REPORT UPON TWO COLLECTIONS OF MYRIOPODA, 163 



bordel* is inferiorly liglitly concave ; the posterior angle nearly a right 

 anglS) the portion of the posterior border immediately above it lightly 

 emarginate ; a few obliquely longitudinal sulci on the surface of the 

 lateral portion. The rest of the segments with the posterior portion 

 a little higher than the anterior \ the anterior portion finely striolate 

 in front, and covered with a closely and finely reticulated pattern of 

 smooth low ridges behind ; the portion behind the transverse sulcus, 

 which on the posterior somites is altaost obsolete, is polished above, 

 but is tnore or leas longitudinally sulcate throughout ; below the 

 level of the pores the stria3 are close-set and clearly defined, above 

 the porO) however, they are more widely separated and less clearly 

 defined ; one sulcus is median. Anttl somite smooth, produced into a 

 long stout caudal process, the axis of which is directed slightly 

 upwards, forming an obtuse angle with the line of the back, and the 

 apex is neither up turned nor down turned, anal valves with margins 

 widely compressed. Pores conspicuous behind the transverse sulcus 

 and about in the middle of the side. Ventral grooves short. 



Legs tolerably long, with the fourth and fifth segments padded 

 beneath, and the others adorned with three or four hairs in a series. 

 Number of somites 67; length about 160 mm. 



Copulatort/ feet with anterior laminae very narrow and slender, widen- 

 ing distally, with its surface sub-costate ; the central, protrusible 

 portion consisting of an elongate, slender, cylindrical rod, pointed 

 at its distal end ; from the distal fourth of its length there springs 

 a posterior piece, which, slender at first^ raj)idly expands into a wide 

 lamina bearing distally on its external angle a backwardly directed,, 

 slightly curved, slender^pointed process, fringed beneath with 

 conspicuous hairs. 



Of this handsome species the British Museum has a single dried 

 specimen from Ceylon (Holds worth coll.). 



This species may be at once recognised by the form of the coUum 

 in the 6 , and by the straight, long, stout caudal process, 



■Spirostreptus insculpttis, sp. n. 



{n. i, fig. 8.) 



Colour (in alcohol), anterior half of somites deep reddish-cifiereous„ 

 posterior half deep blackish- grey, anterior and posterior borders of 

 coUum narrowly ferruginous, upper portion of head brunneo-fuscous, 



