摘要:In the South China Sea region, members of the Sargassaceae are the largest seaweeds and are of economic value in the industries. On the extensive reefs around the Xisha islands, there are several species of this family which are present in large quantities. In the present study a taxonomic study of five species of Xisha Sargassum was made. Two new species were reported, namely S. subtilissimum and S emarginatum.
摘要:Our recent investigations have shown that the Xisha Islands(Guangdong Province, China )have a rich corallinaceous flora. In the present paper, six of the commoner species are reported. With the exception of Jania adhaerens Lamx, already reported from our Taiwan Province, the other five species, namely, Porolithon onkodes (Heydr.) Foslie, Hydrolthon reinboldii (Web. v. Bosse et Foslie) Foslie, Neogoniolithon frutescens (Foslie) Setch. et Mason, Amphiroa fragilissima (Linn.) Lamx. And Jania radiata Yendo, are recorded for the Chinese marine flora for the first time.
An analysis of the corallinaceous components of the coral reefs of the Xisha Islands shows that the so-called Porolithon ridge has also been involved. It was found that in some places on the windward side of the reef more vigorously influenced by strong wave action, Porolithon ridge may occupy as much as 50-70% of the reef surface. In this respect, the role of corallinaceous algae in the reef formation in the Xisha Islands is very similar to that of the Marshall Islands (Taylor, 1950) and of the Solomon Islands (Womersley and Bailey, 1970).
摘要:Until now our knowledge of the marine vegetation of Xisha Islands in the central South China Sea has been very limited. It is therefore our aim to report in this series of article, hitherto unrecorded and little known marine red algae from Xisha Islands.
In the present paper six species are reported; of these, one is new and one is recorded for the first time from Chinese waters.
The specimens studied including the type specimens are all deposited in the herbarium of the Institute of Oceanology, Academia Sinica at Tsingtao.
摘要:Our investigations on the marine flora of the Xisha Islands(Guangdong Province,China) have shown the richness of the chlorophyeeaceous flora in these South China Sea Coral Islands.So far, 26 species have already been reported (Tseng and Chang,1962;Fan,1963;Tseng and Dong,1975 and Chang,Xia and Xia, 1975),among which 8 species were newly described species, showing a rather high percentage of endemic elements.
In the present paper, fourteen more species of marine green algae are added to the Xisha flora. Seven species are new additions to the marine flora of China, including one new species,namely, Chlorodesmis sinensis. The other six species are Cauperpa brachypus Harv, Tydemania expeditionis Weber-van Bosse. Codium ovale Zan., Halimeda micronesiea Yam, Acetabularia clavata Yam. and A. tsengiana Egerod.These species recorded for the Chinese marine flora for the first time are fully deseribed on the basis of our own materials, to facilitate better understanding of these seaweeds.
摘要:In this paper, a new species of diatom-Striatella nanhainica was recorded,which was collected from the Xisha I and Zhongsha I, Guangdong Province,China, 'in May-june, 1974 and March-april, 1975.
摘要:This is the first part of a series papers dealing with the marine blue-green algae of the Xisha Islands-a group of South China Sea coral islands. The materials for study are chiefly based on the collections made by the Institute of Oceanology,Academia Sinica in 1975 and 1976.
The present paper deals with 11 species of the marine blue-green algae belonging to 6 genera and 1 family, and they are all recorded for the first time from Xisha Islands, although among them Phormidium tenue had also been recorded as a subaerial blue-green algae collected from Yongxing Island in 1948. and four species (with asterish) are recorded for the first time from China. Most of the species on the Xisha Islands are cosmopolitan or widespread species.
摘要:The present paper is the continual part of a report on the echinoderms of Xisha Islands. A total number of 598 specimens of ophiurans was examined. They include 38 species belonging to 16 genera, 8 families and 3 orders. Of these two species, namely Macrophiothrix unicolor and Ophiotylos brevipes, are new to science and 12 species are recorded for the first time from China.
A list of species is given on page, 64 in which those marked with an asterisk are the species recorded from China for the frist time.
The following species call for notes or full description.
摘要:The present paper is the third part of a.report on the echinoderms of Xisha Islands-Echinoidea. The material for study was based on the collections made by the Institute of Oceanology, Academia Sinica during 1956-1958 and1975.A total number of 192 specimens of echinoids was examined. Twenty-six species,including three subspecies belonging to 21 genera, 13 families and 7 orders were identified. Of these one species is new to science and 8 species are new additions to the fauna of China.
A list of the species is given on pages 101 in which those marked with an asterisk are the species recorded from China for the first time.
As to the system of classisication,we have followed T. Mortensen in his wellknown work ‘Monograph of the Echinoidea'.
摘要:The tridacnids or giant clams live in shallow waters of tropical coral reefs. The distribution of this group is limited to the Indo-Pacific region. Up to date, only six species are reported living today.
The Xisha Islands affords a suitable habitat for these clams, all six species being found here.
Hippopus hippopus (Linnaeus )is known for their large size, the largest reported specimen being 397 mm long, collected from Palm Island off Queensland (Hedley, 1923). Other large records are 329 mm (Rosewater, 1965)and 336 mm(Smith 1898), both from the Philippines. The largest specimen from the Xisha Islands measures 380 mm.
摘要:Two new species of Serpulidae herein deseribed are amongst the material of polychaetes collected from Xisha Islands, Guangdong Province. Description of the two new species is as follows.
摘要:A synoptic biological survey of the Xisha Islands carried out in 1957 by the Institute of Oceanology, Academia Sinica yielded among other materials three samples of foraminifera-rich shore sands.Coral debris and empty tests of benthonic foraminifera made up the main contents of the samples. By means of the carbon tetrachloride flotation method, the foraminifera were easily separated for examination and identification.