JOURNAL OF MICROSCOPICAL SCIENCE. 



DESCRIPTION OF PLATES VIII AND IX, 



Illustrating Dr. Strethill Wright^s paper on British Protozoa. 



PLATE VIII. 



Zooieireu rdigata, seen by " black-groimd" illumination, and focused for 

 tlie centre of the endosarc — a ; with palpocils extended aud cuived by an 

 upward curi'eut of water; b, emerging from its cell ; c, retracted within 

 its cell. 



PLATE IX. 



1. — Zooteirea religata^ with palpocils paitially extended, and tubular con- 

 tractile pedicle distended with water ; a, ectosarc ; b, endosarc ; 

 c, tube ; d, muscular band ; e, areolar fibres ; /, gelatinous cell. 



2. — Young Freya producta building its tube. 



'i.—Frei/a producta, with lengthened tube ; a, old mouth of tube ; b, 

 thickeued part of body from which the tube is secreted. 



4. — Freya obsteirica ; «, nucleus. 



5. — Fret/a stylifer., extended. 



G. — „ „ in its cell. 



7. — Oxylricha luugi-caudala, with tail extended. 



8. — ,, ,, with tail contracted. 



