96 CALIFORNIA ACADEMY OF SCIENCES. 



PLATE XXXII. 



PHffiNICODKILUS TASTE. 



12. Ouc of the ijosterior nepbridia more highly magnitied, to show the cour.se of the cauals. 



13. Phasnicodrilns taste, natural size, the worm having first been killed gradually with increasing strength of 



alcohol. Largest specimen. 



14. 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. bl. small vessels iu the vascular 

 layer of the alimentary canal, dv. diverticulum, hi. v. large blood vessel penetrating the diverticulum 

 from the exterior, ep. epithelial lining of the intestine, m. I. muscular layer of the intestine. 



1.1. Section elosely 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 iu the former figure. 



16A. 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. I. hi. v. very large vessel, hi. c. small 

 vessels in the wall of the diverticulum. 



16B. A section anterior to the former, showing the beginning of the subdivision of the diverticulum. 



16C. .\ section next anterior to the former, showing the diverticulum two chambered. 



16D. A section near the center of the diverticulum, showing six interior chambered and a multitude of blond 

 vessels. 



16E. A part of diverticulum more highly magnified, showing nuclei and striated cycloplasm. 



16F. Section of alimentary canal. 



