NATURAL HISTORY OF SUBMARINE CAVE MOLLUSCS

本文记述了帕劳海底洞穴中奇异腹足类Pluviostilla palauensis的新属、新种。这一物种的贝壳形态在现代和灭绝的腹足类中尚不清楚。2.在冲绳海底洞穴中描述的活生生的牡蛎化石Picnodonte Taniguchi在印度-太平洋海底洞穴中广泛存在。这些软体动物在印度洋-太平洋海底洞穴中具有相似的属群。3.发现腹足科Pickworthiidae(海底洞穴中的特征)2新属4新种。4.对典型的洞穴腹足类Pisulina属进行了甲壳学研究，共识别出6种，其中2种为新种。这项研究表明，Pisulina(海底洞穴)和Neritillia(河流)构成了Neritilidae的单系分类单元。5.从马绍尔群岛的中新世沉积物中描述了Neritilidae一新属和一种。6.Troglobal concha ohashii和T.tesselata gen.11月和SP…更多。11月在印度-太平洋的海底洞穴中发现了2个新属和几个新种，这些新属和新种分布于珊瑚生境、海底生境和河流。8.在冲绳海底洞穴中发现一新种。9.从海底洞穴中发现的Pisulina种，以及在珊瑚、水下生境和河流中发现的蠕形类腹足类动物的解剖学研究支持甲壳学研究提出的Neritilidae的单系性。这项研究还表明，睡莲类通过地下生境，如钩状生境和浅水生境入侵陆地。28S rDNR分析表明，Neritopsina亚目在其进化历史中至少3次入侵陆地。Neritilidae在渐新世以前采用海底洞穴等隐蔽生境，并通过触角生境和浅水生境入侵河流。较少

1A new genus and species of bizarre gastropod, Pluviostilla palauensis, was described from a submarine cave of Palau. The shell form of this species is unknown among modern and extinct gastropods.2.The living fossil oysters, Picnodonte taniguchi, described from submarine caves of Okinawa is widespread in the Indo-Pacific submarine caves. The mollusks comprise similar generic associations in the Indo-Pacific submarine caves.3.Two new genera and 4 new species of the gastropod family Pickworthiidae (chrcteristic in submarine caves) were discoverd.4.The genus Pisulina, a typical cave gastropod, was studied conchologically, resulting recognition of six species, of which two are new species. This study demonstrated that Pisulina (submarine caves) and Neritillia (river streams) constitutes the monphyletic ne taxon Neritiliidae.5.One new genus and species of the Neritiliidae was described from the Miocene deposits of the Marshall Islands.6.Trogloconcha ohashii and T. tesselata gen. nov. and sp … More . nov. are described from the submarine caves in the Indo-Pacific.7.Two new genera and several new species of the family Neritiliidae were discoverd from anchialine and hyporheic habitats and river streams. One species previously assigned Teinostoma was reassigned to Neirtilia.8.A new species of the mysid genus Heteromysoides was found from the submarine caves of Okinawa.9.The anatomical studies of Pisulina species from submarine caves and neritiliid gastropods discovered from anchialine and hyporheic habitats and river streams supported the monophyly of the Neritiliidae already suggested by conchological study. This study also demonstrated that the neritiliids invaded land via subterranean habitats such as anchialine and hyporheic habitats. A 28S rDNR analysis reverled that the suborder Neritopsina invaded land at least three times in their ecolutionary history the Neritiliidae adopted cryptic habitats such as submarine cave by an Oligocene time, and invaded river streams via anchialine and hyporheic habitats. Less