Psolus rufus, a new species of sea cucumber (Holothuroidea: Psolidae) from northern Spain (Bay of Biscay)

2017 ◽  
Vol 98 (7) ◽  
pp. 1695-1702 ◽  
Author(s):  
Irene Fernández-Rodríguez ◽  
Andrés Arias ◽  
Yaisel J. Borrell ◽  
Nuria Anadón ◽  
Claude Massin ◽  
...  

A new species of holothurian of the genusPsolusOken, 1815 is described.Psolus rufussp. nov. was found in the central Cantabrian slope (Bay of Biscay) at 1500 m depth. The new species is characterized by having: ovoid body, reddish colourin vivo; dorsal area enclosed in a complete test composed of imbricating scales; 10 triangular plates of the same size surrounding mouth; 10 oral tentacles; no dorsal papillae; tube feet in two rows in the ventrolateral radii but one single row in the medial third or the body; ossicles are big dorsal plates and small plates in the sole, which are smooth, irregular and perforated. The molecular study of the COI gene supports the morphological results, groupingP. rufussp. nov. together with other members of the genus. However, the new species is genetically distinct from the two groups (Antarctic and Canadian) of the available sequencedPsolusspecies. Furthermore, a key to thePsolusspecies of the north-eastern Atlantic Ocean is provided.

Author(s):  
Eve C. Southward

The first species ofLamellisabella to be described from the Atlantic Ocean has rows of small teeth on the tentacles. It occurs at about 4000 m depth in the Bay of Biscay, and its range probably extends along the continental rise at least as far south as the Gulf of Guinea.


Author(s):  
Eve C. Southward

Collections of bottom-living animals from the continental slope of the northern Bay of Biscay contain a new species of Oligobrachia; this increases the number of species of Oligobrachia known from the North Atlantic to five. Oligobrachiids are quite frequently found incubating embryos and five individuals of the new species carry embryos. Oligobrachia embryos have been studied morphologically already (Ivanov, 1957, 1975; Southward & Southward, 1963; Brattegard, 1966; Ivanov & Gureeva, 1976) and should prove useful material for experimental studies in future. Incubation is also known in the family Siboglinidae, but neither embryos nor larvae have been seen in any other pogonophoran families. The Biscay collections also contain additional specimens of Oligobrachia ivanovi and these have been useful in revising the description of this rather rare species.


Author(s):  
Tomoyuki Komai ◽  
Suguru Nemoto ◽  
Shinji Tsuchida

A new species of the palaemonid shrimp genusPericlimenes, P. cannaphilus, is described from upper bathyal hydrothermal vents of the Bonin-Mariana Arc in the north-western Pacific at depths of 392–456 m. A symbiotic relationship between the new shrimp species and a siboglinid tube wormLamellibrachia satsumais suggested by their simultaenuous collection and further observationsin situ. Similarities in the morphology and symbiotic association suggest that the new species is closely related toP. thermohydrophilus, also associated withL. satsumain shallow hydrothermal vent fields in Kagoshima Bay, southern Japan, but differences in the rostral shape, the position of the epigastric tooth on the carapace, and the development of the hepatic tooth on the carapace morphologically differentiate the two species. Phylogenetic analysis based on sequences of the mitochondrial DNA COI gene supports the recognition of two clades corresponding to these two taxa.


2018 ◽  
Vol 41 (2) ◽  
pp. 225-249
Author(s):  
Axel Kallies ◽  
Teresa Farino

We here describe a new ghost moth (Hepialidae) species, Pharmaciscantabricussp. n. from the Picos de Europa National Park, Cantabria, in northern Spain. The new species belongs to a group of mostly day-flying species that are restricted to the European Alps and some mountain ranges of southern Europe. Based on morphology and analysis of mitochondrial COI gene sequences, the new species is closely related to Pharmacisaemilianus (Constantini, 1911), an endemic of the Italian Apennines. However, Pharmaciscantabricussp. n. can easily be distinguished from all related species based on both external and genitalic characters. We briefly review and illustrate all species of the genus Pharmacis Hübner, 1820 and discuss its relationship with the related genus Korscheltellus Börner, 1920. We reinstate Hepialuscastillanus Oberthür, 1883 as a distinct species and transfer it to Korscheltellus (stat. rev., comb. n.).


Phytotaxa ◽  
2020 ◽  
Vol 436 (3) ◽  
pp. 251-269
Author(s):  
ROBERTO GENNAIO ◽  
QUINTINO GIOVANNI MANNI

In the first months of 2013, a large group of plants of Centaurea belonging to the section Seridia, initially identified as a morphological variant of C. seridis subsp. sonchifolia, has been found during a naturalistic excursion in the Regional Natural Park of Punta Pizzo—Sant’Andrea Island. Morphological investigations, direct comparisons with species belonging to the same section, both through herbarium’s specimens and in vivo, and punctual bibliographical research indicate that this population belongs to a new species with some similarities with the Euro-Mediterranean C. seridis, C. polyacantha (a species with a distribution comprising the Iberian Peninsula and Morocco), or the North-African C. bimorpha and C. ferox, but is quite different by many characters illustrated in the present work. The new species here described is named C. akroteriensis Gennaio & Q.G. Manni.


Zootaxa ◽  
2011 ◽  
Vol 2798 (1) ◽  
pp. 31 ◽  
Author(s):  
SOLER-MEMBRIVES ANNA ◽  
MUNILLA TOMÁS

A new species of pycnogonid, Nymphon tricuspidatum, is described from a slope (574–610 m depth) on the NE Atlantic coast. Four males, two females, five juveniles and nine post-larvae were collected with suprabenthic and epibenthic sledges from Le Danois Bank (Bay of Biscay) and the Galician waters. This uniunguiculate and brevitarsal species is defined by the following exclusive features: a tricuspidated ocular tubercle, T-shaped frontal part of the cephalon, lateral implantation of the cheliphores, particular denticulation of the chela fingers, the 4 th palp article smaller than the 5 th , and the presence of 2 or 3 cement gland tubes. These characters distinguish the species from its most similar species Nymphon tubiferum, and the new species is compared to other similar species within the same genus, namely N. caementarum, N. prolatum, N, puellula and N. caldarium.


2012 ◽  
Vol 57 (3) ◽  
Author(s):  
Aldenice Pereira ◽  
Juan Timi ◽  
Ana Lanfranchi ◽  
José Luque

AbstractA new species of Colobomatus Hesse, 1873 is described from pores of the cephalic sensory system and nostrils of Argentine goatfish, Mullus argentinae Hubbs et Marini, 1933 (Perciformes: Mullidae), living along the southwestern Atlantic coast. The fish were collected at different latitudes, stretching from the State of Rio de Janeiro in the north, through Santa Catarina, Rio Grande do Sul (Brazil) to of Mar del Plata (Argentina) in the south. The prevalence of the infection ranged from 42% through 84%. The new species look alike to two other species, parasites of mullids (C. steenstrupi and C. mulli) particularly in the body shape and the number, shape, and ornamentation of cephalic, thoracic, and genital processes. The new species, however, can be readily distinguished by having the central cephalic process shorter than lateral ones, the later being bilobed at tip forked, and a relatively larger abdomen. Furthermore, C. steenstrupi possesses relatively wider trunk processes with rounded tips, a short abdominal dorsal process, and attains a larger size (up to 3.6 mm). C. mulli also differs by having all body processes with forked tips, and relatively shorter sixth thoracic somite and abdominal segments 1–3. This is the third record of a species of Colobomatus in South American Atlantic waters.


2019 ◽  
Vol 21 (3) ◽  
pp. 181-186 ◽  
Author(s):  
Ivan Löbl ◽  
Jaakko Mattila

A new species of the genus Euplectus Leach, 1817, E. lapponicus sp. n. Löbl & Mattila, is described from the North Boreal zone of Finland. The species is distinctive, and may be easily distinguished by the reduced number of elytral foveae, in combination with the size of the body, the punctation, and the genital characters.


Zootaxa ◽  
2007 ◽  
Vol 1501 (1) ◽  
pp. 45-56 ◽  
Author(s):  
ED A. HENDRYCKS

Deep-sea sampling off the central California coast has provided numerous material of a new amphipod species of the genus Valettiopsis Holmes, 1908. Valettiopsis concava sp. nov. is described from abyssal collections taken from baited traps and sponge stalk communities. Morphological characteristics which distinguish the new species from its congeners are found in the dorsal profile of the body, integument surface, and shape of coxa 2 and basis of pereopod 7. This contribution presents the second recorded species of the genus Valettiopsis described from the north Pacific, the first being the type species V. dentata Holmes, 1908. The new species is fully illustrated and compared with related species. The generic identity of Valettiopsis ruffoi Serejo & Wakabara, 2003 is discussed. A key to Valettiopsis species is provided.


Zootaxa ◽  
2010 ◽  
Vol 2557 (1) ◽  
pp. 19 ◽  
Author(s):  
PROSANTA CHAKRABARTY

A phylogeny of Milyeringidae is reported and a new species, Milyeringa brooksi, is described from Cape Range National Park in the North West Cape (Cape Range Peninsula) of Australia. This species is distinguished on the basis of morphological and molecular characters from its only congener Milyeringa veritas. These diagnostic characters are related to a unique pattern of sensory papillae on the body and synapomorphies in three genes (cytochrome c oxidase I, cytochrome b, and NADH dehydrogenase 2). The new species is known only from the southern portion of the North West Cape spanning roughly 50 kilometers of subterranean habitat. This habitat is exceedingly rare and measures to preserve it and its fauna should be taken.


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