448 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXII. 



SPHERARMADILLO SCHWARZI, new species. 



Description. — Body convex, contractile into a ball, a little more than 

 twice as long as wide, 50 mm. by 22 mm. Color yellow, with numerous 

 arborescent markings of dark brown. 



Head much wider than long, 3 mm. by 10 mm. with the front 

 straight and margined. The epistome has a slight shield-like con- 

 vexity. There is no trace of eyes. The first pair of antennae are rudi- 

 mentary and inconspicuous. The second pair have the first article 

 small ; the second is about twice as long as the first ; the third is equal 



SPHERARMADILLO SCHWAKZI, a, DORSAL VIEW, X 3; h, SECOND ANTENNA, X 7; C, FlaGELLUM OF 

 SECOND ANTENNA, X 7; d, LATERAL PART OF FIRST THORACIC SEGMENT (LATERAL VIEW), X 7; 



e, Lateral part of first thoracic segment (Ventral view), x 7; f, Last two segments of 



ABDOMEN WITH UROPODA, X 7: g, UrOPODA (VeNTRAL VIEW), X 7. 



in length to the second ; the fourth is one and a half times as long as 

 the third ; the fifth is a little longer than the fourth. The flagellum is 

 composed of three articles, the middle one of which is slightly shorter 

 than either of the others, which are subequal. 



The first thoracic segment is nearl^^ twice as long as any of the follow- 

 ing segments which are subequal. The first segment is 9 mm. in 

 length. Each of the following is about 5 mm. long. The lateral 

 parts of the first segment are slightly produced backward in rounded 

 lobes. Epimera or coxopodites are present on the underside and 

 extend in the form of a wide band along the entire lateral margin 

 almost to the posterior margin and are cleft posteriorly by a rather 

 deep fissure. The form and position of the coxo'podites give a thick- 



