new Species of Exotic Tulidae. 253 



process, ■\vliicli is wide at the base and narrowed towards the 

 apex ; valves moderately convex, with their mar<2fin3 deeply 

 compressed above, less deeply below ; slernite distinct, tri- 

 angular. 



Legs very long, each segment furnished with a single seta 

 beneath, the distal segment padded in front below. 



Copidatory feet as in fig. 5 h. 



Number of somites 48. 



Length about 80 millim,, width almost 5. 



Loc. N.W. Borneo [R. Eoerett). A second example 

 (Borneo, Lords of the Admiralty) has 54 somites and measures 

 about 115 millim. 



In its slender body, long legs, and produced eollum this 

 species superficially resembles a Spirostreptus. It is, hov/- 

 ever, unquestionably a Spirobolus, and appears to be a well- 

 marked species, belonging to the same category as Sp. phranus 

 of Karsch and rufo-maryinatus of Tomosvary. 



Spirobolus caledonicus, sp. n. (PI. XVI. figs. 6-6 b.) 



^ ? . Colour fusco-olivaceous, with the hinder borders of 

 the tergites ferruginous or flavous ,• legs rarely narrowly 

 testacco-annulate, usually black. 



i/eat/ convex, smooth and shining, the median sulcus widely 

 interrupted in the middle; on each side about five labral 

 pores, of which the three internal are set close together. Eyes 

 composed of about twenty ocelli set in six transverse series, 

 ■with an acute inner angle, separated by a space equal to about 

 twice a diameter. Antennce a little shorter tlian the head, 

 scarcely reaching to the hinder border of the first tergite. 



First tergite smooth above, narrowed laterally, and extend- 

 ing inferiorly as low as the inferior portion of the second, the 

 angle acute but rounded, the anterior edge lightly sinuate but 

 scarcely emarginate, with scarcely a vestige of sulcus. The 

 rest of the tergites without scobina, smooth and polished 

 behind, the anterior (covered) portion being minutely striolate, 

 and the lateral portion just above the base of the legs finely 

 striate ; the transverse sulcus almost obsolete, the pores very 

 minute, situated above the middle of the side and just upon 

 the feeble transverse sulcus. Sterna striate. 



Anal tergite smooth, its posterior border produced into an 

 angle which just overlaps the top of the valves ; the valves 

 with their borders lightly compressed or convex and without a 

 trace of compression ; sternite with subcircular hinder border. 



Legs with a seta on the lower surface of each segment, 

 male without tarsal pads, the coxeb of the third to fifth pairs 

 a little enlarged. 



Copulatury feet as in fig. 6 J. 



Number of somites 42 (40—44). 



