JOURNAL, NATURAL HIST. SOCIETY OF SIAM. Vol. I. 
EXPLANATION OF PLATE. 
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Head of Lumenis IVUCOSUS,. 
A. Side view. B. Upper surface. C. Under surface. 
R. Rostral. N.. Nasal. { Int. Jnternasal. 
Lor. Loreal. Prf. Preefrontal. Pro. Preeocular. 
S. Supraocular. Po. Postocular. Pa. Parietal. 
Sbo. Suboeular, T. Temporal. | KF. Frontal. 
A. S. Anterior sublinguals. P. S. Posterior sublinguals. 
Arabic numerals—Supralabials. | Roman numerals—Infralabials. 
D. Body of Bungarus fuseciatus ( Banded Krait ) showing 
enlarged vertebral scales, and method cf counting the costal seales. 
Ventral shields shown on either side. 
K. Under surface of Chrysopelea ‘urnala showing Ventral (V ) 
and Subcaudal (S. C.) shields with the lateral keel and a notch on 
each side corresponding to the keel. Costal scales shown on either 
side, 
