372 



HERBERT P. JOHNSON. 



maphrodites, containing nearly ripe sperm-cells and a limited num- 

 ber of ova which are enormous considering the size of the parent. 

 These facts have been already briefly recorded in the above- 



FlG. I, Lycastis quadraticeps Gay. Entire worm, dorso-lateral aspect, unstained, 

 mounted in balsam. The jaws, intestine, and large ova seen through the body-wall. 

 Nucleoli of ova opaque and visible. X 2 °- 



mentioned article (Johnson, '03). Since the species inhabits a 

 region remote from ordinary travel and one cannot reasonably 

 expect ever to see it in the living state, I have thought it worth 



