scholarly journals Description of a New Species of <i>Sphincteristomum</i> from Sparid Fishies of the Algerian Coast (Western Mediterranean)

2013 ◽  
Vol 04 (10) ◽  
pp. 1129-1136
Author(s):  
Sihem Abid-Kachour ◽  
Salim Mouffok ◽  
Zitouni Boutiba
ZooKeys ◽  
2019 ◽  
Vol 838 ◽  
pp. 71-84
Author(s):  
Céline Labrune ◽  
Nicolas Lavesque ◽  
Paulo Bonifácio ◽  
Pat Hutchings

A new species of Terebellidae, Pistacolinisp. n., has been identified from the harbour of Banyuls-sur-Mer, north-western Mediterranean Sea. This new species was found in very high densities, exclusively in gravelly sand deposited manually, and was not found in the original source habitat of the gravel. This species is characterized by the colour of the ventral shields with pinkish anterior part and a blood red posterior part in live specimens, a pair of unequal-sized plumose branchiae inserted on segment II and anterior thoracic neuropodia with long-handled uncini. The presence of long-handled uncini even in the smallest specimens constitutes the major difference between Pistacolinisp. n. and other Pista species with a single pair of branchiae such as P.lornensis and P.bansei.


2011 ◽  
Vol 92 (5) ◽  
pp. 1043-1055 ◽  
Author(s):  
Katerina Sevastou ◽  
Paulo Henrique Costa Corgosinho ◽  
Pedro Martínez Arbizu

A new species of the genus Dahmsopottekina is described from the Mediterranean Sea. Dahmsopottekina guilvardi sp. nov. was collected from abyssal habitats at a depth range of 2340–2850 m. Like its congeners, the new species has a vermiform habitus, a highly transformed P1 in both sexes and a plough-like rostrum in the female. Dahmsopottekina guilvardi sp. nov. can be distinguished from its congeneric species by the combination of a fused basis and endopodite in P1 of both sexes and the absence of an endopodite in P2–P4 of the female. Dahmsopottekina guilvardi sp. nov. is the second record of a harpacticoid species after its congener D. peruana in which the basis and endopodite of a leg other than the P5, namely the P1, are fused. Furthermore, the new species is the only one among Dahmsopottekina species with a 1-segmented P1 exopodite in the male. Similar to its congeners, D. guilvardi sp. nov. is strongly sexually dimorphic. This is evident through the morphology of most of the cephalic appendages and the reduction of P2–P6 in the female. The results of the present study support the observation that Dahmsopottekina species are sparsely distributed and highly endemic. Nevertheless, our results do not agree with the statement of considerably larger females as the length variability between females is greater than between the two sexes. Despite the morphological characters of the species commensurate with a burrowing mode of life, its presence in sediment traps suggests that D. guilvardi sp. nov. is an active ‘swimmer’.


Zootaxa ◽  
2019 ◽  
Vol 4679 (2) ◽  
pp. 297-317 ◽  
Author(s):  
ALBERTO SENDRA ◽  
GIUSEPPE NICOLOSI ◽  
ELENA AMORE

A description is given of a biogeographically interesting new species of Campodeidae (Diplura), Plusiocampa (Plusiocampa) tinoamorei sp. nov., a troglobiotic species found in the Sicilian Villasmundo and Scrivilleri caves. A second subterranean species already known from three caves in northwest Sicily near Palermo, Campodea (Campodea) majorica sicula Condé, 1957, also was studied. Both species were characterized with SEM. Each species belongs to a different monophyletic group: Plusiocampa s. str., with thoracic medial posterior macrosetae, and the group related to Campodea (Campodea) grassi Silvestri, 1912. Both groups are widely distributed on almost all of the large western Mediterranean islands. Nevertheless, although these two monophyletic groups have a different origin both could be dispersed via land connections between the mainland and the islands during the Messinian Age. This new discovery shows the great value of Sicilian caves that hold species with unique features and of high biogeographic significance. 


Zootaxa ◽  
2010 ◽  
Vol 2536 (1) ◽  
pp. 36 ◽  
Author(s):  
JAVIER SOUTO ◽  
OSCAR REVERTER-GIL ◽  
EUGENIO FERNÁNDEZ-PULPEIRO

Samples of Bryozoa were collected during an epibenthic sledge survey (Canal0209) of the Menorca Channel between Menorca and Mallorca in the Balearic Islands in 2009. Twenty-nine species were identified, including a new genus of Calloporidae (Barrosia) and a new species of Fenestrulina, described herein. A lectotype is designated for Coronellina fagei (Calescharidae). Cribellopora simplex, a species of Lacernidae generally considered to be a junior synonym of Cribellopora trichotoma, is redescribed on the basis of the holotype and newly collected material.


Zootaxa ◽  
2016 ◽  
Vol 4208 (4) ◽  
pp. 349 ◽  
Author(s):  
PAOLO MELIS ◽  
ANA RIESGO ◽  
SERGIO TABOADA ◽  
RENATA MANCONI

We used both morphological and genetic approaches to investigate and to describe a new Mediterranean sponge species of the genus Protosuberites from the estuarine-anchialine Bue Marino Cave of Sardinia (Tyrrhenian Sea). The morphotraits of the specimens were compared versus congeneric species with the strongest affinities, covering the genus geographic range worldwide. Protosuberites mereui sp. nov. is light yellow, thinly encrusting, devoid of any special ectosomal skeleton, with spicular complement of tylostyles of three size classes, single or arranged in bundles/tufts, with round to suboval heads. The new species is characterized by an exclusive diagnostic trait recorded for any cave-dwelling Protosuberites i.e. suboval and basally plated resting bodies with a foraminal aperture ornate by a collar. Resting bodies were found in the basal spongin plate firmly adhering to the substratum singly or in small groups. Also the rare, small tylostyles with a sinuous shaft and a typical mushroom-like head were never recorded in the Western Mediterranean and Atlantic species of the genus. The phylogenetic reconstruction using maximum likelihood (ML) and Bayesian Inference (BI) analyses (COI, 18S rRNA, and 28S rRNA) recovered a robustly supported sister relationship between the Mediterranean P. mereui sp. nov. and Protosuberites sp. ‘Panama’ from the Eastern Pacific Ocean. The genetic distances based on COI sequences between all compared Protosuberites species were always higher than 2%, a value sufficient to confirm that P. mereui sp. nov. is a distinct species within the genus. Morphological and genetic analyses confirm unanimously P. mereui sp. nov. as a new species. Our results contribute to the assessment of biodiversity in anchialine/estuarine caves and increase data on sponge adaptive strategies in these extreme ecosystems. 


1995 ◽  
Vol 27 (4) ◽  
pp. 255-259 ◽  
Author(s):  
A. Tehler ◽  
G. B. Feige ◽  
H. T. Lumbsch

AbstractDirina mexicana Tehler from the western coasts of Mexico is proposed as a new species. It mostly resembles D. immersa and D. insulana from the western mediterranean region in Europe.


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