scholarly journals Checklist of Recent Cylindriscala (Caenogastropoda: Epitoniidae) of the world

Check List ◽  
2012 ◽  
Vol 8 (4) ◽  
pp. 740
Author(s):  
Silvio Felipe Barbosa Lima ◽  
Martin Lindsey Christoffersen
Keyword(s):  
Deep Water ◽  
Bathymetric Distribution ◽  
The World ◽  
Generic Position

A checklist of deep water gastropods belonging to the genus Cylindriscala is presented based mainly on data from the literature. We list a total of 21 species and include information on the geographic and bathymetric distribution of each taxon. The generic position of eight species previously included in this genus is questioned and requires a review.

Endemic Lake Baikal sponges from deep water. 2: Taxonomy and Bathymetric Distribution

Zootaxa ◽  
2017 ◽  
Vol 4236 (2) ◽  
pp. 335 ◽  
Author(s):  
VALERIA B. ITSKOVICH ◽  
OXANA V. KALUZHNAYA ◽  
ELENA VEYNBERG ◽  
DIRK ERPENBECK
Keyword(s):  
New Species ◽  
Lake Baikal ◽  
Deep Water ◽  
Great Depth ◽  
Limiting Factor ◽  
Bathymetric Distribution ◽  
Morphological Studies ◽  
Lubomirskia Baicalensis ◽  
The Family ◽  
Baikalospongia Intermedia

Unique samples of deep-water sponges of Lake Baikal were collected between 120 and 1450 m depth and their taxonomy and bathymetric distribution were studied. Based on morphological studies with scanning electron microscopy (SEM) and molecular analyses (CO1, ITS) we describe a new species, Baikalospongia abyssalis sp. nov. Spicule morphology of this new species is similar to Palaeoephydatia sp., a species previously known only from fossils in Late Pliocene (3.2−2.8 mya) sediments. Other sponge samples collected were identified as Baikalospongia intermedia intermedia, B. intermedia profundalis, B. bacillifera, B. fungiformis, B. martinsoni and Swartschewskia papyracea, all from the family Lubomirskiidae. Sponge specimens with giant spicules, identified as B. fungiformis, were found at great depths. B.i. intermedia and B. i. profundalis are dominating species at great depth. Light is a limiting factor for distribution of Lubomirskia baicalensis, possibly due to its symbiosis with photosynthetic protists. The current study extends our knowledge on the distribution boundaries of Lubomirskiidae at great depths. 

First report of rare pomfrets (Teleostei: Bramidae) from Brazilian waters, with a key to Western Atlantic species

Zootaxa ◽  
2009 ◽  
Vol 2290 (1) ◽  
pp. 1-26 ◽  
Author(s):  
ALFREDO CARVALHO-FILHO ◽  
GUY MARCOVALDI ◽  
CLÁUDIO L. S. SAMPAIO ◽  
M. ISABEL G. PAIVA ◽  
LUIZ A. G. DUARTE
Keyword(s):  
Deep Water ◽  
New Records ◽  
Morphological Characters ◽  
Biological Data ◽  
Museum Collections ◽  
Southwestern Atlantic ◽  
Western Atlantic ◽  
Deep Waters ◽  
The World ◽  
First Time

This is the first in a series of reports describing new records caught with circle hooks, a method only now being employed in exploratory fishing in Brazilian deep waters. Several new records of deep-water fishes were obtained with this equipment. In this paper we record for the first time the occurrence of two genera and species of Bramidae in Brazilian waters: the tropical pomfret Eumegistus brevorti and the keeltail pomfret Taractes rubescens. We also report on previously unnoticed collection records from preserved specimens of Pterycombus brama in museum collections, and the first capture of an adult bigscale pomfret Taractichthys longipinnis in Brazil. These new records increase the number of bramid species known from Brazilian waters to ten. The addition of P. brama to the Brazilian Bramidae makes the Southwestern Atlantic the only known area of the world where two species of Pterycombus are found together. Meristic, biometric, and new biological data are presented for Eumegistus brevorti. Some species of bramids are rather rare and even if well described in the literature there are morphological characters and behavioral aspects yet to be added. Herein we present detailed descriptions of some bramid species to add to their published descriptions. A key to the Western Atlantic Bramidae is provided.

Revision of the family Chasmocarcinidae Serène, 1964 (Crustacea, Brachyura, Goneplacoidea)

Zootaxa ◽  
2016 ◽  
Vol 4209 (1) ◽  
pp. 1 ◽  
Author(s):  
PETER K. L. NG ◽  
PETER CASTRO
Keyword(s):  
Shallow Water ◽  
Deep Water ◽  
Nominal Species ◽  
Pacific Region ◽  
Tropical Eastern Pacific ◽  
Western Atlantic ◽  
Freshwater Streams ◽  
The Family ◽  
The World ◽  
Freshwater Habitats

The family Chasmocarcinidae Serène, 1964, is revised based on the examination of the type material of many of its species as well as unidentified and previously identified material from around the world. The revised family now consists of three subfamilies comprising 16 genera (including eight described as new) and 51 species (including 19 described as new). The subfamily Chasmocarciinae Serène, 1964, consists of Amboplax n. gen. with one species; Angustopelta n. gen. with four species, two of which are new; Camatopsis Alcock & Anderson, 1899, with six species, five of which are new; Chasmocarcinops Alcock, 1900, with one species; Chasmocarcinus Rathbun, 1898, with 11 species, one of which is new; Chinommatia n. gen. with five species, two of which are new; Deltopelta n. gen. with one species; Hephthopelta Alcock, 1899, with two species, one of which is new; Microtopsis Komai, Ng & Yamada, 2012, with two species, one of which is new; Notopelta n. gen. with one species; Statommatia n. gen. with five species, two of which are new; and Tenagopelta n. gen. with three species, two of which are new. The subfamily Megaesthesiinae Števčić, 2005, consists of Alainthesius n. gen. with two species, both of which are new; Megaesthesius Rathbun, 1909, with four species, one of which is new. The subfamily Trogloplacinae Guinot, 1986, consists of Australocarcinus Davie, 1988, with three species, and Trogloplax Guinot, 1986, with one species. A neotype is selected for Chasmocarcinus cylindricus Rathbun, 1901. Three nominal species were found to be junior subjective synonyms of other species: Chasmocarcinus panamensis Serène, 1964, of C. longipes Garth, 1940; Chasmocarcinus rathbuni Bouvier, 1917, of C. typicus Rathbun, 1898; and Hephthopelta superba Boone, 1927, of Deltopelta obliqua (Rathbun, 1898). Thirteen chasmocarcinid genera are exclusively found in the Indo-West Pacific region, one (Chasmocarcinus) in both the Western Atlantic and Tropical Eastern Pacific regions, and two (Deltopelta n. gen. and Amboplax n. gen.) exclusively in the Western Atlantic. Chasmocarcinids are remarkable for occurring from depths exceeding 1000 m to shallow water and completely freshwater habitats: chasmocarcinines and megaesthesiines are found from shallow to deep water marine ecosystems, whereas trogloplacines live in freshwater streams, including cave systems. 

Bathymetric distribution and diversity of deep water polychaetous annelids in the Sigsbee Basin, northwestern Gulf of Mexico

Hydrobiologia ◽  
2003 ◽  
Vol 496 (1-3) ◽  
pp. 361-370 ◽  
Author(s):  
Alma Yazmín Pérez-Mendoza ◽  
Pablo Hernández-Alcántara ◽  
Vivianne Solís-Weiss
Keyword(s):  
Gulf Of Mexico ◽  
Deep Water ◽  
Bathymetric Distribution

A new species of Characella Sollas, 1886 (Tetractinellida; Demospongiae; Porifera) from deeper waters off the coast of Brazil

Zootaxa ◽  
2019 ◽  
Vol 4559 (1) ◽  
pp. 196
Author(s):  
ALAN DIAS ◽  
GEORGE GARCIA SANTOS ◽  
ULISSES PINHEIRO
Keyword(s):  
New Species ◽  
Deep Water ◽  
Rio Grande ◽  
Northeastern Brazil ◽  
Brazilian Coast ◽  
The Family ◽  
The World ◽  
A New Species

Sponges of the Family Pachastrellidae Carter, 1875 are distributed worldwide and found generally in deep water. Up to date, only four species are known for the Brazilian coast (Muricy 2018): Characella aspera Sollas, 1886, C. capitolii Mothes et al. 2007, C. pachastrelloides (Carter, 1876), and Pachastrella monilifera Schmidt, 1868. In this study, a new species of Characella is described from the mesophotic zone off Bacia Potiguar (Rio Grande do Norte State, Northeastern Brazil). The specimen was preserved in 80% ethanol and deposited in the Porifera Collection of the Universidade Federal de Pernambuco (UFPEPOR). Taxonomic comparisons were made with data tabulated for all species of Characella available in the World Porifera Database (van Soest et al. 2018). 

Into the Lake—Shallow

Sacred Sea ◽  
2007 ◽  
Author(s):  
Peter Thomson
Keyword(s):  
Deep Water ◽  
Small World ◽  
English Word ◽  
Lake Basin ◽  
The World ◽  
Mountain Chain

The air smells of rain and autumn decay and sends cold, sharp fingers poking through our clothes as the Lonesome Boatman steers our little craft along the shore of the Holy Nose. Beyond the gunwales of the boat, spears of orange and emerald march up the steep hillside—the ubiquitous larch and birch, cedar and fir, muted under the thick sky. And behind this abrupt shoreline rises a dark mountain chain that extends fifty kilometers southwest along the length of the peninsula, mirroring the ridges of the Barguzin chain across the bay to the east and the unseen peaks of the Primorsky, Baikal, and Khamar Daban ranges hugging the lake’s western and southern shores. This is the vertiginous lay of the land around nearly all of Baikal’s shoreline. It’s not just the clear and deep water that can make one’s head spin. On all sides, mountains rear up five, six, and seven thousand feet above the lake, and then plunge past the surface and on toward the depths with barely a pause to acknowledge the change from air to water. Bobbing in a boat on its surface, you get the peculiar feeling that Baikal is itself contained by some larger vessel. One English word that I’ve heard used to describe the lake basin, in keeping with the notion of Baikal being a “sacred sea,” is “chalice,” like some kind of holy vessel cradling these mystical waters. You get the peculiar feeling, as well, that the world begins and ends here. There are no landmarks that are not part of the Baikal ecosystem, not a spot of earth on which a drop of falling rain doesn’t flow into Baikal. And despite the lake’s magnitude, it’s actually a very small world, at least the part that humans can occupy. Around most of the lake there’s almost no “shore” to speak of, just a narrow margin at the base of the mountains here and there where humans can get a toehold at the edge of the abyss.

scholarly journals Strengths and Weaknesses of the Management and Monitoring of Deep-Water Stocks, Fisheries, and Ecosystems in Various Areas of the World—A Roadmap Toward Sustainable Deep-Water Fisheries in the Northeast Atlantic?

2013 ◽  
Vol 21 (2) ◽  
pp. 157-180 ◽  
Author(s):  
Philip A. Large ◽  
David J. Agnew ◽  
José Ángel Álvarez Pérez ◽  
Christopher Barrio Froján ◽  
Rudi Cloete ◽  
...  
Keyword(s):  
Deep Water ◽  
Northeast Atlantic ◽  
The World
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