PLATE 4 
EXPLANATION OF FIGURES 
10 Jaws and buceal membrane of afemale squid, with the outer membrane (bmo) 
pulled ventrally to expose the sperm receptacle (the opening of which is shown at 
sro) and the adjacent depression (d). Several sperm reservoirs (s), ejaculated from 
spermatophores, are shown attached in the depression. Magnified about 7 
diameters. 
11 Section of the outer buccal membrane taken through the sperm receptacle 
(sr). This was taken from an animal shortly after the sperm reservoirs (s) had 
been attached and shows sperm in transit from reservoirs to receptacle. Magni- 
fied about 22 diameters. 
12 Section through the epithelium and secretion lining the depression in which 
sperm reservoirs are attached. Magnified about 300 diameters. 
13. Section through an alveolus of a sperm receptacle. The clear spaces in the 
epithelium are goblet cells. Traces of the flagella on the sperm and possibly cilia 
on some of the epithelial cells were visible but they were not definite enough to be 
put in the drawing. Magnified about 300 diameters. 
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