of Terrestrial I.<opoda from India. 207 



PorceUio immsi, s|). n. 



Budy oblonj^-ovalj somewhat dopressed ; metasome a little 

 narrower than the niesosome, the segments of the latter finely 

 tnberculated, whilst those of the former have a single row of 

 tooth-like tubercles on the posterior margin of each segment. 

 Cephalon (PI. IX. figs. 1 & 2) with numerous large 

 tubercles; the anterior margin is turned backwards; lateral 

 lobes well developed ; median lobe small, formed by the 

 right and left portions of the anterior margin, which do not, 

 however, meet; epistoma convex. Eyes large, 8ublateral. 

 Antennulw small, 3-jointed. Antennty (tig. 3) slender, with 

 the second to fifth joints carinated ; the second, third, and 

 fourth are characterized by deep indentations at their distal 

 ends ; flagellum 2 jointed, almost equal in length. Man- 

 dibles and first maxillas (fig. 4) typical of the genus. Second 

 maxillse (tig. 5) thin and platc-iike ; tiie inner lobe terminates 

 in a dense mass of setse, wliilst the outer lobe is devoid of 

 seise, but between the two h^bes there are three or four long 

 hair-like seta?. The segments of the niesosome are somewhat 

 depressed ; the lateral plates of the first partly surround the 

 head, the remainder are normal and sliglitly overlap one 

 another. Maxillipedes (fig. 6) with outer palp terminating 

 in a short blunt ^pine with three smaller ones ; the inner 

 j)alp has a single spine only. Thoracic appendages {^^g. 7) 

 comj)aratively short and thick, the three terminal segments 

 fringed with short spines, and the third and fourth liave a 

 series of tooth-like projections on the terminal border, and the 

 fourth a groove on the anterior face lined with fine, short, 

 hair-like set?e. The posterior angle of the lateral plates of 

 the metasome producetl backwards (tig. 9). Uropoda (fig. 8) 

 extending beyond the telson ; basal plate small and cube-like, 

 with raised portions on the outer and inner sides; exopodite 

 nearly three times the length of the basal plate, carrot- 

 shaped, setose, and articulating at the distal end of the plate ; 

 endopodite slightly curved, covered with numerous long 

 seta', terminating distally with two extra hmg ones, slightly 

 more than half the length of the exopodite, triangular in 

 sectiot), articulating at the base of a raised portion of the 

 basal |)late on the inner side. Telson (fig. 9) short and 

 ti iangular, terminating in a fine blunt point. 



L ngth 10 mm. 



Colour (in alcohol) : the mesosomatic segments are a 

 horny brown colour, with yellowish lateral plates, in the 

 midtlle of which is a patch of deep brown ; the metasoniatic 

 sciiuients are a uniform dark brown. 



