740 



CRUSTACEA. 



Lygia australiensis.— (PL 49, f. 3.) We thus indicate a species 

 which was collected by us in New South Wales, but of which our 

 single specimen is in too mutilated a state for full description, as it 

 wants both the antennas and stylets. The abdomen has the three 

 segments before the last but little prolonged backward on either side, 

 and the sides of the penult do not reach halfway to the angles of the 

 last segment. The posterolateral angles of the last segment are very 

 short acute, and do not reach beyond the low tooth on the posterior 

 margin at the base of the stylets. The body is rather narrow, and 

 the surface is fine granulous all over, the granules scattered. Length 

 of body, seven lines. 



Lygia hawaiensis. 



Corpus sat latum, fere loeve, ad abdominis basin paulo interruptum, 

 Oculi pergrandes, superficie frontali oeulos sejungente duplo breviore 

 quam oculi. Antennas fere corporis longitudine, flagello 27-2S-articw- 

 lato, articulis plerumque triplo vel quadruplo longioribus quam latis, 

 spinulis subtilissimis, perpaucis, dimidio latitudinis articuli brevioribus. 

 Segmentum abdominis ultimum non duplo latius quam longum, angulis 

 postero-lateralibus brevissime acutis, margine postico paido triangu- 

 lato, versus angulos parce undulato sine dente acuto. 



Body rather broad, very nearly quite smooth, a little interrupted at 

 base of abdomen. Eyes quite large, the frontal surface between 

 them, not half as great as the horizontal length of the eye. An- 

 tennas very nearly of the length of the body ; flagellum 27-28- 

 jointed, joints mostly three or four times as long as broad; spinules 

 very minute and few, not as long as half the breadth of the joints. 

 Last segment of abdomen not twice as broad as long; posterior 

 angles very short acute; posterior margin somewhat triangulate, 

 towards the angles a little undulate, but without an acute tooth. 



Plate 49, fig. 4 a, animal (except caudal stylets), enlarged three 

 diameters ; b, part of flagellum of antennas from basal half; c, extre- 

 mity of flagellum; d, extremity of leg of seventh pair; e, outline of 

 extremity of abdomen, more enlarged. 



