REPORT UPON TWO COLLECTIONS OF MYRIOPODA. 159 



Somites; collum smooth and shining, much narrowed laterally, 



with anterior and posterior borders of the lateral portion concave, 



with squared angles, the inferior and the anterior margin as high as 



the eye defined by a sulcus which widens below, for the rest entirely 



without grooves and ridges; the rest of the segments (except the 



anal) with a strong transverse median circular sulcus, the anterior 



portion of each nearly smooth, only very feebly concentrically striate, 



the posterior portion smooth above, but very finely striolate, the 



lower portion longitudinally striate above the legs to about half the 



distance between the legs and pores ; pores situated about the middle 



of the body immediately behind the sulcus, which is at this point 



lightly sinuate; ventral grooves small, triangular, about half the 



width of the sternal piece ; anal somite convex above from before 



backwards and from side to side, the process projecting over the 



valves, slender, short and upcurled apioally, finely and closely 



punctured, the valves convex from above downwards and from before 



backwards, the margins distinctly compressed, but not defined by a 



strong groove, the sternite with lightly convex hinder border. 



Legs with one strong spine above the terminal claw ; not hairy above. 



Number of segments 79 ; length about 250 mm. 



A single $ specimen sent by Mr. Thurston from Kortallum. I 



have very little doubt that I have correctly identified this specimen, 



although Gervais' description is not so exact as one could wish. 



Gervais' type was taken on the coast of Malabar. 



Spirostreptus niffrolabiatus, Newport. 

 (PI. i, fig. 7 ; pi. ii, fig. 5.) 

 Newport, Ann. Mag. Nat. Hist., xiii, p. 269 (1844). 

 This species is undoubtedly closely related to the preceding, the 

 colour, sculpturing, form of collum and of anal somite being very 

 similar in the two. It is, however, much smaller, measuring only 

 about 134 mm. in length, has only 57 or 59 segments, and in the $ 

 the face is strongly striate and rugulose. Moveover the lateral por- 

 tions of the collum are less slender, the anterior angle is rounder, and 

 the posterior a little more obtuse. 



In the i the collum is of the same form as in the $ . In the 

 copulatory foot the anterior piece of each half gradually widens from 

 above downwards, ending in two processes below, the external of these 



