302 Puget Sound Marine Sta. Pub. Vol. 1, No. 26 



PLATE 70 



Microphotographs 



Fig. 9. Cross section of vas deferens of Lopholithodes mandtti, show- 

 ing outer coats (j), and inner convoluted membranes (f) with suspended 

 spermatophores (g). X 18. 



Fig. 10. Longitudinal section of vas deferens of Lopholithodes mand- 

 tii showing arrangement of parts. X 18. 



Fig. 11. Portion of cross-section of vas deferens of Lopholithodes 

 mandtii showing structure in greater detail. The first two coats, the se- 

 rosa (a) and the sub-serosa (b), are missing in the section. X US. 



Fig. 12. Cross section of vas deferens of Pagurus setosus showing 

 outer coats (j) and inner membranous sheaths (f) with spermatophores 

 (g). X 18. 



Fig. 13. Longitudinal section of vas deferens of Pagurus setosus 

 showing arrangement of parts. X 18. 



Fig. l-i. Portion of cross-section of vas deferens of Pagurus setosus 

 in region of concentrated columnar epithelium. X 113. 



Fig. 15. Enlarged portion of cross section of vas deferens of Pagurus 

 setosus in region of concentrated epithelium to show the arrangement of 

 the five layers (a, b, c, d, e). Cilia (h) can also be seen. X 280. 



Fig. 16. Enlarged portion of cross-section of vas deferens of Pa- 

 gurus setosus in region of cuboidal epithelium to show the five layers (a, 

 b, c, d, e). X 320. 



Fig. 17. Cross-section of vas deferens of Lophopanopeus bellus, 

 proximal end. X 52. 



Fig. 18. Cross section of vas deferens of Lophopanopeus bellus, dis- 

 tal end. X 52. 



