10 



B. H. BUXTON 



of Palmi in Calabria about sixty specimens of Koenenia mirabi- 

 lis, almost all of which were fixed and sectioned for microscopic 

 study. In addition I was able to examine five specimens which 

 had been sectioned and described by Mr. Borner some years pre- 

 viously. The coxal gland had aheady been observed by Grassi, 

 the original discoverer of Koenenia, ('85), and Borner ('04) de- 

 scribed it as a single tube running anterior^ from the second 



Diagram 3 Coxal gland of group II. Fig. 1 Coxal gland of the Solifugae. 

 Saccule on segment II opening into the long labyrinth sac. From the latter 

 there is an opening into the true labyrinth, running back and then forward again 

 to the outlet on appendage II. In the neighborhood of the saccule the labj^rinth 

 sac is pouched and the labyrinth coils a little. For the sake of clearness these 

 pouches and coils are omitted in the diagram. 



Fig. 2 Coxal gland of Koenenia. Saccule on segment II opening into the 

 long labyrinth sac. The true labyrinth is represented only by the vesicle, the 

 outlet from which is on appendage II. S, saccule; CSL, labyrinth sac; CL, laby- 

 rinth; ET, exit tubule; V, vesicle. 



abdominal (genital) segment to an outlet just posterior to ap- 

 pendage II. This description is correct so far as it goes, but 

 Borner overlooked the saccule and did not appreciate the sig- 

 nificance of the tube being single and not double. He was not 

 acquainted with the anatomy of the Solifugae and his efforts 

 were chiefly directed towards grouping Koenenia with the 

 Pedipalps. 



