|
|
|
|
|
| Cepeda, Diego; Pardos, Fernando; Sánchez, Nuria. |
| A new species of Dracoderes, D. spyro sp. nov., is described from Hispaniola Island (Caribbean Sea), and represents the first record of this genus in American waters. The new species is distinguished from its congeners by the presence of lateroventral spines on segments 3–4 and 6–9, lateral accessory spines on segment 5, lateroventral tubes on segments 2, 5 and 10, and laterodorsal tubes on segment 8. Additionally, a dichotomous key to the species level for the genus Dracoderes is included. |
| Tipo: Text |
Palavras-chave: Kinorhynchs; Taxonomy; Morphology; Caribbean Sea; Dominican; Republic; Haiti. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00501/61244/64822.pdf |
| |
|
|
| Sánchez, Nuria; Pardos, Fernando; Arbizu, Pedro Martínez. |
| Kinorhynch specimens were studied from abyssal sediment samples collected during seven cruises at the Clarion-Clipperton Fracture Zone (Eastern Central Pacific), a vast area that will be mined for polymetallic nodules in a near future. This study is the first in a series focused on kinorhynchs mainly collected at the German zone following requirements of the International Seabed Authority (ISA), who demands identification of fauna associated with nodules previous to the concession of the exploitation license. A total of 18 species were found, of which three new Echinoderidae species are described herein. Cephalorhyncha polunga sp. nov. is easily discriminated from its congeners by the presence of pointed and prominent tergal extensions together with... |
| Tipo: Text |
Palavras-chave: Cephalorhyncha; Cyclorhagida; Echinoderidae; Echinoderes; Meiofauna; Meristoderes; Taxonomy. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00502/61330/64902.pdf |
| |
|
|
| Cepeda, Diego; Trigo, Dolores; Pardos, Fernando; Sánchez, Nuria. |
| Ecomorphology studies the relationship between organisms’ morphology and environment features. To better understand whether the shape of the body and the appendages involved in the movement is correlated to sediment composition in meiofaunal organisms, we study the evolved morphological adaptations to environment in selected taxa of the phylum Kinorhyncha: the allomalorhagid families Dracoderidae and Pycnophyidae, and the cyclorhagid genus Echinoderes. The selected taxa include the most diverse groups of Kinorhyncha worldwide, representing the 75.5% of the total phylum diversity. Widened, plump bodies and lateral terminal spines may be adaptive for species living in coarse, more heterogeneous sediments, as they could maintain a more powerful musculature to... |
| Tipo: Text |
|
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/75990/76891.pdf |
| |
|
|
| Cepeda, Diego; Pardos, Fernando; Zeppilli, Daniela; Sánchez, Nuria. |
| Cold seep areas are extremely reduced habitats with spatiotemporal variation of hydrocarbon-rich fluid seepage, low oxygen levels, and great habitat heterogeneity. Cold seeps can create circular to ellipsoid shallow depressions on the seafloor called pockmarks. We investigated two selected pockmarks, characterized by different gas emission, and two sites outside these geological structures at the Mozambique Channel to understand whether and how their environmental conditions affect the kinorhynch fauna in terms of density, richness, and community composition. A total of 11 species have been found living in the studied area, of which three are new species: Fissuroderes cthulhu sp. nov., Fujuriphyes dagon sp. nov., and Fujuriphyes hydra sp. nov. Densities... |
| Tipo: Text |
Palavras-chave: Cold seeps; Deep sea; Ecology; Kinorhynchs; Meiofauna; Diversity; Taxonomy. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/75992/76894.pdf |
| |
|
|
| Cepeda, Diego; Sanchez, Nuria; Pardos, Fernando. |
| A new species of Kinorhyncha, Triodontoderes lagahoo sp. nov., is described from Tobago Island, Caribbean Sea (western Atlantic Ocean) from a coastal, sandy habitat using both light and scanning electron microscopy. The species is characterized by the presence of middorsal acicular spines on segments 1–11 (that on segment 10 crenulated in males), laterodorsal crenulated spines on segment 10 only in males, lateroventral acicular spines on segments 3–4 and 6–8 (lateroventral spines also on segment 10 in females), lateroventral cuspidate spines on segments 5 and 9, lateral accessory acicular spines on segments 5 and 9, lateral accessory cuspidate spines on segment 8, ventrolateral acicular spines on segment 2 and ventrolateral cuspidate spines on segment 2.... |
| Tipo: Text |
Palavras-chave: Kinorhynchs; Biodiversity; Meiofauna; Morphology; Taxonomy; Triodontoderes lagahoo sp. nov.. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00502/61325/64897.pdf |
| |
|
|
| Cepeda, Diego; Álvarez-castillo, Lucia; Hermoso-salazar, Margarita; Sanchez, Nuria; Gomez, Samuel; Pardos, Fernando. |
| Several meiofaunal samples from the central and lower Gulf of California were studied. Four new species of kinorhynchs, Cristaphyes fortis sp. nov., Higginsium mazatlanensis sp. nov., Cephalorhyncha teresae sp. nov. and Echinoderes xalkutaat sp. nov., are described herein. Cristaphyes fortis sp. nov. may be distinguished from its most similar congeners by its more strongly developed pachycycli and ball-and-socket joints and the presence of unpaired paradorsal setae on segments 2, 4 and 6, two pairs of ventrolateral setae on segment 5, one pair of ventrolateral setae on segments 2–4, 6–7 and 10, and one pair of ventromedial setae on segments 8–9. Higginsium mazatlanensis sp. nov. is easily distinguished from its congeners by the combined presence of... |
| Tipo: Text |
Palavras-chave: Kinorhynchs; Meiofauna; Biodiversity; Taxonomy; Pycnophyidae; Echinoderidae. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00501/61246/64824.pdf |
| |
|
|
| Cepeda, Diego; Pardos, Fernando; Sánchez, Nuria. |
| Two new kinorhynch species from Puerto Rico (Greater Antilles) and Barbados (Lesser Antilles) are described herein from Dr R. P. Higgins unexamined Caribbean meiofaunal samples, which have been stored in the Smithsonian Institution collections. The species from Puerto Rico, Cristaphyes cornifrons sp. nov., belongs to the class Allomalorhagida, whereas the species from Barbados, Echinoderes barbadensis sp. nov., belongs to the class Cyclorhagida. Cristaphyes cornifrons sp. nov. is easily distinguished from most of its congeners by the presence of lateral terminal spines and the absence of male, sexually dimorphic, ventromedial tubes on segment 2, as only other two species of the genus lack these features. Of these, C. cornifrons sp. nov. may be easily... |
| Tipo: Text |
Palavras-chave: Kinorhynchs; Biodiversity; Meiofauna; Morphology; Taxonomy. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00501/61249/64829.pdf |
| |
|
|
| Cepeda, Diego; González-casarrubios, Alberto; Sánchez, Nuria; Pardos, Fernando. |
| Meiofauna sampling in the proximity of Syd-Hällsö Island (Strömstad, Sweden) revealed a new species of Kinorhyncha from the Skagerrak. The species, Setaphyes elenae sp. nov., is distinguished from its congeners by the arrangement of the middorsal cuticular specializations (it has shortened, distally rounded middorsal processes on segments 1 and 9 and middorsal elevations throughout segments 2–8), as well as by the presence of paired laterodorsal setae on segments 3, 5, 7 and 9 and ventromedial setae on segments 3, 5 and 7 in both males and females. The finding of a new species from the northeastern Atlantic Ocean, provides new valuable information for the recently established genus in the Allomalorhagida. |
| Tipo: Text |
Palavras-chave: Meiofauna; Taxonomy; Scalidophora; Biodiversity; Invertebrates.. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00627/73912/73248.pdf |
| |
|
|
|
