67 



Bate also says that his forms are from fresh water, but 

 species in which the same development may be observed 

 (JP. spinimanus, grandimanus, jamaicensis, forceps, etc., 

 etc.) are far from being uncommon in salt water. 



92. Palsemon forceps Echo., Hist. Nat. des Crust., 1837, ii, p. 

 397. Saussure, Crust. Mex. et Aut., 1858, p. 51. Smith, Trans. Conn. 

 Acad., 18G9, p. 24. Palcemon dasydactylus Streets, Proc. Phila. Acad., 

 1871, p. 225, pi. II, f. 3. 



Gulf of Mexico, West Indies, Brazil. 



93. Palsemon consobrinus Saussure, 1. c, p. 53. 

 Gulf of Mexico. 



94. Palsemon mexicanus Saussure, 1. c, p. 52, pi. IV, f. 27. 

 Coast of Mexico. 



95. Palsemon sexdentatus Streets, Proc. Phila. Acad., 1871, p. 

 226, pi. II, f. 4. 



Isthmus of Teh uan tepee. 



I am inclined to believe this to be (as suggested by Dr. 

 Streets) a variety of the preceding species. 



96. Palsemon tenellus Smith, Second and Third Reports of the 

 Peabody Academy of Science, 1871, p. 98. 



West coast of Nicaragua. 



97. Palsemon ohionis Smith, Rep. U. S. Fish Coram., 1872-3, 

 p. 640. Forbes, Bulletin No. 1 Illinois Museum of Natural History, 

 1876, p. 5. 



Ohio and Mississippi Rivers. 



98. Palsemon spinimanus Edw., Hist. Nat. des Crust., 1837, ii, 

 p. 399. 



West Indies, Brazil. 



99. Palsemon faustinus Saussure, 1. c, 1858, p. 53, pi. IV, f. 30, 

 Hayti. 



I am unable, without specimens, to separate this from 



