4 SMITHSONIAN MISCEIvIvANEOUS COLLECTIONS 



Stimpson enumerated the manuscript and drawings of the final 

 report on the Crustacea Brachyura and Anomura. After his death, 

 in 1872, however, this report was discovered at the Navy Depart- 

 ment, and was sent to the Smithsonian Institution, where it has re- 

 mained to the present time unpublished.^ 



In the meantime there are few students of the higher Crustacea 

 who have not felt the need of more light on those rare genera and 

 species known only from brief Latin diagnoses. 



The following report has been treated as an historical document, 

 and is published substantially as it was written by the author, the 

 only additions being the references to his preliminary descriptions 

 and the footnotes giving the current or accepted name where it dif- 

 fers from that used by Dr. Stimpson. It is hoped that the value of 

 the descriptions will more than compensate for the antiquated 

 nomenclature. 



Numbers corresponding to those in the preliminary papers have 

 been placed before each species for ready reference. The illustra- 

 tions are from pencil drawings made, it is supposed, by Dr. Stimpson 

 himself. 



The many gaps in the illustrations and the absence from text or 

 figures of any reference to the family Rhizopidse are attributable to 

 the withdrawal of these parts by Dr. Stimpson. 



Mary J. Rathbun. 



^ Short extracts from the Maioidea were published in the Proceedings of 

 the United States National Museum, xv, pp. 276-277, pi. xl, 1892; xvi, pp. 

 95-103, pi. vni, 1893. 



