330 



which lie at the side of the neural gland. The openings (o) connect 

 each with a duct, which apparently is lined by an involution of the pharyn- 

 geal epitheliuni. The duct is branched, as is seen opposite the points 

 {x) and (y). The bulk of the gland is not composed of ramifying tubules, 



but is formed by cells 



aggregated in loose 

 masses or in strings, 

 which apparently are 

 formed by proliferation 

 from the cells forming 

 the walls of the duct. 

 These masses or strings 

 are not distinct, but 

 fuse with one another, 

 giving the whole gland 

 a spongy appearance. 

 As is seen at the point 

 (^), the glandular cells 

 connected with one 

 duct may frequently be 

 continuous with those 

 connected with another 

 duct. The glands them- 

 selves, then, are not 

 always separate, but 

 may often be fused with 

 ^^^^^^^ one another. 



Fig. 1, Section perpendicular to the surface of the pharynx of Cynthia partita, in 

 the neighborhood of the ganglion, showing two pharyngeal glands. (600 Diam.) 



opening of duct; ph pharyngeal epithelium; x and y points where the duct bran- 

 ches, z region where the two glands unite. 



\y(, 



The glands of the pharynx do not differ in any way from those 

 of the cloaca. 



The larger of the glands shown in the figure is the largest I 

 have found. Most are of the size of the smaller gland figured, or 

 intermediate in size between the two. 



I have not determined the nature of these organs, or the character 

 of their secretion. The fact that they are not present in other species, 

 so far as known, and that they are present in Cynthia partita over 

 the whole surface of both pharynx and cloaca, would argue that they 



