ARACHNID A AND MYRIOPODA. 181 



Measurement in millimetres. Length of cephalothorax 9, 

 width 6, width of cephalic portion 5 ; length of abdomen 12, 

 width 8-5 ; length of anterior leg 46, of posterior leg 37. 



Two dried female examples. 



This species is closely related to N. annulata of Thorell ; 

 but of this last-named form I have only seen a very brief 

 description. (R. /. P.) 



MYRIOPODA. 



BY R. INNES POCOCK, Zool. Dept., Brit. Mus. 



DIPLOPODA. 



Fam. GLOMERID^:. 



Sph&rotherium obtusum, C. Koch. Durban, NataL 



Fam. 

 Spirostreptus meinerti, Porath. Pretoria. 



Spirostreptus meinerti, Porath, (Efv.Vet.-Akad. Forhand. 1872, no. 5, p. 37. 



This species was described originally from Caffraria. Mr. 

 Distant obtained a single female specimen. 



Spirostreptus transvaalicus, sp. n. Pretoria. 



$ . Colour : head piceous, labral region obscurely ferrugi- 

 nous ; antennae fuscous ; legs deep ochraceous ; somites polished 

 black behind, pale anteriorly. Head smooth above, with a feeble 

 vertical sulcus, strongly rugose with striae and punctures below; 

 with 6 or 7 punctures above the angular labral excision. 

 Antenna slender, longer than the head by the apical segment ; 

 the second segment the longest, the third, fourth, and fifth 

 subequal in length. Eyes nearly twice as wide as long, nar- 

 rowed internally, and separated by a space which is a little 

 greater than a diameter, composed of about 80 ocelli arranged 

 in about 13 vertically oblique series. The process on the 

 mandible subacute. 



The first tergite smooth above, the lateral portion marked 

 with two complete and several short grooves; other grooves 



