1917 Fasten: on Decapoda 297 



8. DESCRIPTION OF PLATES 



The figures on plates 1 and 2 are drawings from dissections. Those 

 on plates 3-5 are microphtographs from sections taken by the author. 

 None of the photographs were retouched in any manner whatsoever. 



ABBREVIATIONS 



a=fhin outer coat of epithelium. 



b=layer of fibrous connective tissue. 



c::^circular layer of smooth muscle. 



d=longitudinal layer of smooth muscle. 



e=inner layer of glandular epithelium. 



f^interior secretion of vas deferens. 



f. l.=fifth pair of legs. 



g=spermatophores. 



h=cilia. 



i=convoluted, "typhlosole-like" portion of inner epithelium. 



int^intestine. 



j=outer investing coats of vas deferens. 



k^cuticula. 



1. o.=opening of vas deferens on left side. 



1. t.^^testis of left side. 



1. V. d.=vas deferens of left side. 



p=tunica propria. 



r. o.=opening of vas deferens on right side 



r. t.=testis of right side. 



r. V. d.=vas deferens of right side. 



s=spermatozoa. 



t:^=testis. 



V. d.=vas deferens. 



x=iinion of two lobes of testis. 



