no. 1842. THE HOTHOUSE MILLIPED AS A NEW GENUS— COOK. 629 



auriculate rims; legs of males tuberculate on the lower surfaces of 

 the last two joints; gonopods with second joint robust, ending in 

 four strongly curved simple prongs. 



Description. — Body small and depressed, oblong, slender, over 

 eight times as long as wide. 



Head strongly convex, prominent; vertex evenly rounded, smooth, 

 with a deep median furrow to near the level of the antennae; a few 

 setiferous punctations on each side of the furrow; hirsute between and 

 below the antennas, also punctate and transversely rugulose ; labrum 

 with three distinct teeth in a shallow emargination, bordered by two 

 regular rows of setiferous punctations. 



Antennas inserted low down, separated by only about the width 

 of one of the sockets; rather slender filiform, or the terminal joints 

 slightly thicker, joints 2-6 nearly equal in length. 



First segment somewhat wider than the head, transversely oblong, 

 over twice as broad as long, anterior and posterior corners rounded, 

 especially the former; anterior margin with a fine raised rim, broader 

 and more prominent on the sides ; surface evenly convex, with a trans- 

 verse row of ten setiferous punctations near the anterior margin and 

 a second row of two punctations a little behind the middle. Lateral 

 punctations of anterior row mounted on the raised margin. 



Segments 2 and 3 much shorter than the others, only about half 

 as long as segment 1 ; lateral carinas of segment 2 depressed below the 

 level of the others and prolonged in front under the posterior corners 

 of segment 1 . Segment 4 intermediate in length between 3 and 5 and 

 with a transverse dorsal impression wanting on segments 2 and 3. 



Subsequent segments with dorsal surface nearly smooth, somewhat 

 rugulose and very minutely striolate longitudinally, under sufficient 

 magnification; marked with a slight median impression and a deep 

 transverse furrow across the middle of the posterior subsegments. 

 Each segment with a transverse row of six bristles near the anterior 

 margin, the lateral pair of bristles on the raised rims of the carinas. 



Lateral carinas nearly horizontal, rather narrow, less than one- 

 fourth as wide as the body cavity, with distinct raised margins; 

 anterior corners rounded, the posterior nearly a right angle on 

 anterior segments, becoming more produced and somewhat spini- 

 form on posterior segments; lateral edge of carinas nearly straight, 

 but abruptly narrowed behind a setiferous tubercle near the anterior 

 corner. 



Repugnatorial pores inserted in small lateral excavations of seg- 

 ments, 5, 7, 9, 10, 12, 13, 15-19; margins of poriferous carinas some- 

 what thickened, especially underneath the pores, but the pores not 

 indicated from above, except that the lateral margin is usually dis- 

 tinctly sinuate above the pore. 



