Coxal glands of the Aracbnids. 279 



Fig. 42a. Paragaleodes harhariis. Frontal. 250 : 1 . 



Taken from the same specimen as 42, two sections further on, 

 showiüg the bulge. more highly magnified, protruding into the 

 lumen of the saccule. 



Plate 36. 



Fig. 43. Solpuga flavescens. Transverse. 100 : 1, 



Taken near the posterior end of the labyrinth coils, about 

 opposite appendage V, showing the complicated coils of the 

 tnbules, some of which belong to the right side and some to the 

 left side, C is the coecum which runs from the intestine (INI) 

 into appendage V (H) Heart. (N) Ventral nerves. 



Fig. 44. Eremobates (Ale. sp, M.). Transverse. 100 : 1. 



R is the rostrum with its sucking chamber (KS), ou the left 

 of which is the coxal Joint of appendage II. On the dorsal 

 aspect of appendage II is the sheath (LIi) , cut transversely 

 just anterior to the nozzle , with its side outlet (SO) turned 

 away from the rostrum. 



Just in front of this point the sheath closes up again, and 

 passes anteriorly as in photographs 40 and 40a, 



I is the chelicera which works above the coxa of appendage II. 



Plate 37. 



Fig. 45. OaJeodes (? Othoes). Frontal. 250 : 1 . 



A section showing the collecting tubule (CT) which is here 

 lined with columnar epithelium resembling that of the labyrinth 

 sac, so that the collecting tubule appears lost as a separate entity. 

 Its Position however, between two pouches of the labyrinth sac 

 is the same as usual. In this specimen the columnar cells lining 

 the labyrinth sac are much more regulär than is usual. In the 

 excretory part of the labyrinth (GL), the columnar character of 

 the cells is maintained, but the nuclei are raised and rest upon 

 the striated base. 



Fig. 46. A Compound of photos 40 and 42, Frontal. 40 : 1. 



The photographs are taken 12 sections apart. Each section 

 12 ^ thick. The two sections taken together show the relations of 

 the coxal glands on either side to each other and to the surrounding 

 tissues. On one side is seen the open collecting tubule, but on 

 the other side the tubule is clased by a bulge from the labyrinth 

 sac. For the finer details see photos 41, 41a, 42, 42a. 

 Zool. Jahrb., Supplement XIV. 19 



