Spirodesma magdae nov. gen. nov. sp. (Nematoda: Desmodoridae) from the Brazilian deep sea (Campos Basin, Rio de Janeiro, Brazil)

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 109-118 ◽  
Author(s):  
MARIANA DA FONSECA CAVALCANTI ◽  
MARIA CRISTINA DA SILVA ◽  
VERÔNICA DA FONSÊCA-GENEVOIS

A new genus and species of Desmodoridae was found in deep-sea sediments of the Campos Basin. Although the cuticle annulation of the new species is similar to members of Desmodorinae, many morphological features are strong enough to classify it within the Spiriniinae. Spirodesma magdae nov. gen. nov. sp. is characterized mainly by the presence of a unique form of unispired amphids, with circular amphideal fovea, and a buccal cavity with three equal teeth, one dorsal and two ventrosublateral.

Zootaxa ◽  
2009 ◽  
Vol 2081 (1) ◽  
pp. 31-45 ◽  
Author(s):  
MARIA CRISTINA DA SILVA ◽  
FRANCISCO JOSÉ VICTOR DE CASTRO ◽  
MARIANA DA FONSECA CAVALCANTI ◽  
VERÔNICA DA FONSÊCA-GENEVOIS

In deep-sea sediments from Campos Basin two new species of Spirinia were found. Spirinia lara sp. n. is mainly characterized by the presence of paired somatic papillae linked to gland cells and distributed all over the body while Spirinia sophia sp. n. possesses an irregular distribution of these glandular somatic papillae.


2003 ◽  
Vol 77 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Martin J. Head ◽  
Geoffrey Norris

Detailed investigation of the essentially complete uppermost Miocene through Lower Pleistocene sequence in Deep Sea Drilling Project (DSDP) Hole 603C, western North Atlantic, has revealed the presence of the new dinoflagellate cyst speciesLejeunecysta hatterasensis, Lejeunecysta interrupta, Corrudinium devernaliae, andPyxidinopsis vesiculata, as well as the acritarchsLeiosphaeridia rockhallensisHead new species andLeffingwellia costatanew genus and species. Independent magnetobiostratigraphic control of DSDP Hole 603C constrains the ranges of these new species.Lejeunecysta interruptan. sp. appears to range no higher than lowermost Pliocene at 5.2 Ma,Pyxidinopsis vesiculatan. sp. has a range top at about 4.5 Ma in the Lower Pliocene,Corrudinium devernaliaen. sp. has a well-defined range of 4.7–4.1 Ma within the Lower Pliocene, andLeiosphaeridia rockhallensisn. sp. has a similarly well-defined range of 4.4–3.9 Ma within the Lower Pliocene. The presence ofLeiosphaeridia rockhallensisn. sp. in the Ramsholt Member of the Coralline Crag Formation, eastern England, supports an Early Pliocene age for this member.


1972 ◽  
Vol 50 (4) ◽  
pp. 371-383 ◽  
Author(s):  
Diana R. Laubitz ◽  
Eric L. Mills

Five species of Caprellidea (Amphipoda) occur on a benthic transect between Gay Head, Massachusetts and Bermuda. Three species, Caprella rinki Stephensen, Mayerella limicola Huntsman, and Proaeginina norvegica (Stephensen) are refigured and redescribed. A new species of Thorina and a new genus and species are described from bathyal and abyssal depths. All five species are arctic–boreal in affinities and may be expected to range south only to Cape Hatteras on the continental slope, but much farther south at abyssal depths.


Zoosymposia ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 121-134
Author(s):  
JAMES A. BLAKE ◽  
PATRICIA A. RAMEY-BALCI

A new spionid polychaete was discovered in deep-sea sediments in the eastern Mediterranean Sea during an expedition by the Ocean Exploration Trust. Specimens were collected by the E/V Nautilus in August 2012 off Turkey, at a depth of 2216 m on the Anaximander Seamount at the Amsterdam mud volcano site. Cores were taken from sediments covered with microbial mats. The new species belongs to the Pygospiopsis-Atherospio Group, which has unusual neuropodial hooks, modified neurosetae in some anterior setigers, and branchiae in middle body segments that are broad, flattened, and fused to the dorsal lamellae. The new species is assigned to a new genus and species, Aciculaspio anaximanderi n. gen., n. sp., and is unusual in having a reduced setiger 1 lacking notosetae; well-developed pre- and postsetal lamellae that encompass the neurosetae and notosetae; notopodial lamellae free from the branchiae in anterior setigers that become fused and flattened in middle and posterior segments; unidentate hooded hooks in both noto- and neuropodia; neuropodial spines in setigers 4–10; and a pygidium with three anal cirri. Aciculaspio anaximanderi n. gen., n. sp. is the first species in the Atherospio-Pygospiopsis Group collected from a deep-water cold seep habitat.


Zootaxa ◽  
2009 ◽  
Vol 2121 (1) ◽  
pp. 64-68
Author(s):  
ZHAOHUI LUO ◽  
ZHAOZHI LU ◽  
WANZHI CAI

A new genus, Arcuatitibia Luo, Lu & Cai, and one new species, A. kerzhneri Luo, Lu & Cai, are described in the subfamily Reduviinae, based on the materials from Xinjiang, China. The dorsal habitus, male genitalia, and other diagnostic morphological features are illustrated.


2020 ◽  
Vol 84 (2) ◽  
Author(s):  
Luiz F. Andrade ◽  
André R. Senna

A new genus and species of the family Phoxocephalidae is here described with material collected during the Mini Biological Trawl Project at 224 and 500 m depth off Brazil’s southeastern coast in the states of Rio de Janeiro and São Paulo. Atlantiphoxus wajapi n. gen., n. sp. can be grouped in the subfamily Phoxocephalinae and seems to be morphologically close to Fuegiphoxus Barnard and Barnard, 1980 and Parharpinia Stebbing, 1899. However it can be easily distinguished within the phoxocephalids by the following characters: deep pereonites with small coxae; rostrum unconstricted; eyes absent; man­dible molar not triturative, but as a small hump with 3 multicuspidate stout setae; pereopods 3-4 with stout dactylus; pereopod 5 basis strongly tapering distally; pereopod 7 basis anterodistal corner with a row of long plumose setae; dactylus elongate. Epimeral plate 3 posteroventral margin strongly produced.


1987 ◽  
Vol 119 (4) ◽  
pp. 315-327 ◽  
Author(s):  
J.M. Campbell ◽  
D.S. Chandler

AbstractOmalorphanus new genus is described to include the new species O. aenigma from the Cascade Range of Oregon. The species is tentatively assigned to the subfamily Omaliinae, tribe Anthophagini; the characters on which this assignment is based and the morphological features that distinguish it from other Omaliinae are thoroughly discussed.


Zootaxa ◽  
2020 ◽  
Vol 4885 (2) ◽  
pp. 235-248
Author(s):  
SURNAA SURNAA ◽  
XIAOSHUAN BAI ◽  
ERNST HEISS ◽  
WANZHI CAI

A new apterous genus and species of flat bugs, Neolibiocoris obtusus gen. nov. and sp. nov., and an additional new species, Rotundocoris pyramidalis sp. nov. (Hemiptera: Heteroptera: Aradidae: Carventinae), are described from Hainan Island, China. The diagnostic morphological features of the new genus and species are discussed and illustrated. A revised key to apterous genera of Carventinae from Hainan Island is presented. 


2015 ◽  
Vol 84 (4) ◽  
pp. 259-269 ◽  
Author(s):  
Jowita Drohojowska ◽  
Evgeny E. Perkovsky ◽  
Jacek Szwedo

Abstract A new genus Rovnodicus gen. n., with new species Rovnodicus wojciechowskii sp. n. is described from Eocene Rovno amber, Ukraine. It is placed in the subfamily Aleurodicinae. It is the first whitefly from this fossil source. Its morphological features and taxonomic position with respect to other Aleurodicinae from the Eocene are briefly discussed. The article outlines the influences of this finding on discussions of the origin, age and taxonomic similarities between Baltic amber from Ukraine and that from the Gulf of Gdańsk and Bitterfeld as well as on palaeoecological reconstructions of the fossil site. The name ‘Aleurochiton eozaenicus Weigelt 1940’, mentioned as the fossil puparium of a whitefly from the Middle Eocene Geiseltal Fossillagerstätte appears to be nomen nudum.


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