6 The Irish Naturalist. January, 



Ceylon, and the Barbadoes. The specimen was sent to 

 Professor von Graff, but unfortunately it was lost in transit. 

 During the following October another specimen was found 

 in the same })lace. It was sent to von Graff, who confirmed 

 the identification. Since then, several other specimens have 

 been found, and the species seems to be well established in 

 Glasnevin. It is distinguished by the following external 

 characters : — It is up to i6o mm. long, and 2-4 mm. wide. 

 These dimensions depend on the state of contraction, which 

 varies within wide limits. The width of the body gradually 

 diminishes towards the head and tail. Near the tip of the 

 head are two small black eyes. The back is marked by 

 six longitudinal lines, the middle pair being dark brown, 

 the others black. The ground colour is greyish yellow. 

 The lines of the central pair are close together, and compara- 

 tively inconspicuous, and do not reach the head. On each 

 side of these, there is a broad black line, running the whole 

 length of the body. Their outlines become diffuse in front, 

 where they fuse together. Outside these, there is a third 

 pair of lines which is not quite so conspicuous. Though 

 there is considerable variation in detail, this relationship of 

 the longitudinal lines is fairly constant. The ventral 

 surface is marked by a broad longitudinal grey stripe, 

 which constitutes the " sole " of the body, on which the 

 animal crawls. 



The wide distribution of this species, together with its 

 presence in the Botanic Gardens at Dublin, would show 

 that it is easily carried about alive, probably in the roots of 

 plants, resembling Placocephalus kewense in this respect. 



PROSTOMA CLEPSINOIDES. Ant. Duges. 



1904. O. Biirger : Das Tierreich, 20 Lief., p. 68. 



The occurrence of this fresh -water Ncmertine in the 

 Grand Canal at Clondalkin, Co. Dublin, in October, 1908, 

 has been already recorded V In November of the same 

 year, it was also found in the Royal Canal, near Dublin. 



' Nature, vol. Ixxix., p. 8. 1908. 



