82 ME. SWALE VINCENT ON THE 



PLATE IX. 



Fig. 1. Ventral view of the kidney, suprarenals, and interrenal of CImncpra monstrosa, 

 showing the smooth, oval, anterior pair of suprarenal bodies. X 1- 



Fig. 2. Dissection of Scyllium canicula (young female specimen) giving a ventral view 

 of suprarenals and interrenal. The parovarium has been dissected away. 

 This drawing may be taken as a typical representation of these bodies in 

 Elasmobranchs. The connections with the sympathetic are indicated to 

 some extent in the anterior part of the figure. The suprarenals were 

 displayed by Semper's chromic acid method. X h. 



Fig. 2 A. From the same preparation as the last. First three suprarenals of each 

 side. X 2. 



Fig. 3. Suprarenals of Scyllium canicula brought out by Chevrel's osmic acid method. 

 Their irregular outline is well shown, and many of the sympathetic fibrils 

 are stained black. X 1- 



Fig. 4. Ventral view of kidneys, suprarenals, and interrenal of Scyllium catulus. 

 This drawing shows fairly well the relations to the sympathetic. There is a 

 large plexus anterior to and outside the axillary hearts, with occasional 

 ganglia. X \- 



PLATE X. 



Fig. 5. Suprarenals, &c., of Acanthias vulgaris, shows sympathetic relations in anterior 

 part. The interrenal is not quite in the middle line, but is laid on the 

 surface of the left kidney. X 1. 



Fig. 6. Ventral view of kidneys, t&c, of Raja latis. This drawing represents a not 

 unusual condition in the Rays, in which there is a bridge-like communica- 

 tion between the interrenals of the two sides. The sympathetic is shown to 

 some extent about the middle of the left kidney. X 1. 



Fig. 7. Same view in Moja maculata. The anterior separated portions of the inter- 

 renals show processes or claws on their outer sides. X 1. 



Fig. 8. Ventral view of kidney and suprarenals of Acipenser sturio. Part of the 

 kidney-substance has been dissected away so as to display the suprarenal 

 bodies distributed throughout the organ. X i^. 



Fig. 9. Ventral view of kidneys and suprarenal of Orthagoriscus mola. The kidneys 

 are a very peculiar shape. There is one suprarenal attached by fibrous 

 bands behind the right kidney. X 4- 



Fig. 10. Kidney and suprarenals of Conger conger, suprarenals on ventral surface of 

 kidney. X i- 



Fig. 11. Clupea harengus, suprarenals on spinal surface of kidney. X 1. 



