Mr. E. R. Lankester. 



[June 15, 



98 



sponding to these coxal glands of the Scorpion, any more than I have 

 in the case of the similar glands of Limulus. 



Diagram of the anterior portion of a Scorpion's body, to show the position of the 



coxal glands. 



A. Anterior glandular caeca of the alimentary canal (salivary glands of Newport 



and Blanchard, not of Dufour). These are drawn of smaller size than natural, 

 and are turned forward so as to expose the coxal glands. 



B. The coxal gland of the left side. 



C. Fibrous septum (diaphragm of Newport) formed by the posterior cornua of the 



entosternite. 



D. Glandular caeca of the alimentary canal (so-called " liver"). 



E. Axial portion of the alimentary canal. 



1 to 6. The six pairs of limbs of the prosoma. 



These oblong, almost egg-shaped, glistening white bodies have not 

 altogether escaped the notice of previous students of the anatomy of 

 Scorpions ; but owing to the fact that spirit-specimens have been 

 used by most naturalists who have dissected Scorpions, and that spirit 

 fails to preserve the softer tissues of a whole Scorpion in a fit state 

 for observation, the nature of these glands has been misunderstood. 



I have been enabled to dissect freshly-killed specimens of the large 

 Indian scorpion, Sc. cyaneus (allied to the species called Buthus* 



* Not the genus Buthus of Leach, but of Gervais, identical with Heterometriis of 



