ISOPODS OF NORTH AMERICA. 



665 



HAPLARMADILLO MONOCELLATUS Dollfus. 



Haphrmadttlo nniniM-i'll<ttiis Dou.Krs, Proc. Zool. Soc. London, 189*5, p. 400. 

 RICHARDSON, Proc. I". S. Nat. Mus., XXIII, 1901, p. 573. 



Locality. Richmond Valley, St. Vincent, West Indies. Under rot- 

 ting leaves, l,ioo feet. 



" Body convex, smooth, and covered with minute, setose hair. 

 Cephalon: prosepistoma with a shield-like convexity. Eyes mono- 

 cellate, hardly perceivable. Antenna? very hairy; flagellum single- 



b 



FIG. 706. HAPI.ARMADIJ.I.O MONDCKLLATUS (AFTER DOLLFUS). , HEAD AND FIRST TWO SEGMENTS 

 OF THORAX ( rPPKR SIDE). 6, THKSAME ( l - NDK':<! \1Y.\ . f. FIFTH AND SIXTH SEGMENTS OF ABDO- 

 MF.N M 1'1'F.K SIDE). '/. THE SAME ( I'NDERSIDE ). 



jointed, with a long, stitf hair at its distal end. Pereion: tirst segment 

 with a very blunt antero-median tubercle; hind edge nearly straight; 

 sides feebly raised forward; coxopodite distinct on the posterior half 

 of the edge. Second segment with no distinct coxopodite. Pleon. 

 telson: pleotelson widely triangular, much wider than long. Uropoda 

 with a square basis, longer than the pleotelson; endopodite as long as 

 the basis; e*xopodite minute, placed at the internal distal angle of the 

 basis. Color: dark gray, variegated with lighter lineola? and irregu- 

 lar stripes. Dimensions: 9 by 4 mm." DOLLFUS. 



12O. Genus ARMADILLIDIUM Brandt." 



First pair of antenna? very small, inconspicuous. Body oblong, very 

 convex, and contractile into a ball. 



Front of head marginate, lateral lobes rounded. Epistome vertical, 

 forming a triangular shield, advancing more or less beyond the frontal 



" For characters of genus, see Budde-Lnnd, Crust. Isop. Terrentria, 1885, p. 49, and 

 T. O. Sars, Crust, of Norway, II, 1899, p. 188. 



