( 314 ) 



ventral of which is the longest. Besides these there is a fifth bristle placed 

 anteriorly of the fourth. The solitarj' bristle of the metasternnm (fig. 2, vit.st) is 

 short. The first abdominal tergite has one row of bristles, there being no additional 

 bristles in front of it (fig. 2, ab'). The seventh tergite bears a stont apical bristle, 

 which is not longer than the most ventral bristle of the same tergite. This stout 

 bristle has on each side a minute hair. The mid- and hindcoxae are much longer 

 than the}' are broad. The hindcoxa is pear-shaped (fig. 2), the hinder (or meral) 

 jjart becoming gradually (nut suddenly) narrower towards the apex. The comb 

 on the hindcoxa consists of from five to seven spines. Posteriorly at the apex 

 of the coxa there are two stout bristles of equal length. The hindfemur is not 

 angnlate beneath near the base. It bears on the outer side two subveutral bristles 

 near the apex, and on the inside a series of six or seven sublateral hairs. The 

 bristles of the tibiae and tarsi are short. The second segment of the midtarsns 

 is nearly twice the length of the first. The first segment of the hindtarsus is a 

 little over half the length of the hindtibia, and the third segment is longer than 

 the second. The longest apical spine of the second segment does not quite reach 

 to the apex of the third. The fourth segment is short and cnp-shaped, being 

 broader than it is long, if the narrow basal portion be neglected. The eighth sternite 

 of the male bears three bristles, placed one behind the other in the apical half. 

 The clasper (fig. 0) consists of two slender processes, bearing hairs at their apices. 

 The upper process («) is decidedly longer than the lower one (i). The ninth 

 sternite (fig. 6, st) is similar in shape to that of P. chephrinis. The internal plate 

 of the penis is broad from the base to the apex, the latter being obliquely rounded. 

 The eighth tergite of the female (fig. 8) bears two proximal bristles and a series 

 of about ten short hairs close to the edge and another series of smaller ones 

 at the edge. 



Length, r85 mm. 



Messrs. Erlanger and Neumann found si.xty-seven specimens (twenty-three c? S 

 and forty-four ? ?) of this species in 191)0 and lUOl near Harar. They were 

 collected from Procavia crlangeri, and jirobably also from Procacia brucei. 



Detailed List of this Collection of Fleas. 



1. Pulex regis spec, no v. 



Bate. 



December 2Gth, 1809. 



2. Pulex isidis sj)ec. no v. 

 November 1900. 



March 12th, lunO. 

 April ]4tli, 1901. 



)) 5J JJ 



3. Pulex irritans. 



1900. 



Host. 



Meriones rex. 

 jj J) 



Procacia crlangeri. 



Canis familiar is. 



