602 EXPLANATION OF THE PLATES. 
FIG. 
12. Anal portion of the interior of the female butterfly. 
a. Ovaries. 6, Oviduct. c. Colleterium or varnish 
secretor. d. Spermatheca or sperm receptacle. e. Part 
of the spinal chord. f. Rectum. g. A secretory organ 
filled with a thick white fluid, which is supposed to 
lubricate the passage. Vou. IV. p. 126. 
