Genera and Species of Scolopendrida?. 223 



pair) furnished with an infero-anterior spine ; in the first pair 

 of legs there is an additional spine above the normal one ; 

 proximal tarsal segment longer than the distal. 



Stigmata elongate, as in Cormocephalus. 



Length up to 50 millim. 



Locality Port Elizabeth (South Africa) ; a number of 

 specimens collected by Mr. II. A. Spencer, one sent to the 

 Museum by Mr. J. M. Leslie ; and also one ticketed merely 

 " S. Africa," from the collection of Dr. Quain. 



Pithopus, nom. nov. 



(nidos, a cask or jar, and ttovs, foot ; so called from the shape 

 of the segments of the anal legs.) 



Rhoda, Meinert, Trans. Am. Phil. Soc. 1886, p. 188, nom. praeocc. 

 (Rhode, Simon, Arachnida, 1882 ; Rhodea, Adams, Mollusca, 1857.) 



In its truncate anal pleura?, thick anal legs, and strong ser- 

 rate claw with which these limbs are armed, this genus 

 resembles Cupipes. It differs, however, from Cupipes in its 

 large elongate stigmata. Moreover, it may be recognized 

 from all the genera of Scolopendridee, which have the tarso- 

 metatarsus composed of two segments, in that the proximal 

 segment is shorter than the distal. In this respect the genus 

 appears to me to approach Theatops. 



Pithopus inermis, sp. n. (PI. V. figs. 2-2 d.) 



Body slender and almost parallel-sided. 



Colour ochraceous, anteriorly and posteriorly more or less 

 rufous, shining. 



Head-j)late convex, punctured, with a posterior transverse 

 arched sulcus and a median longitudinal sulcus in its hinder 

 half. 



Antennas attenuate, moderately long, composed of eighteen 

 segments, whereof the basal six are bare and the rest pubes- 

 cent. 



Maxillary sternite punctured, marked in front with a trans- 

 verse irregularly branched sulcus, from the middle point of 

 which there runs forward a median sulcus, which soon bifur- 

 cates and meets on each side the sulcus marking the prosternal 

 plate ; prosternal plates in contact, quadrate, longer than 

 wide, each bearing three teeth, whereof the external is 

 separate and distinct and the two internal fused and indistinct : 

 basal tooth well developed, on a level with the prosternal 

 plates, subdentate. 



Tergites. — The first not sulcate, the second with two feeble 



