STEUCTURE OF EXCUETuRY ORGANS OE AMPHIOXUS. 501 



8. Lankester, E. Ray. — " Tlie Enterocoela and llie Coelomoccela," ' Treatise 



on Zoology,' pt. 2, 1900. 



9. Masterman, a. T. — "Ou the Diplocliorda," ' Quart. Jouru. Micr. Sci.,' 



vol. xl, 1897. 



10. Meisenheimer, J. — " Entwickl. von D reissensia poly niorplia, Pall," 



' Zeit. f. wiss. Zool.,' vol. Ixix, 1901. 



11. Shephard, J. — "On the Structure of the Vibratile Taj^s or Planie-cell 



in Rolilera," ' Proc. Roy. Soc. Victoria,' vol. xi, 1899. 



12. Wagener, R. — "Ueber den Bau der Actinotrocha branchiata," 



' Archiv f. Anat. and Phys.,' 1847. 



13. Weiss, E. — "Excretory Tubules in Aniphioxus lanceolatus," 'Quart. 



Journ. Micr, Sci.,' vol. xxxi, 1890. 



EXPLANATION OF PLATE 27, 



Illustrating Edwin S. Goodeich's paper " Ou the Structure 

 of the Excretory Organs of Amphioxus." 



Fig. 1. — Enlarged view of an excretory organ of Aniphioxus, drawn from 

 the living. 



Fig. 2. — Enlarged view of the terminal tuft of the nejjhridium of Phyllo- 

 doce Paretti, drawn from the living. 



Fig. 3. — A small portion of the excretory canal of a young Amphioxus, 

 with its solenocytes, from the living. Cam. J^ oil immersion, oc. 8. 



Figs. 4 and 5. — Senii-diagrammatic views of jjortions of the excretory 

 organs of Amphioxus and Phyllodoce Paretti, fro;ri living and preserved 

 specimens. 



