ◽  
East China Sea ◽  
Buccal Cavity ◽  
Nematode Species ◽  
East China ◽  
Similar Species ◽  
Marine Nematode ◽  
The East China Sea ◽  
Free Living ◽  
China Sea

A new free-living marine nematode species from marine sediments in the East China Sea, is described here as Perspiria boucheri sp. nov. The new species is characterized by amphideal fovea surrounded partially by body annulations; four cephalic setae stout; conical buccal cavity with a minute dorsal tooth and two ventrosublateral teeth; pharynx with a pyriform terminal bulb; tail elongated, conical with 3/4 posterior cylindrical portion which having distinct coarse annulations; spicules strongly curved with narrow ventral velum, handle-shaped proximally; gubernaculum canoe-shaped, without apophysis. The new species differs from the most similar species Perspiria striaticaudata (Timm, 1962) by strongly curved spicules with handle-shaped proximal end, gubernaculum without dorsal apophysis and relatively shorter tail. Updated key to all species of Perspiria is provided. 

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