6(^8 BFLLKTIN rA, T-^NTTED STATES TSTATrONAL MTTSEUM. 



Head imicli widci- than loiiu-. Ik iniii.: 4 nun., with the front straight. 

 Epistoiiie proipc'ts hut little heyond the t'l'ontal niarj^in The eyes are 

 small, round, composite, and situated in the antero-lateral anoles of 

 the head. The first pair of antenna' are rudimentary and inconspicu- 

 ous and are composed of three articles. The second pair of antenniv 

 have the first article slioi't; the second is about four times as long as 

 the first; the third is about half as long as the second; the fourth is 

 one and a half times longer than the third; the fifth is twice as long- 

 as the fourth. The flagellum is composed of two nearly equal articles. 

 The second antemia' extend to the posterior margin of the first thoracic 

 segment. The maxillipeds have a palp of three articles. The palp of 

 the mandibles is wanting. 



The segments of tiie thorax are subequal, each being 2 nun. in 

 length. There are no epimera separated ofi' on any of the segments. 



The abdomen is as wide as the thorax. The first two segments are 

 covered at the sides by the seventh thoracic segment. The sixth or 

 terminal segment is 2 mm. wide at the base and 1^ mm. long. It 

 tapers to a truncate extremity, which is 1 mm. wide. The uropoda 

 are not longer than the terminal segment of the body. The peduncle 

 is not visible in a dorsal view. The outer branch is broad and fills in 

 the space between the sixth abdominal segment and the lateral p«rt of 

 th^ fifth segment; it is truncate at its posterior extremity. Tlie inner 

 branch is narrow and elongate, but does not ex- 

 tend beyond the extremity of the abdomen. 

 All the legs are amljulatorv. 



ARMADILLIDIUM QUADRIFRONS Stoller. 



Arnmd'diidium quadrij'rons Stoller, 54th Rei)ort of the 

 New York State Museum, 1902, i)}). 211-212. 



Local tty. — Schenectady, N(^w York. Found in 

 greenhouses. 



Body ovate, contractile into a ball; nearly twice 

 as long as wide, 5 nun.: !» mm. 



Head nearly three times as wide as long, with 

 a small, median V-shaped notch. The epistome 

 is triangular in shape; the broad, basal part being- 

 anterior and projecting in front of the head, giv- 

 Fi(i. 707.— armadillidum ing the head th(> appearance of having a broad, 

 MiA.m.FBONs (AKTKH jj^^ratc uiediau lob(^ The eyes are small, com- 



Stoller). x -i;. i 



posite, and situated in the antero-lateral angles. 



A groove st4)arates the antero-lateral margin of the head from the 



antennal lobe, which is large and conspicuous and well roundinl. In 



this groove the antenna lie. The first pair of antennie ai-e small 



and inconspicuous. The second pair hav(^ the first ai'ficle short; the 



second is twice as long as the first; the third is a little shorter than 



