No. 3.] 



BIOLOGY OF THE STENTORS. 



555 



ABBREVIATIONS. 



a. 



a.z., a.z., 



b.p. 



b.p.m. 



c.f. 



cl. 

 c.s, 



C.V., c.v} 

 d.a.z} 



ecp. 

 enp. 

 ex. p. 



fc. 

 f.v. 



g'S. 



I. 



l.b.s. 



Anus. 

 ' a.z.,^ etc. Adoral zone. 



Buccal pouch. 



Basal plate of membranella. 



Connecting filament uniting 

 membranellae. 



Cilium. 



Clear stripe. 



ContractUe vacuole. 



Distal extremity of adoral 

 zone. 



Ectoplasm. 



Endoplasm. 



Excretory pore of contractile 

 vacuole. 



Frontal field. 



Faecal matter. 



Food vacuole. 



Granular stripe. 



Line of fission. 



Left boundary-stripe of rami- 

 fying zone. 



l.c. 



m. 



men. 



mgn. 



mgn.^ 



7nH. 



o., o.,^ o., 



<?.' inv. 



p.,p.^ 



pi. 



ps., ps.^ 



p.z. 



r.b.s. 



r.z., r.z} 



sh. 



t.f. 



V. 



vel., vel.^ 



Longitudinal canal. 



Membranella. 



Micronucleus. 



Meganucleus. 



Anlage of meganucleus. 



Myoneme. 

 ■ etc. Mouth. 



Oral invagination. 



Peristome band. 



Pellicula. 



Foot. 



Pigmented zone of foot. 



Right boundary-stripe of rami- 

 fying zone. 



Ramifying zone. 



Sheath. 



Terminal filament of mem- 

 branella. 



Vacuole. 



Velum. 



