250 



B. H. Buxton, 



at their distal ends attach themselves to anything which crosses 

 their path; walls of tracheae {TR), tubules of the coxal gland, or 

 to other muscle bundles. 



Diagram C. 



Oaleodes [^ Othoes). Frontal view. 



Shows in a general way the disposition of the coxal glands. 



The saccule (<S) and collecting tubule passing into the labyrinth sac {S.L) 

 (only partially drawn; the posterior extension is omitted) which changes to the 

 coiled tubule of the labyrinth {CL). The tubule [CL) runs posteriorly and then 

 anteriorly again to the exit tubule {ET), terminating in the nozzle (NZ). In 

 this species there is a definite tubule beyond che nozzle with its side outlet {SO) 

 and final outlet {FO) not far from the opening of the rostrum to the exterior. 



In the diagram the tubule has been drawn pointing a little too much inwards. 

 It_ should have been drawn more obliquely. (Compare with photo 8.) The rostrum (E) 

 ■with its sucking chamber lies in front, and the sucking chamber passes posteriorly 

 into the narrow oesophagus between the two lobes of the brain (dotted ovals). 

 The straight dotted line above indicates approximately the level at which the 

 chelicerae project from the body above appendage II. 



