74 ^KV. J. E. HULL ON 



PACHYLAELAPS, Berl. 



Type : pectinifer, Cann. 



Process of epistome distinctive, more or less Y-shaped 

 with a multidentate combhl<:e terminal margin. 

 Body oblong with parallel sides ; dorsal shield 

 smooth, undivided. Tarsi (at least of legs ii) with" 

 one or more conical thick spines near the apex. 

 Anal scutum of ? separate. 



1. Teeth of epistomal comb contiguous acuminate ... longisetis. 



,, ,, basally free, more or less 



bifurcate ... ... ... ... ... ... 2 



2. Peritreme undulate ... ... ... ... ... fossorius. 



,, straight ... ... ... ... ... 3 



3. Teeth of epistome eight uniformly bifurcate ... littoralis. 



,, fewer ... ... ... ... pectUiifer . 



123. Pachylaelaps pectinifer, Cann. <? 700/x, $ 8oo/x. 67. 



Anal scutum ($) discoidal but wider than long. 



Leicestershire, Flintshire. Ireland (a single female — 

 var. inagims, Halbert). 



124. Pachylaelaps littoralis, Halb. ^819/A. 



Ireland, maritime, 



125. Pachylaelaps longisetis, Halb. $ 793 ^.. 



Peritreme undulate. Anal scutum (?) longer than 



wide. 

 Ireland, under bark. 



126. Pachylaelaps fossorius, sp. nov. $ 680 /a. 



Broad oblong, slightly wider behind. 



Epistome terminating in a V-shaped pecten ; the 

 three central teeth broad bifid from the middle. 

 Margin of epistome diverging immediately from 

 the base of the pecten {i.e., there is no long * neck ') 

 and finely denticulate. 



Ventral shields reticulate with large mesh ; sternal 

 with eight lateral setre, the front pair longer than 

 the rest \ genital more or less hexagonal with a 



