CAJ | 학술논문

南海南沙群岛永暑礁南永3井揭示了1680年以来礁泻湖的沉积变化.沉积柱样主要由沉积遗壳组成,其中腹足类是最主要的类型之一.对该井88个样品分析共发现了159个种类和一些难以归人属种的胎壳,大多数种类为该海区首次记录的类型,有四个种是新发现的种类,即Astraea armata sp.nov.,Munditiella flammea sp. nov.,Serpulorbis spiralis sp.nov.,Cerithiopsis bellatulus sp.nov.,主要的优势种包括Acteocina coarctata,Acteocina exilis,Alvania sp.,Boschitestella eloiseae,Cerithidium fusca,Cerithiopsis ingens, Cerithium(Thericium) elegantulum,Circumstella biconcave,Clathrofenella reticulata,Diniatys dentifer,Granulina cotamago, Lophocochlias minutissimus,Merelina wanawana,Omalogyra cf.atomus,Ondina elachisinoides,Orbitestella bermudezi, Orbitestella decorata,Plesiotrochus acutangulus,Retusa (Ventomnestia) bizonata,Ringicula durodai,Ringicula columnifera,Ringicula niinoi,Scissurella coronata,Tricolia variabilis,Turbonilla eupellucida.这些种类个体非常微小,大多数小于2 mm.绝大多数种类为典型的热带海区分子,它们具有广泛的地理分布.本文按Okutani(2000)分类系统进行了分类,主要描述了仁螺目,古腹足目和盘足目共40个种的形态特征、地理分布和生态习性,包括2个新种,绝大多数种类系南沙群岛海区首次记录.
남해남사군도영서초남영3정게시료1680년이래초사호적침적변화.침적주양주요유침적유각조성,기중복족류시최주요적류형지일.대해정88개양품분석공발현료159개충류화일사난이귀인속충적태각,대다수충류위해해구수차기록적류형,유사개충시신발현적충류,즉Astraea armata sp.nov.,Munditiella flammea sp. nov.,Serpulorbis spiralis sp.nov.,Cerithiopsis bellatulus sp.nov.,주요적우세충포괄Acteocina coarctata,Acteocina exilis,Alvania sp.,Boschitestella eloiseae,Cerithidium fusca,Cerithiopsis ingens, Cerithium(Thericium) elegantulum,Circumstella biconcave,Clathrofenella reticulata,Diniatys dentifer,Granulina cotamago, Lophocochlias minutissimus,Merelina wanawana,Omalogyra cf.atomus,Ondina elachisinoides,Orbitestella bermudezi, Orbitestella decorata,Plesiotrochus acutangulus,Retusa (Ventomnestia) bizonata,Ringicula durodai,Ringicula columnifera,Ringicula niinoi,Scissurella coronata,Tricolia variabilis,Turbonilla eupellucida.저사충류개체비상미소,대다수소우2 mm.절대다수충류위전형적열대해구분자,타문구유엄범적지리분포.본문안Okutani(2000)분류계통진행료분류,주요묘술료인라목,고복족목화반족목공40개충적형태특정、지리분포화생태습성,포괄2개신충,절대다수충류계남사군도해구수차기록.
The Yongshu Reef lagoon of the South China Sea developed extremely abundant microgastropods in the late Holocene.Based on analyses of 88 samples in the core Nanyong-3 of Yongshu Reef lagoon recording sediments of the last 1 680 years,159 microgastropod species,including four new species such as Astraea armata sp.nov.,Munditiella flammea sp.nov.,Serpulorbis spiralis sp.nov.and Cerithiopsis bellatulus sp.nov.,have been described with the exception of some protoconches difficult in being diagnosed systematically.Dominated species in the core are Acteocina coarctata,Acteocina exilis,Alvania sp.,Boschitestella eloiseae,Cerithidium fusca,Cerithiopsis ingens,Cerithium(Thericium) elegantulum,Circumstella biconcave, Clathrofenella reticulata,Diniatys dentifer,Granulina cotarnago, Lophocochlias minutissimus, Merelina wanawana, Omalogyra cf. atomus, Ondina elachisinoides, Orbitestella bermudezi , Orbitestella decorata , Plesiotrochus acutangulus , Retusa (Ventomnestia ) bizonata, Ringicula durodai , Ringicula columni fera , Ringicula niinoi , Scissurella coronata , Tricolia variabilis, Turbonilla eupellucida. The microgastropods are small in size, generally less than 2 mm, and they are mostly typical tropic forms,having wider geographic distribution. This paper mainly describes 40 species , including two new species,under Order Cocculiniformia, Vetigastropoda and Discopoda with their geographic distribution and ecological habits based on systematical classification of Okutani (2000). The majority of species are the first records in this area.