ONISCOIDEA. 

 Oahu and Kauai, Hawaiian Islands. 



741 



Length of body, eight lines. The acute latero-posterior angles of 

 the last abdominal segment are very short, not reaching beyond the 

 obsolescent rounded tooth at the base of the stylets. In this respect, 

 as well as the smooth body, much shorter space between the eyes, 

 and longer joints of the flagellum, this species differs from the L. occi- 

 dentalism The abdomen at base is but slightly narrower than the 

 posterior part of the thorax, the general outline of the two being con- 

 tinuous. The antennae are shorter and smoother than in the cursor, 

 with longer joints to the flagellum. 



Lygia vitiensis. — A species of Lygia was collected at the Feejees, 

 differing from the hawaiensis; but the only specimen is mutilated 

 in it3 last abdominal segment, besides wanting the stylets and 

 antennae. The surface is quite smooth, unlike the above ; also the 

 last abdominal segment is full twice as broad as long. The abdo- 

 men at its third segment is not abruptly narrower than the thorax, 

 and the sides of the third, fourth, and fifth segments are much pro- 

 longed backward. The legs have very few spinules on the joints. 

 The medial point of the posterior margin of the last segment of the 

 abdomen, appears to project but little beyond the low tooth at the 

 base of the stylets, the extremity being very low triangular. The 

 fourth joint of the sixth and seventh pairs of legs projects but little 

 (not half its length) beyond the side of the thorax, when in their 

 natural position for walking. 



Plate 49, fig. 5 a, extremity of abdomen, exclusive of latero-poste- 

 rior angles, which are broken, but appear, from what remains, to have 

 been rather long acute ; b, leg of fifth pair, enlarged. 



CRUSTACEA. LIBRAEf 

 SMITHSONIAN INST o: 

 KEIURN TO W-119 



Lygia Gaudichaudii ? 



Common at Manila, Luzon, and at Singapore. 



Plate 49, fig. 6 a, head and first thoracic segment; b, extremity of 

 abdomen ; c, caudal stylets ; d, base of antennae ; e, basal part of fla- 



186 



