Comments on “A new deep-water Astyris species (Buccinoidea: Columbellidae) from the southeastern Pacific” by Araya et al. 2016

Zootaxa ◽  
2017 ◽  
Vol 4247 (1) ◽  
pp. 55 ◽  
Author(s):  
JAVIER SELLANES
Keyword(s):  
New Species ◽  
Deep Water ◽  
Northern Chile ◽  
Future Analysis ◽  
Southeastern Pacific ◽  
Ecological Aspects ◽  
Future Work

The aim of this note is to clarify some aspects posed by Araya et al. (2016) in the description of the columbellid gastropod Astyris atacamensis for northern Chile, and also to complement it for providing further insight on important ecological aspects of the genus Astyris in the SE Pacific. Araya et al. (2016) fill an important gap, describing a species that in my opinion is important in many aspects, yet, they fail in connecting this new species with previous work in which this taxon has been mentioned. Araya et al. (2016) indicate that the genus has not been previously reported for the SE Pacific; however, Levin et al. (2002a) already mention finding Astyris permodesta (Dall, 1890) off Callao, Perú (~12°S). Astyris permodesta, originally described for the coast of California, is currently accepted under the genus Alia (Monsecour 2015). Although we still cannot confirm, most probably future analysis will prove that A. permodesta reported for Perú by Levin et al. (2002a) corresponds indeed to the new species Astyris atacamensis. Future work should elucidate the definitive placement of this species in either Alia or Astyris, but hereafter I will indistinctly use Astyris.  

scholarly journals Shallow water heterobranch sea slugs (Gastropoda: Heterobranchia) from the Región de Atacama, northern Chile

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1963 ◽  
Author(s):  
Juan Francisco Araya ◽  
Ángel Valdés
Keyword(s):  
New Species ◽  
South America ◽  
Shallow Water ◽  
South Atlantic ◽  
Northern Chile ◽  
Undescribed Species ◽  
Invertebrate Fauna ◽  
Southeastern Pacific ◽  
Sea Slugs

The coast of northern Chile has been sparsely studied in regards to its invertebrate fauna, with just a few works reviewing the distribution of local mollusks. This work presents a survey of the shallow water heterobranch sea slugs currently occurring around the port of Caldera (27 °S), in the Región de Atacama, northern Chile. Eight species of sea slugs were found in this study:Aplysiopsiscf.brattstroemi(Marcus, 1959),Baptodoris peruviana(d’Orbigny, 1837),Diaulula variolata(d’Orbigny, 1837),Doris fontainiid’Orbigny, 1837,Onchidella marginata(Couthouy in Gould, 1852),Phidiana lottini(Lesson, 1831),Tyrinna delicata(Abraham, 1877) and the new speciesBerthella schroedlisp. nov., described herein. All of the species found in the area are endemic to South America, having distributions in the southeastern Pacific and South Atlantic Oceans, from Ancash, Perú to Peninsula Valdés, Argentina, and two of them represent species which are endemic to the Chilean coasts (Aplysiopsiscf.brattstroemiandBerthella schroedli). The finding of a previously undescribed species emphasizes the need of further surveys, particularly in subtidal and deeper waters, in order to improve the knowledge on this neglected fauna in Atacama.

scholarly journals Latest Permian deep-water ostracods from southwestern Guangxi, South China

2007 ◽  
Vol 26 (2) ◽  
pp. 169-191 ◽  
Author(s):  
Aihua Yuan ◽  
Sylvie Crasquin-Soleau ◽  
Qinglai Feng ◽  
Songzhu Gu
Keyword(s):  
New Species ◽  
South China ◽  
Deep Water ◽  
World Wide ◽  
Pelagic Species ◽  
Two New Species ◽  
First World

Abstract. A very diverse ostracod fauna was discovered in the latest Permian strata of the Dongpan section, southwestern Guangxi, South China. Fifty-one species belonging to twenty-eight genera were identified and described, including two new species (Bairdia dongpanensis n. sp. and Spinomicrocheilinella anterocompressa n. sp). This type of assemblage, with nineteen palaeopsychrospheric species and four pelagic species, is the first world-wide deep-water ostracod fauna reported from the latest Permian strata and the first one recorded in the Permian of China. The palaeoenvironmental analysis allows one to propose an evaluation of the bathymetry variation along the Dongpan section.

Bougainvillia aberrans (Cnidaria, Hydrozoa), a new species of hydroid and medusa from the upper bathyal zone off Bermuda

1993 ◽  
Vol 71 (5) ◽  
pp. 997-1002 ◽  
Author(s):  
Dale R. Calder
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
Deep Water ◽  
North Atlantic Ocean ◽  
Deep Water Species ◽  
A New Species ◽  
Water Species

Bougainvillia aberrans n.sp. is described from Bermuda in the western North Atlantic Ocean. Specimens were collected at a depth of 150 fathoms (274 m) from the polypropylene buoy line of a crab trap. The hydroid colony of B. aberrans is erect, with a polysiphonic hydrocaulus, a smooth to somewhat wrinkled perisarc, hydranths having a maximum of about 16 tentacles, and medusa buds arising only from hydranth pedicels. Medusae liberated in the laboratory from these hydroids differ from all other known species of the genus in having a long, spindle-shaped manubrium, lacking oral tentacles, having marginal tentacles reduced to mere stubs, and being very short-lived (surviving for a few hours at most). Gonads develop in medusa buds while they are still attached to the hydroids, and gametes are shed either prior to liberation of the medusae or shortly thereafter. The eggs are surrounded by an envelope bearing nematocysts (heterotrichous microbasic euryteles). The cnidome of both hydroid and medusa stages consists of desmonemes and heterotrichous microbasic euryteles. The diagnosis of the genus Bougainvillia is modified to accommodate this new deep-water species.

scholarly journals A new species of Neotanais Beddard (Crustacea: Tanaidacea) from the Subantartctic, off the Falkland Islands

Zootaxa ◽  
2003 ◽  
Vol 339 (1) ◽  
pp. 1 ◽  
Author(s):  
KIM LARSEN ◽  
MAGDALENA BLAZEWICZ-PASZKWYCZ
Keyword(s):  
New Species ◽  
Deep Water ◽  
Falkland Islands ◽  
Dorsal Margin ◽  
Male And Female ◽  
Recent Activity ◽  
A New Species

The male and female of Neotanais krappschickelae n.sp., from the Subantarctic off the Falkland Islands are described from the RV Eltanin deep-water cruises of 1962. Both male and female of the new species can be separated from other species by the combination of characters including: a densely setose dorsal margin of the cheliped carpus, dactylus and fixed finger of subequal length; cheliped sclerite, all pereopodal bases, and posterior-lateral edges of pereonites with numerous plumose setae. The recent activity within tanaidacean taxonomy including neotanaid taxonomy has made it necessary to re-diagnose Neotanais.

A new species of the genus Rapturella (Gastropoda: Acteonidae) from southeast Brazil

Zootaxa ◽  
2018 ◽  
Vol 4521 (1) ◽  
pp. 125 ◽  
Author(s):  
CARLO M. CUNHA ◽  
LUIZ RICARDO L. SIMONE
Keyword(s):  
New Species ◽  
Continental Shelf ◽  
Deep Water ◽  
Shell Morphology ◽  
Southwest Pacific ◽  
Southeast Brazil ◽  
Pacific Waters ◽  
A New Species ◽  
High Diversity

Acteonidae d'Orbigny, 1843 is the largest family within the superfamily Acteonoidea (Bouchet et al. 2017) and includes small gastropods typical of infralittoral environments. Most acteonids living on the continental shelf or in deep water have been described on the basis of shell morphology alone (Simone 2006; Valdés 2008; Cunha 2011; Salvador & Cunha 2016), because little material with soft parts has been collected and examined. Consequently, little is known about the ecology of the species.  Recently, many new species of the genus Acteon Montfort, 1810 have been described from tropical Southwest Pacific waters (Valdés 2008), suggesting that a high diversity of acteonid species may await discovery in other deep water environments, including those of Brazil. 

scholarly journals A new terrestrial snail species (Gastropoda: Bulimulidae) from the Región de Antofagasta, northern Chile

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3538
Author(s):  
Juan Francisco Araya ◽  
Abraham S.H. Breure
Keyword(s):  
New Species ◽  
Coastal Area ◽  
First Record ◽  
Coastal Areas ◽  
Snail Species ◽  
South American ◽  
Northern Chile ◽  
Terrestrial Snails ◽  
A New Species ◽  
Coastal Range

A new species of Scutalus Albers, 1850 (Gastropoda: Bulimulidae), Scutalus chango sp. n., is described from a coastal area of northern Chile. Empty shells of this new species were found buried in sand and under boulders and rocks in the foothills of the Chilean Coastal Range at Paposo, Región de Antofagasta. This new species is distinguished from all other Chilean terrestrial snails by its slender shell with a flared and reflected aperture, and by the presence of a columellar fold. This is the first record of Scutalus in Chile, and the southernmost record for this endemic South American bulimulid genus. The presence of this species in Paposo highlights the need for further research and for conservation guidelines in coastal areas of northern Chile, which have comparatively high levels of biodiversity and endemism.

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