Feb., 1907.] Notes on a Sandusky Bay Shrimp. 



73 



NOTES ON A SANDUSKY BAY SHRIMP, PALAEMONETES 



EXILIPES STIMPSON.* 



William B. Herms. 



During the summer of 1904 the writer secured several speci- 

 mens of Palaemonetes for a brief morphological stud}'. These 

 specimens were taken in the waters of Sandusky Bay, Lake Erie, 

 at what is called Black Channel. Before this time specimens had 

 been brought into the Ohio State University Lake Laboratory 

 at intervals, but in some seasons were difficult to secure. During 

 the summer of 1905 not one was brought in. In August of 1906. 

 at the close of the summer session the writer was collecting 

 sponges near Black Channel, when two or three specimens were 

 again unexpectedly taken. This led to a more extended search 

 which resulted in the collection of many specimens, not only in 

 Black Channel but also in the neighboring coves. 



Fig. 1. Palaemonetes exilipes, Stimpson. 



A few of the shrimps collected were sent to the Smithsonian 

 Institution for identification. Miss Mary J. Rathbun, of the 

 Division of Marine Invertebrates kindly identified them as Palae- 

 monetes exilipes, Stimpson, widely distributed through the 

 eastern half of the United States excepting New England. Miss 

 Rathbun also stated that this shrimp grows to be two or three 



* Read at the meeting of the Ohio Academy of Science, Dec. 1. 1906. 



