Studies on the unpublished specimens of Japanese animals collected by von Siebold and still preserved in the museums in the Netherlands

冯·西博尔德在他的助手H.汉堡，大量的日本动物标本在日本，并把它们带到荷兰。这些研究由莱顿的Rijksmounge货车Natuurlijke Historie（莱顿博物馆）的专家进行，研究结果发表在由von Siebold编辑和出版的Fauna Japonica上。莱顿博物馆至今仍保存着大量的此类标本。我们主要在莱顿博物馆进行了调查，共检查了2800件腔肠动物、触手、昆虫、甲壳类动物、鱼类、两栖动物、爬行动物、鸟类和哺乳动物的标本。有些物种有相当大的一系列标本。冯·西博尔德-伯格的部分动物学收藏品被分发给欧洲其他自然历史博物馆，并出售给经销商。为了找到带出的标本，我们检查了包括现在存放在莱顿博物馆的交换清单在内的文件。记录的标本数量与莱顿博物馆现存的实际标本数量之间的差异表明，近60%的鸟类和哺乳动物以及15%的甲壳类动物被带出。研究了现存放在莱顿博物馆的川原庆贺制作的甲壳类动物、鱼类和哺乳动物的彩色照片。此外，我们还发现了另外44幅精美的两栖动物和爬行动物的图片，这些图片很可能是由川原庆贺应冯·西博尔德的要求制作的。在莱顿博物馆，我们发现了一块石版石，上面写着日本动物。一幅用它复制的相当漂亮的版画表明，这是《日本动物志》第六卷的第十五版，其中有两幅海参的插图。这一事实表明，至少有15个板块准备为未出版的第六卷的动物日本处理棘皮动物。

Von Siebold collected, with the help of his assistant H. Burger, numerous specimens of Japanese animals in Japan and slopped them off to the Netherlands. Those were studied by specialists at the Rijksmuseum van Natuurlijke Historie in Leiden (Leiden Museum) and the results were published in Fauna Japonica which was edited and published by von Siebold. The Leiden Museum still holds a large number of these specimens.We conducted the survey mostly at the Leiden Museum, examining a total of 2, 800 specimens of coelenterates, tentacles, insects, crustaceans, fishes, amphibians, reptiles, birds and mammals. Some species are represented by a fairly large series of specimens.Part of the von Siebold-Burger's zoological collection was distributed to other natural history museums in Europe and sold to dealers. In order to locate the specimens brought out, we examined documents including exchange lists now housed in the Leiden Museum. The difference between the number of the specimens recorded and the actual number of specimens now at the Leiden Museum shows that nearly 60 % of the birds and mammals and 15 % of the crustaceans were brought out.Color pictures of crustaceans, fishes and mammals made by Kawahara Keiga now deposited in the Leiden Museum were studied. In addition, we found another 44 beautifully executed pictures of amphibians and reptiles which were in all probability made by Kawahara Keiga at the request of von Siebold.In the Leiden Museum, we discovered a lithographic stone with an indication of Fauna Japonica. A print fairly beautifully reproduced using this showed that it is the fifteenth plate of the sixth volume of Fauna Japonica in which two pictures of a sea cucumber are illustrated. This fact indicates that at least 15 plates were prepared for the unpublished sixth volume of Fauna Japonica dealing with Echinodermata.