scholarly journals A new tardigrade species of the genus Neostygarctus Grimaldi de Zio et al., 1982 (Tardigrada, Arthrotardigrada) from the Great Meteor Seamount, Northeast Atlantic

Author(s):  
Alexei V. Tchesunov

A new species of Neostygarctus Grimaldi de Zio et al., 1982 is described from the Great Meteor Seamount summit plateau in the Northeast Atlantic. Neostygarctus grossmeteori sp. nov. is characterized by the number and position of dorsomedian spines (five spines on the cephalic plate and each body plate and on the caudal plate, the spines decreasing in length backwards); the presence of eyes and of one or two pairs of ventral cervical spines; a transversal row of two to five short but strong spikes on the ventral side of the lateral body processes; only the internal claws of each leg provided with a normal accessory spine. The new species is related to N. acanthophorus Grimaldi de Zio et al., 1982 but differs by details of the dorsal body spines and the sculptures, the presence of ventral neck spines and ventral spikes on lateral body projections. Neostygarctus grossmeteori sp. nov. differs from two other known species of Neostygarctus, N. oceanopolis Kristensen et al., 2015 (Condor Seamont, NE Atlantic) and N. lovedeluxe Fujimoto & Miyazaki, 2013 (submarine cave NW Pacific), even more obviously by the number and position of dorsal body spines.

Zootaxa ◽  
2010 ◽  
Vol 2525 (1) ◽  
pp. 1 ◽  
Author(s):  
RUTH BARNICH ◽  
DIETER FIEGE

In the Northeast Atlantic several polynoid species have been confused in the past due to similarities in their elytral characters: Harmothoe globifera (G.O.Sars, 1873), Eunoe nodosa (M. Sars, 1861), Eunoe oerstedi Malmgren, 1866, Leucia nivea (M. Sars, 1863), and Acanthicolepis zibrowii n. sp., a new species from deep cold-water corals. The five species are redescribed and figured based on type and additional material. An identification key allowing also the identification of juveniles and anterior fragments and a synoptic table listing the major distinguishing characters of the species covered are provided.


Zootaxa ◽  
2011 ◽  
Vol 2930 (1) ◽  
pp. 1 ◽  
Author(s):  
NICOLE SCHNEIDER ◽  
TRUONG QUANG NGUYEN ◽  
ANDREAS SCHMITZ ◽  
PHOUTHONE KINGSADA ◽  
MARKUS AUER ◽  
...  

We describe a new species of the gekkonid genus Cyrtodactylus from northwestern Laos, based on a recent collection from Vientiane Province. Cyrtodactylus pageli sp. n. is distinguished from the remaining bent-toed-geckos by the combination of the following characters: snout-vent length up to 81.8 mm; 9–12 supralabials; 9 infralabials; 9–14 rows of dorsal tubercles; no distinct lateral body fold; 41–46 midbody ventrals; precloacal pores present in both sexes (males 4, females 5 or 6); no precloacal groove; femoral scales not distinctly enlarged; no femoral pores; subdigital lamellae under the fourth toe 19–26; subcaudals transversally enlarged; dark nuchal band, followed by a transversal row of dark neck blotches (rarely forming an additional transversal neck band) in-between nuchal band and first body band; 5 in part irregular dark dorsal bands between limb insertions plus transversal band between hind limbs; tail with banded pattern.


1997 ◽  
Vol 66 (4) ◽  
pp. 235-246 ◽  
Author(s):  
Fábio Lang da Silveira ◽  
André Carrara Morandini

Nausithoe aurea, a new species of scyphozoan Coronatae, is described from São Paulo State, Brazil. The solitary scyphistomae, with some zooxanthellae, strobilated producing planuloids and medusae; this represents an intermediate life cycle between that of metagenetic Nausithoidae and the submarine cave-dwelling, reduced medusa stage of Nausithoe planulophora (Werner, 1971). The periderm tube of the scyphistomae has 16 internal cusps in all whorls. The medusae present yellow pigment spots in most of their lappets. The early embryonic development is briefly described. Planuloid formation is hypothesized as explanation for polyp-stage philopatry.


Zootaxa ◽  
2011 ◽  
Vol 3138 (1) ◽  
pp. 51 ◽  
Author(s):  
TINA N. MOLODTSOVA

Leiopathes montana, a new species previously reported as L. glaberrima (Esper), is described from the plateau of the Great Meteor seamount (North Atlantic) at depth 300–335 m. The new species can be easily distinguished from all other species of the genus by very thin at tips, slightly bended terminal branchlets 0.15–0.2 mm in diameter above the base, rather long in comparison to the size of the colony, small compressed triangular spines 0.02–0.03 mm long and 0.22–0.5 mm apart, and small densely-set polyps (6–9 per centimeter). Eight species assigned to the genus Leiopathes represent two distinct groups: (1) sparsely branched forms with longer terminal branchlets (L. glaberrima, L. valdiviae, L. acanthophora, L. bullosa, L. montana), and (2) forms with sinusoidal stem and branches, and very short branchlets forming flabellate fronds (L. expansa, L. grimaldii, L. secunda). The largest in size syntype of L. grimaldii Roule, 1902 collected off the Azores is proposed here as the lectotype, since it is the only full grown and complete specimen and also the only specimen illustrated and described in detail by Roule.


Zootaxa ◽  
2020 ◽  
Vol 4810 (1) ◽  
pp. 65-80
Author(s):  
L.J. MENDIS WICKRAMASINGHE ◽  
DULAN RANGA VIDANAPATHIRANA ◽  
NETHU WICKRAMASINGHE ◽  
DAVID J. GOWER

A new species of uropeltid snake is described from the Knuckles Conservation Forest, Matale District, Sri Lanka. Rhinophis gunasekarai sp. nov. is superficially most similar to Rhinophis phillipsi in having yellow lines on the dorsum, blotches on the lateral body, and a relatively small tail shield, but it differs from that species in having substantially fewer ventrals, and a unique number and disposition of the dorsal yellow lines and lateral blotches. The new description brings the uropeltid fauna of Sri Lanka to 17 currently recognized species, all Rhinophis. 


ZooKeys ◽  
2017 ◽  
Vol 716 ◽  
pp. 1-17 ◽  
Author(s):  
Nicolas Lavesque ◽  
Guillemine Daffe ◽  
Paulo Bonifácio ◽  
Pat Hutchings

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