430 
W. X. F. WOODLAND. 
EXPLAXATIOX OF PLATE 28, 
Illustratino- Mr. W. X. F. AVoodlancFs paper, On the 
Maxillary Grlands and some other Features in the 
Internal xAnatoiny of Sqnilla.’^ 
[All figures of Squilla clesniarestii. and all dra^m by means of 
the camera Incida.] 
Fig. 1. — Anterior end of Squilla, dissected to show the maxillary 
glands (Jiir. GL) in situ. The carapace has been cut away dorsally 
over a large area, and the underlying hypodermis, some large oblique 
and longitudinal body muscles, the anterior caeca of the liver, and part 
of the gut and cephalic aorta have been also removed. ( x 3.) 
Fig. 2. — The maxillary gland {Mx. Gl.) removed from the body 
with the second maxilla and viewed laterally. Its external aperture 
(Op.) on the papilla (situated on the outer or convex side of the limb), 
the bladder (Bl.) and the mass of the gland can be seen. Most of the 
muscles entering the limb have been removed, and two are represented 
in outline by dotted lines. GL, small gland-cells. ( x 6.) 
Fig. 3. — Transverse section across the left side of Squilla in the 
region of the maxillary gland. As mentioned in the text, the details of 
the gland structure are shown on an immensely magnified scale in order 
to make apparent the general construction of the gland ; in reality the 
cell-layers of the gland are much smaller and much more numerous. 
J\L Mx. GL General (kidney) mass of gland. D Mx. GL Duct of maxil- 
lary gland. Bl. Bladder portion of gland. Op. Opening of maxillary 
gland on papilla. P. Col. “Plug” of columnar epithelium at opening 
of duct (see Text-fig. 8). (x 20.) 
