112 



DR. J. D. F. GILCHRIST ON LARVAL AND 



extend beyond the fourth segment of the antenna by about a third the 

 length of the inner. 



Fiff. 25. 



Anterior dorsal surface of Pliyllosoma of 3-5 mm., showing rostral elevation. 



The antenna consists of a basal segment, in which is lodged the antennal 

 gland, and which can be seen to be marked off from the body. 



Fig-. 26. 



Mandible of Pliyllosoma of 35 mm. 



The mandibles (figs. 26, & 27, md.) are well developed, but of the same 

 type as has been seen throughout. Each consists of a short undivided and 



