ISOPODft OB' NORTH AMERICA. 



649 



shorter than the fifth. The last abdominal segment a little transverse, 

 constricted in the middle. The uropoda wide, not longer than the 

 width at the base, with the inner posterior angle widely excavated, the 

 anterior, posterior, and external sides almost straight and rectangular, 

 the inner anterior angle truncate, the outer anterior angle rounded, 

 posterior branch minute, scarcely projecting. Length, 4i lines." 



CUBARIS ZIGZAG (Dollfus). 



Armadillo zif/zny DOLLFI T S, Proc. Zool. Soc. London, 1896, pp. 394-395. 

 Cuba-ris zigzag RICHARDSON-, Proc. U. S. Nat, Mus., XXIII, 1901, p. 572. 



Locality. St. Vincent, West Indies. Forest, damp ground under 

 rubbish, 1,000 feet. 



"Bodj r convex, smooth. Cephalon: prosepistoma plain, fore edge 

 nearl}' straight. Eyes small; about 12 ocelli. Antennae short; first 

 joint of the flagellum twice as short as the second. Pereion: first 

 segment with a slightly perceptible antero-median tubercle; edges 

 hardly raised; coxopodite distinct on the entire length of the edge 



FIG. 692. CUBARIS ZIGZAG (AFTER DOLLFUS). a, HEAD AND FIRST TWO SEGMENTS OF THORAX 

 (UPPERSIDE). b, HEAD AND FIRST TWO SEGMENTS OF THORAX (UNDERSIDE), c, FIFTH AND SIXTH 



SEGMENTS OF ABDOMEN AND UROPODA (UPPERSIDE). '/, THE SAME (UNDERSIDE). 



(underside), not divergent. Coxopodite of the second segment nar- 

 rowly quadrangular. Pleon, telson: pleotelson as wide as long; sides 

 feebly curved; apex with rounded angles, half as wide as the basis. 

 Uropoda: basis oblique, endopodite reaching to one-half the length 



The above description is adapted from the following one of Dana's: 

 Corpus superficie keve et innotatum. Antennae subtilissime scabriculse, articulis 

 duobus ultimis conjunctis (6 to 7 moque) 5to parce brevioribus. Segmentum abdo- 

 mini& ultimum paulo transversum, medio constrictum. Styli caudales lati, latitudine 

 basali non longiores, angulo interno-postiore late excavato, lateribus antico postico 

 et externo fere rectis et inter sese rectangulatis, angulo interno-anteriore truncato, 

 externo-anteriore rotundato, raino posteriore minuto, parce exserto. Long. 4J///. 

 DANA, Proc. Acad. Nat. 8ci. Phila., VII, 1854-55, p. 176. 



