JOURNAL OF MICROSCOPICAL SCIENCE. 



DESCRIPTION OF PLATE XVII, 



Illustrating Mr. E. Ray Lankester's notes on some Migrations 



of Cells. 



Fig. 

 1. — Cell with pseudopodial processes from perivisceral cavity of Lumbri- 

 cuius (probably migrated from tlie intestine). 



2. — Arrested sperm-cell from the perivisceral cavity of Tubifex (in 

 October). 



3. — Migrated muscular-fibre elements found in the perivisceral cavity of 

 'Tubifex and Lumbriculus. 



4. — Goblet-cell from the intestine-wall of Limnodrilus. 



5. — Migrated globular cells of intestine-wall from perivisceral cavity of 

 Tubifea;. 



6. — Oat-shaped perivisceral cells oiEnchytrceus, migrated from intestine. 



7. Branched yellow cells of the perivisceral endothelium of a species of 

 Limnodrilus. 



