Explanation of Plates VII-XVI. 



The accompanying figures of genitalia are for the most part drawn 

 as viewed from the side. In cases where they appear symmetrical 

 aboiit a central line they are viewed either from above or below. 

 In many cases, as on Plates XI aivl XII, the view is from above, 

 with the uncus cut away in order to give an uninterrupted view of 

 the structure of the claspers. In almost every case the penis has 

 been removed and drawn separately. 

 The following explanations may be noted : — 



PI. VII. lie the ventral abdominal plate or velum. Figs. 5, 7, 

 8, lib, 17, are viewed from below. 



PI. VIII. Figs. 1, 12, 13 viewed from above, Figs. 10 and 11 

 from below. Figs. 2, 3, 4, 5 appear to show considerable diffeionces, 

 but examination of a series of preparations shows such differences to 

 be inconstant. The same applies to Figs. 6 and 7. 



PI. IX. Figs. 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 16 viewed from above 

 (uncus removed in/. 9). Fig. 6 is the dorsal abdominal plate spread 

 out and viewed from beneath. Figs. 7 and 13 are viewed from 

 below. Fig. 15 is the dorsal abdominal plate viewed posteriorly to 

 show the peculiar manner in which it is folded. Fig. 18 is the 

 dorsal plate viewed from below. 



PI. X. Figs. 4, 5, 6, 10, 11, 12, 14 are the dorsal plates viewed 

 from below. Figs. 15 and 16 are viewed from above with the uncus 

 removed. 



PI. XI. All viewed from above with the uncus removed. 



PI. XII. Ditto. 



PI. XIII. Figs. 3, 22, 23, 24, ditto. 



PI. XIV. Figs. 2, 3, 7, 8, 9, 10, 11, 12, 13, ditto. Fig. 14 is a 

 side view of the genital armature with the dorsal and ventral plates 

 in situ. Fig. 14a is the dorsal plate viewed from below. Fig. 14c the 

 ventral plate viewed from above, and Fig. 146 is the armature alone 

 viewed from above. 



PI. XV. Figs. 4, 13, 14, 15 are viewed from above with the 

 uncus removed. Figs. 16-28 are the ventral chitinous plates which 

 surround the orifice of the bursa copulatrix, all showing the ventral 

 side. 



