EXPLANATION OF PLATE XLVI. (continued). 

 FIG. 



40-43. ACINETA MYSTACINA, Ehr., vol. ii. p. 834. 40 and 41, Long and short pedicled 

 varieties, the former with, at a, a germinal bud x 150 ; 42, lorica with 

 contained animalcule seen from above ; 43, a germinal bud with contained 

 ciliated embryo further enlarged. 



44. ACINETA NOTONECTVE, C. & L., vol. ii. p. 833, x 150 (Clap. & Lach.). 



45-47. ACINETA PATULA, C. & L., vol. ii. p. 835. 45 and 46, Animalcules with tentacles 

 extended and contracted, x 100 ; 47, example with elongate lorica giving 

 birth to a ciliated embryo (Clap. & Lach.). 



48-51. HEMIOPHRYA GEMMIPARA, Hertwig sp., vol. ii. p. 823. 48, Distal extremity of 

 pedicle bearing animalcule with extended tentacles of two orders, suctorial 

 and prehensile, x 150; 49, prehensile rib tentacles more highly magnified, 

 showing spirally disposed granular external sheath ; 50, example with six 

 terminal buds, into each of which is produced a prolongation of the 

 branching endoplast, the tentacles not represented ; 51, an hypotrichously 

 ciliated embryo, x 400 (Hertwig). 



52. SOLENOPHRYA CRASSA, C. & L., vol. ii. p. 828, x 150 (Clap. & Lach.). 



53-56. PODOPHRYA MOLLIS, S. K., vol. ii. p. 821. 53 and 54, Adult animalcules, X 150 ; 

 55 and 56, successive phases of transverse fission of the samezooid, first mani- 

 fested by the extension and fixture of two ordinary suctorial tentacles to a 

 more remote point, these two ultimately fusing together and joining the 

 pedicle of the newly produced animalcule. 



57. ACINETA MYSTACINA, vol. ii. p. 834. Ciliated embryo, x 300 (Stein). 



58, 59. PODOPHRYA STEINII, C. & L.,vol. ii.p. 815. 58, Adult zooid, x 150 (Stein) ; 59, 

 ciliated embryo, x 300 (Stein). 



