488 Insectct Myriapoda found in Bemichhire. 



pink and mottled with dots of the same colour as the dorsal 

 lines : head smooth, clouded, the interior margin brown and 

 ciliate : eyes black, sometimes encircled with a pale halo : 

 antennae dusky brown, hispid, the basal joint very short, the 

 second longest, third rather longer than the fourth and fifth, 

 which are equal, penultimate half as long as the fifth, and re- 

 ceiving the minute terminal one, which is truncate, all the 

 joints thickened outwards : post-occipital segment smooth, 

 black or piceous with a pale yellow margin : segments more 

 than 50, longitudinally striate, the striae impressed, very 

 slightly waved, often forked, interrupted by the smooth inter- 

 spaces : lateral pores small, dark : anal segment mucronate, 

 hairy at the point, the valves black, roughish and hairy : legs 

 clear yellowish-brown. — Some specimens are of a bright red- 

 dish-brown colour with straw-yellow legs, but in the dorsal 

 fasciae we have a constant character which readily dis- 

 tinguishes it under every variation. — From the thinness of 

 the margin of the segments, they appear, in certain lights, to 

 be bounded by a golden-yellow line. When bruised in a 

 fresh state, the body exhales an acrid spirituous fluid, which, 

 as Dr. Lister expresses it, "strikes the nostrils exceeding 

 fiercely." 



2. I. niger. Uniform glossy black when living, tinted with brown on the 

 sides ; anal segment mucronate, the mucro conical, acute, (fig. 43. b) — 

 Leach, in Edin. Encycl., vii. 407. ; Zool. Misc., 3. 34. ; Trans. Linn. Soc, 

 xi. 378. I. terrestria Mull., Zool. Dan., pr. 201. No. 2421. ; Turt. 

 Gmel., iii. 778. 



Hab. Under stones and the bark of decayed trees ; common. 



This equals the preceding in size, and can scarcely be dis- 

 tinguished from it otherwise than by the absence 

 43 ^_^ of the coloured dorsal fasciae. Head smooth, 

 C7? Q^7 clouded, pale brown anteriorly, and fringed with 

 \iJ // short stifFhairs: eyes black: antennae inserted be- 

 fore the eyes, fuscous, hispid : post-occipital seg- 

 ment larger, smooth, fuscous, often clouded, the marginal line 

 usually yellow : segments 50, glossy-black, piceous or tinged 

 with brown underneath; longitudinally striate and marked 

 with a small pore on each side, and frequently with a 

 few hairs on the posterior margin : interspaces black, 

 smooth : anal segment mucronate, the mucro conical acute, 

 the valves black or brown, hairy : feet clear white or yellow- 

 ish white, hairy on the inner aspect. There is a variety, or 

 immature state, which is slenderer in proportion to its length 

 than is usual ; and the valves of the anal segment in this 

 variety are more strongly hispid. The legs are sometimes 

 very dusky. After death, as Dr. Leach correctly remarks, 

 this species " generally changes to blue, having the margins 



