青岛沿海砂壳纤毛虫(原生动物,纤毛门,砂纤目)

对采自青岛沿海的9属26种砂壳纤毛虫进行了形态学描述,其中11种为中国新纪录种:简单薄铃虫Leprotintinnus simplex Schmidt,1901,波特薄铃虫Leprotintinnus bottnicus(Nordqvist,1890)Jorgensen,1912,波罗的拟铃虫Tintinnopsis baltica Brandt,1896,长形拟铃虫Tintinnopsis elongata Daday,1887,盾形拟铃虫Tintinnopsis urnula Meunier,1910,弯叶拟铃虫Tintinnopsis lobiancoi Daday,1887,管状拟铃虫Tintinnopsis tubulosoides Meunier,1910,小拟铃虫Tintinnopsis minuta Wailes,1925,塔拉卡拟铃虫Favella taraikaensis Hada,1932,太平洋领细壳虫Stenosemella pacifica Kofoid et Campbell,1929和贪婪铃壳虫Codonella rapa Kofoid et Campbell,1929.     

A new tintinnid ciliate(Ciliophora: Spirotrichea) from Yangtze River Estuary,with notes on its habitat

A new tintinnid ciliate, Tintinnopis estuariensis Zhang, Feng Yu, sp. nov. was found in the estuary of Yangtze River, China. It was most abundant in September. Its arenaceous lorica is cylindro-conical in shape,(120–180) μm×(50–75) μm in size, agglutinated with mineral particles, and open at both ends. Two characters distinguish it from others: the unique lateral flattened posterior portion with a vertical aboral opening and wider oral diameter. It occurred in water with surface temperature of 14–27°C and surface salinity of 3.9‰–29.8‰.     

Analyse biostratigraphique et paléontologique de l'Albien marin d'Estremadura (Portugal)

The marine Albain from Estremadura is splited up into four Orbitolinidae zones, adjusted to biostratigraphic scales from mesogean province: zone with Orbitolina (Mesorbitolina) minuta (lower to middle Albian); zone with Neorbitolinopsis conulus (base of upper Albian); zone with Orbitolina (Orbitolina) concava (top of upper Albian) and zone with Orbitolina (Orbitolina) duranddelgai (Vraconian). The vertical extension of the main fossils is replaced in the framework of these zones. The most interesting species for biostratigraphy, paleoecology or taxinomy are summarily described.     

世界今生砂壳纤毛虫名录

砂壳纤毛虫隶属于纤毛门、旋毛纲、环毛亚纲、砂壳目.本文总结了自Kofoid和Campbell(1929)以来的分类学资料,参照Lynn(2008)的分类系统,整理成世界砂壳纤毛虫新名录.厘清砂壳纤毛虫共有15科69属954种,其中海洋种为15科69属925种,淡水种为3科5属29种.在所有属中,以拟铃虫属(Tintinnopsis包含物种最多,为137种,其中海洋种为118种.我国水体共记录有13科36属164种,海洋种13科36属144种,淡水种2科3属20种.除杯形铃壳虫(Codonella cratera)、湖泊领细壳虫(Stenosemella lacustris)、蜉蝣筒壳虫(Tintinnidium ephemeridum)、蝌蚪筒壳虫(Tintinnidium ranunculi)、半缘筒壳虫(Tintinnidium semiciliatum)、纺锤拟铃虫(Tintinnopsis fusiformis)、伊利诺拟铃虫(Tintinnopsis illinoisensis)、卵圆拟铃虫(Tintinnopsis ovalis)、圆柱拟铃虫(Tintinnopsis cylindrata)、这9个种外,其他淡水种在我国都有记录.该名录中,除了已有中文名的159种外,其余的种我们给出了中文译名,并将部分译为似铃虫属(Tintinnopsis)的中文名统一为拟铃虫属,部分译为麻铃虫属(Leprotintinnus)的中文名统一为薄铃虫属,将截短角口虫(Salpingella decurtata)改为截短号角虫,将冰生拟铃壳虫(Codonellopsis glacialis)改为冰生类铃虫.     

New species of genera Tintinnopsis, Metacylis and Eutintinnus (Ciliophora, Spirotrichea, Tintinnida) from the Kuwaiti waters of the Arabian Gulf

The Kuwaiti waters occupy the northwestern part of the Arabian Gulf. These waters are shallow, well mixed, and characterized by a high level of biological productivity. Tintinnids form an important component of the microzooplankton community in Kuwaiti waters. They are particularly abundant in the northern waters of Kuwait, as well as in the waters of Kuwait Bay. However, the diversity of the tintinnid species has not been studied. Tintinnids were collected from Kuwaiti waters during a 1-year zooplankton survey, and tintinnid species were identified. In this paper four new species of tintinnids (Tintinnopsis failakkaensis, Metacylis pythos, Eutintinnus conicus, and E. contractus) are described from Kuwaiti waters. All these species occur commonly in these waters. Statistical comparative analysis is carried out on the basis of measurements taken from 400 specimens of tintinnids from Kuwaiti waters.     

Morphological and Ribosomal DNA‐based Characterization of Six Antarctic Ciliate Morphospecies from the Amundsen Sea with Phylogenetic Analyses

We characterized six tintinnid ciliates from Antarctic waters using molecular markers and morphological traits: Amphorellopsis quinquealata, Codonellopsis gaussi, Cymatocylis convallaria, Cy. calyciformis, Cy. drygalskii, and Laackmanniella prolongata. The 100% similarity in SSU‐ITS1‐5.8S rDNA‐ITS2‐partial LSU rDNA sequences among Cy. convallaria, Cy. calyciformis, and Cy. drygalskii is supportive of synonymy. Codonellopsis gaussi and L. prolongata also showed high levels of similarity in SSU rDNA (99.83%) and the D2 domain of LSU rDNA (95.77%), suggesting that they are closely related. Phylogenetic analysis placed Cymatocylis in the Rhabdonellidae, Amphorellopsis in the Tintinnidae and L. prolongata/Co. gaussi within the Dictyocystidae.     

广东沿海的砂壳纤毛虫及3种国内新纪录

对广东沿海的砂壳纤毛虫进行了初步研究,涉及7属16种,其中3种确定为中国的新纪录:僧帽壳铃虫Codonella apicata Kofoid&Campbell,1929,陀螺形拟铃虫Tintinnopsis turbo Meunier,1919和膨胀细壳虫Stenosemella expansa Wailes,1925。另有3种为我国亚热带海域的新纪录:筒状拟铃虫Tintinnopsis tubu-losoides Meunier,1910,罗氏拟铃虫Tintinnopsis lohmanni(J rgensen,1927)Laackmann,1906和贪婪铃壳虫Codonella rapa Kofoid&Campbell,1929。其余10种为常见种:百系拟铃虫Tintinnopsis beroidea Stein,1867,尖底拟铃虫Tintinnopsis acuminata(Daday,1887)Kofoid et Campbell,1929,妥肯丁拟玲虫Tintinnopsis to-cantinensis Kofoid&Campbell,1929,筒状拟铃虫Tintinnopsis tubulosoides Meunier,1910,管状拟玲虫Tintinnopsis tublosa Levander,1900,长形拟铃虫Tintinnopsis clongata Daday,1887,罗氏拟铃虫Tintinnopsislohmanni(J rgensen,1927)Laackmann,1906,小领细壳虫Stenosemella parvicollis(Marshall,1934)Hada,1935,钟状网纹虫Favella campanula(Schmidt,1901)J rgensen,1924和贪婪铃壳虫Codonella rapa Kofoid&Camp-bell,1929。文章对其形态分类学做了简要描述。     

Seasonal Changes in Lorica Sizes and the Species of Tintinnida in the New York Bight*

SYNOPSIS. Tintinnida of the New York Bight (a bend in the coastline) were identified during the 1-year period August 1973–August 1974. Recurring genera included Stenosemella and Tintinnopsis; seasonal genera were mainly the hyaline Favella, Metacylis, and Helicostomella; exotic or unusual genera included Parafavella and Ptychocylis. Large size differences in loricae were found seasonally, related apparently, to water temperature.     

Past President's Address: Protists of the Mesopelagic and a Bit on the Long Path to the Deep Sea

The deep sea has long been a mysterious and attractive habitat for protistologists. However, logistical difficulties severely limit sampling opportunities. Consequently, our knowledge of the protists in the deep sea, (arguably the largest habitat on earth), is relatively sparse. Here, we present a unique time‐series concerning three different protist taxa that share only the characteristics of being relatively large, robust to sampling, and easily identifiable to species level using light microscopy: tintinnid ciliates, phaeogromid cercozoans (e.g. Challengerids) and amphisolenid dinoflagellates. We sampled a near‐shore deep water site in the N.W. Mediterranean Sea at 250 m depth over a 2‐yr period at approximately weekly intervals from January 2017 to December 2018. To our knowledge, no previous studies have employed sampling on a similar time scale. We found taxa that appear to be restricted to deep waters, distinct seasonal patterns of abundance in some taxa, and in others nonseasonal successional patterns. Based on data from sampling following a flash flood event, the Challengerid population appeared to respond positively to a pulse of terrigenous input. Some of the distinct mesopelagic tintinnid ciliates and amphisolinid dinoflagellates were also found in two samples from the North Atlantic mesopelagic gathered from near the Azores Islands in September 2018. We conclude that there are a variety of protist taxa endemic to the mesopelagic, that the populations are dynamic, and they may be widely distributed in the deep waters of the world ocean.