Pi ATE 30. 



Fu;. 1. G(ii((lri/ina robnstu. X IS. (i. ventral view: b, dorsal view; r, aperturul view. 

 2. C'lcniJinn pr'iiuK ra. X "-■"). o., front view: h, apertural view, 

 o. Chiriilina jiriiiKwrii. X -■"i- Younu form stil! in l)iserial stage. 



4. ( iitiulnjinii (ittniiKild. X -O. 



5, (). Cliinillnd jiriindt t (I. X -5. Apertures of liiserial sta.tre. 



7. Chirulina iirlniarni. X 25. Aperture of adult. 



8. ClaruUmi n>hin<I(ilii. X 25. a, front view: 6, apertural view. 



ol9 



