Coxal glands of the Arachnids. 277 



Fig. 36. Daesina (sp.?). Transverse. 300:1. 



To show the abrupt change from the labyrinth sac (SL) with 

 its columnar secretory epithelium, to the excretory cells of the 

 labyrinth tubule with striated border on which the minute 

 nuclei rest. 



Fig. 36a. Paragakodes scalaris. Transverse. 300:1. 



Change from labyrinth sac to striated tubules in another 

 specimen. 



Plate 30. 



Fig. 37. Paragakodes scalaris. Frontal. 100:1. 



Labyrinth sac {SL) to show the pouching. The labyrinth 

 sac is lined with tall columnar epithelium, but there are no 

 products of secretion in the lumen. 

 Fig. 37a. Paragakodes harharus. Frontal. 100 : 1. 



Labyrinth sac {SL) to show the pouching. The lumen of 

 the sac is filled with products of secretion, and the cells are 

 worn down almost to the nuclei. At {CT) is the entrance of 

 the collecting tubule. 



Plate 31. 



Fig. 38. Paragakodes harharus. Oblique. 250 : 1. 



Exit tubule [ET) , with muscular walls, running anteriorly 

 just below the integument of appendage II, and leading to the 

 nozzle {NZ), which opens into {LP) the commencement of the 

 sheath. It seems as if the secretory products had just been 

 squirted out; some traces {Sp.?) still remaining in the expanded 

 orifice of the nozzle. 



Fig. 38a. Paragakodes harharus. Sagittal. 250:1. 



View similar to that of 38, in another specimen. The nozzle 

 is here cut through a little to one side of its orifice. 



Plate 32. 



Fig. 38b. Solpiiga flavescens. Frontal. 250 : 1. 



View similar to that of 38 and 38a, but showing a dilation 

 the exit tubule. 



Fig. 39. Oakodes {? Oihoes). Frontal. 100:1. 



(7?) is near the opening of the rostrum to the exterior. 

 {KS) is the sucking chamber of the rostrum, passing posteriorly 

 into the oesophagus which lies between the two lobes of the 

 brain {BR). Above, on the right, the position of the nozzle 

 (V;t, in brackets) is indicated, anterior to which is the sheath {LP). 



