.r NEW TERRESTRIAL ISOPOD OF THE GENUS PSEUD- 

 ARMADILLO FROM CUBA. 



By Harriet Rk^hardson, 



Collaborator, Division of Marine Invertebrates. 



Only one .species of this genus is known, Pseudarinadillo carimilatus 

 Saiissure. The species herein described, to which the name P. gillianus 

 is given, was collected at Niieva Vero!ia, Isla de Pinos, Cuba, by 

 Messrs. Palmer and Riley. Only a single specimen was sent to the 

 United States National Museum. 



Family ARMADILLIDID.E. 



PSEUDARMADILLO Saussure. 

 PSEUDARMADILLO GILLIANUS, new species. 



Bod}- strongly and thickly tul)crculate. The thorax is armed with 

 two longitudinal rows of long stout spines, each row being halfway 

 between the median line and the lateral margin. On the seventh 

 thoracic segment, however, the spines are closer together and are 

 much longer. A long median spine is present on the lifth abdominal 

 segment. 



The head has the anterior margin produced in three lol)es; a median 

 lobe, which is broad and roundly truncate, and two lateral lobes, 

 broadly rounded. The posterior portion of the head bears four 

 prominent tubercles in a transverse series, the two outer ones being 

 nuicb larger and stouter, with broad bases. The eyes are black and 

 distinct and are situated post-laterally. The antennte reach the middle 

 of the first thoracic segment; the flagellum is two-Jointed, the proximal 

 joint being three or four times shorter than the distal one. 



The first thoracic segment is covered with small tubercles, except at 

 the sides. The posterior portion of the lateral part of the segment is 

 produced backward a little, the post-lateral angulation })eing rounded. 

 The lateral border is curved upward, forming a slight concavity. On 

 either side of the segment halfway between the median line and the 

 lateral margin, and on the posterior part of the segment, is a long 



Proceedings U. S. National Museum, Vol. XXV— No. 1295. 



509 



