Six New Species of Fresh and Brackish Water Ostracods (Crustacea) from Yakushima, Southern Japan
Twelve species of brackish and freshwater ostracods were collected from the island of Yakushima in southern Japan. Six species, belonging to the genera Cypria, Dolerocypris, Stenocypris, Schellencandona and Paracypria, are new and are described herein. The genus Schellencandona is reported for the first time outside Europe. Although a wide range of apparently suitable habitats was sampled for ostracods across the island, all specimens were recovered from or near the coast; further inland yielded no ostracods. The freshwater habitats around the coast of the island consist of springs and rockpools at the top of the shore above most high tide levels.
Ecology and Distribution of Groundwater Crustacea and Freshwater Ostracoda in SW Honshu and the Nansei Islands, Japan. I Groundwater Crustacea & List of Stations
This project was originally planned to take place in the summer of 1985. Due to unforeseen circumstances it could not in fact be carried out until the autumn of 1986. This meant that some aspects of the project had to be changed because of seasonal influences. One major drawback was the absence of any flooded rice fields, because the fieldwork was done after the growing and harvesting of the rice. It was therefore impossible to collect any ostracods from ricefields in south west Honshu. Since the rice fields are one of the major ostracod habitats in Japan, this meant a dramatic decrease of the number of possible collecting sites.
TERMINOLOGY FOR SURFACE FEATURES IN ORNATE OSTRACODES
The surface ornament of the ostracode carapace is shown to be composed of structural elements extending into the thickness of the shell. A terminology is proposed for surface features newly revealed by scanning electron microscopy.