4 B. H. BUXTON 



vary gland in Tarantula such as is found in the scorpions and 

 the spiders. 



The Charontini, like Tarantula and Phrynicus, have a large 

 coxal gland with saccule and outlet on segment III, the laby- 

 rinth of which also possesses special secretory epithelium in its 

 middle portion; but the labyrinth of this large coxal gland does 

 not extend quite so far back as in Tarantula and Phrynicus. 



Diagram 1 Coxal glands of the Amblypygi. Fig. 1 Tarantulini and Phry- 

 nini. Saccule on segment III from which the labyrinth extends posteriorly to 

 segment VI, from which point it loops forward and runs as a single tubule to the 

 outlet behind appendage III. 



Fig. 2 Charontini. In addition to the large coxal gland on segment III 

 there is a small one, complete in itself, on segment V. S, saccule; CL, laby- 

 rinth of coxal gland; ET, exit tubule. 



On segment V there is a second, very much smaller gland, com- 

 plete in itself, with saccule, lab5a-inth and outlet behind ap- 

 pendage V, but the labyrinth possesses no secretory epithelium 

 (diagram 1, fig. 1). 



The presence of this small, apparently disappearing, coxal 

 gland indicates that the Charontini are more primitive than 

 Phrynicus, before which they are probably giving way. The 



