52 



WILLIAAI F. ALLEN 



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8. Diagrammatic drawing showing the distribution of the caudal and the minor 

 caudal arteries as found in the tail of a large Scorpienichthj's viewed from the left 

 side. 



9. Ventral view of the ha'inal canal of a largo Scor])a'nichthys; the body muscu- 

 lature and the haemal spines being completely removed. Designed to show the 

 relation of the neural arteries to the neural veins and to the corresponding hajmal 

 vessels, and also the dorsal intersegmental vessels that liave both dorsal and lateral 

 branches to those that have only lateral branches. The vertebrae are numbered from 

 caudad to cephalad. XI. Reduced | 



10. Deeper dissection of the same specimen as fig. 9, the caudal vein and its 

 branches being entirely removed . It shows the relation of the minor caudal artery 

 to the caudal artery and the branching of each, together with a little of the ha>mal 

 lymphatic or subcutaneous system. XI. Reduced ^ 



