THE AEMADILLIDIDiE 433 



Bnclde-Lund gives in effect the following ' Conspectus 

 Generum : ' — 



I. Outer branch of the uropods small or minute, rather 

 smooth. 



A. Terminal segment not shorter than the uropods. 



a. Terminal segment apically truncate. 



1. Cuharis. 2. Euhelum. 3. Pseudarmadillo. 



b. Terminal segment apically acuminate. 



4. PerysGi/phis. 



B. Terminal segment shorter than the uropods, 



broadly triangular. 



5. 8phceroniscus. 6. Cijlloma. 



II. Outer branch of the uropods large, flattened, lamellar. 



7. Minna. 8. Armadillidium. 



Cuharis, Brandt, 1833, appears to be the earliest 

 synonym of Armadillo, Latreille, 1804, which is not only 

 preoccupied, but has had the type-species removed to 

 another genus. Under the name ArmadUlo, Budde-Lund 

 gives descriptions of thirty-six species, and the names of 

 some twenty-four more. Only two or three of this host 

 are found in Europe, seven belong to South Africa, five to 

 South America, a great number occur in the islands and 

 coasts of the Pacific, while from the whole mainland of 

 Asia not one is known, except Cuharis officinalis (Des- 

 marest), a species found all round the Mediterranean. 

 Dollfus adds Armadillo melanurus, 1887, Armadillo java- 

 nensis, 1889, Aiinadillo trifolium, 1890, and Armadillo albo- 

 marginatus, 1892. In this genus the flagellum of the second 

 antennge is two-jointed. 



Eubelum, Budde-Lund, 1885, has the flagellum of the 

 second antennge three-jointed, the last segment of the pleon 

 in the middle squarely produced. As in the preceding 

 genus the opercular branch in all the pleopods is tracheal. 

 The only species is Euhelum lidmcum, from South Africa. 



Pseudarmadillo, de Saussure, 1858, has very small, un- 



