BY J. J. FLETCHER. 1001 



Set?e fewer, larger and more conspicuous, the setiferous ridges 

 also more conspicuous, in front of the clitellum ; segment ii (the 

 first setigerous one) with probably normally about 18 setae [in the 

 specimen in which the setse are most complete there are 9 on one 

 side and 8 on the other ; most of the specimens have 16 ; one 

 shows only 6] ; segments iii and iv with about 26 ; v-xv with 

 about 28 (in one case segment vii has 15 on one side and 14 on 

 the other), from xix with 32-36, the posterior segments — except 

 the last few — with about 40-44 ; very frequently owing to break- 

 ages or other causes only fewer than the numbers specified can be 

 counted on a given segment. A median dorsal interval about 

 2-2| times, and a median ventral interval about thrice the width 

 of an ordinary interval between two setse, devoid of setee. 



Clitellum (in two specimens) comprisiug four segments, xiv.- 



XVII. 



Male pores on papillae, about corresponding with the intervals 

 between th3 first and second setfe ; adjacent to and dorsad of each 

 pore is an additional slight swelling or papilla. The posterior § 

 of the ventral surface of xvii and the anterior | of xix modified, 

 in each case with an indistinct pair of papillse much as in P. 

 austrina : in specimens with girdles the ventral surface of seg- 

 ments X and XI modified much as in P. austrina but the swellings 

 are not pitted, and the posterior one is not subdivided ; in one 

 specimen on x.-xii are three pairs of swellings extending antero- 

 posteriorly across the segment, and from side to side from about 

 the first to the third set?e, with a little pit in front and one 

 behind the setigerous ridge. Oviduct pores two, in front and 

 ventrad of the innermost setee ; spermathecal pores three pairs, 

 intersegmental after vi, nearly opposite or a little dorsad of the first 

 setse. 



Dorsal pores commence after segment iv (sometimes apparently 

 a rudimentary one after iii). Nephridiopores not visible. 



Alimentary canal : calciferous pouches in x-xiii (almost like a 

 smaller pair in xiv). 



Genitalia as in P. austrina, that is to say two pairs of testes 

 and ciliated rosettes in x and xi, two pairs of vesiculse seminales 



