96 
15. 
16A. 
16B. 
160. 
16D. 
161K. 
16F. 
CALIFORNIA ACADEMY OF SCIENCES, 
PLATE XXXII. 
PH@NICODRILUS TASTE. 
One of the posterior nephridia more highly magnified, to show the course of the canals. 
Pheenicodrilus taste, natural size, the worm having first been killed gradually with increasing strength of 
alcohol. Largest specimen. 
Section of the intestine at the point of connection with the diverticula, in order to show the arrangement 
of the blood vessels and the subdivisions of the diverticula. This figure is taken at the junction and shows 
the diverticulum as one chambered, and with a large blood vessel penetrating the diverticulum from the 
outside. This blood vessel comes from the dorsal vessel. This and the following five figures are outline 
drawings from slides, but the details of less importance are not filled in. 6/. small vessels in the vascular 
layer of the alimentary canal. dv. diverticulum. Ol. v. large blood vessel penetrating the diverticulum 
from the exterior. ep. epithelial lining of the intestine. m./. muscular layer of the intestine. 
Section closely following, or anterior to the former, showing the diverticulum as one chambered and with a 
division of the blood vessels into smaller ones. Letters indicate the same as in the former figure. 
A section of one of the diverticula a little anterior to the former, the organ is yet one chambered, and a large 
blood vessel is seen on the left side or the side nearest the intestine. J. bl. v. very large vessel. b/. v. small 
vessels in the wall of the diverticulum. 
A section anterior to the former, showing the beginning of the subdivision of the diverticulum. 
A section next anterior to the former, showing the diverticulum two chambered. 
A section near the center of the diverticulum, showing six interior chambered and a multitude of blood 
vessels. 
A part of diverticulum more highly magnitied, showing nuclei and striated cycloplasm. 
Section of alimentary canal. 
