bo 
ig. 10. 
ig. 11. 
EXPLANATION OF PLATES. 
Puate I, Inrusorres, figs. 1—6; Ponypes, figs. 7—12. 
Vibrio lineola, p. 45, after Exrenpere [nfusions-thierchen, Tab. 
v. fig. 4, (very highly magnified, nat. size ggyp line). 
Ameba diffluens, p. 46, after Enrenpere, Tab. vu. fig. 12, 
(magnified, nat. size zy line). 
Siderolina calcitrapoides, p. 49, magnified about 8 times, after a 
specimen from Mont Sé Pierre. 
Chlamidomonas pulvisculus, p. 51, after EaRenBerG, Tab. 11. 
fig. x. B, (highly magnified, nat. size 74 line). 
Kerona mytilus, p. 55, after EnRenperc, Tab. xu fig. 1x. 
(magnified, nat. size } line). 
Vorticella nebulifera, p. 58, after EnrenperG, Tab. xxv. fig. 1, 
(magnified, nat. size of the bell zy line). 
Hydra grisea L., p. 73, from nature, nat. size ; a, a single polyp, 
extended ; b, the like retracted ; c, a polyp with two young buds 
+, ++; the last still very incomplete. 
Clava parasitica, Hydra nuulticornis, p. 75, after Forsx. Icon. 
rer. natur. Tab. xxvi. fig. 6, B. 
Coryne GaRTN., Syncoryne ramosa EnRENB. p. 75, highly magni- 
fied, after Loven, Wire. Archiv, 1837, Tab. vi. fig. 19 6, 6 bell- 
shaped execrescences with eggs ; comp. p. 70. 
Campanularia (gelatinosa), p. 76, in the embryonal state, 
magnified; B, in a more developed condition, in which it is 
about to quit the ovary; after Van Brnepen Mém. de 0 Acad. 
de Brux. Tom. xvit. Pl. 1. figs. 9, 18. 
A, B, 6, Zubipora musica L., p. 82, after Freycinet Voyage de 
? Uranie, Zool. Pl. 88. A, development of a young polyp c¢; a, 
empty tube, free of its polyp; 6, more developed polyp, opened 
longitudinally d, ¢; B, upper extremity of a polyp with the 8 
tentacles and the mouth in the middle ; c, longitudinal section 
of a tube ; here the animal is seen, and below it the eggs within 
the tube, attached to long filaments, 
VOL: I. 53 
