Amyda

Abstract: The distribution of Ohio reptiles was worked out by Conant (1938), and the host names used below are those given by him. Ten species of turtles have been recorded from Ohio. Of these, the Cumberland terrapin, Pseudemys scripta troostii (Holbrook), and the brown soft-shelled turtle, Amyda mutica (Le Sueur), are rare, and local in distribution. In addition to these, we were unable to obtain specimens of the musk turtle, Sternotherus odoratus (Latreille), which, while not common, is rather widely distributed over the State. The seven species of turtles examined were as follows: spiny soft-shelled turtle, Amyda spinifera (Le Sueur); snapping turtle, Chelydra serpentina, (Linne); painted turtle, Chrysemys bellii marginata Agassiz; spotted turtle, Clemmys guttata (Schneider); Blanding's turtle, Emys blandingii (Holbrook); geographic terrapin, Graptemys geographica Le Sueur; and the land turtle Terrapene carolina (Linne). The number of host specimens examined of certain species is not adequate, but since there is no probability that additional specimens will be obtained from this area, the data are presented with these inadequacies. A summary of the results is shown in table 1. While we realize that our material cannot be considered sufficient in amount to allow for an ecological study, it seems desirable, nevertheless, to present short descriptions of the major habitats from which the animals were collected. This may be of value to someone doing work of a similar nature in the future. It is hoped that future workers will attempt to correlate distribution of the parasite with the ecology of the host, since little is known of the epidemiology of the helminths parasitic in wildlife. The locations from which collections were made are indicated by number on the map (Fig. 1.), and descriptions of these habitats are given below.

Abstract: 1. Cotylaspis sinensis and Lophotaspis orientalis are described as new species of trematodes from the small intestine of the turtle, Amyda tuberculata, from Foochow, Fukien Province, China.2. Stichocotyle cristata is described as a new species from the spiral valve of the cow-nosed ray, Rhinoptera quadriloba, from Biloxi Bay, Mississippi.3. A new subgenus, Multicalyx, is created for the species Stichocotyle cristata, while the species S. nephropis appropriately belongs to a new subgenus Stichocotyle.4. Evidence is provided that aspidogastrid worms are referable neither to the Monogenea nor the Digenea, but belong to an intermediate subclass group, Aspidogastrea, n.n.5. The genus Stichocotyle has been removed from the family Aspidogastridae Poche, 1907, and placed in a new family, Stichocotylidae.