298 



M. T. THOMPSON. 



The thoracic limbs appeared to be much like those of an adult 

 / . filosa as far as it was possible to examine them. No traces 

 of appendages other than these just mentioned were found. This 



"" W^t 



]'[(",. I. Youngest larva of P. filosa ; with three aspects of the carapace, anterior 

 and posterior extremities of the abdomen, maxilliped, first and second antennas more 

 enlarged. 



