GREGARINIDA. 
Prot, 35 
'J'ho development of the Myxosporidia found in the gills islsimilar in its 
main features to that just detailed. 
Gregarina termitis^ Leidy, J. Ac. Philad. viii. p. 441, pi. lii. fig. 27, in 
Termes flavipes^ New Jersey. 
Orthospora^ Schneider, (40) p. 389. Differs from Eimeria in having a 
definite number (four) of falciform corpuscules in its spores. 
Orthospora propria, id. 1. c. pi. xxii. figs. 1-18. Digestive canal of 
newts, from near Poitiers. 
Cyclospora, id. 1. c. p. 391. Cyst containing only two spores, each con- 
taining usually only two corpuscules. C. glomericola, id. Z. c. p. 302, 
pi. xxii. figs. 19-43. Digestive canal of Glorneris. It contains a nucleus ; 
in encystation a septum forms across each end of the cyst. 
Eimeria nova, id. Z. c. p. 397, pi. xxii. figs. 44-56. Malphighian vessels 
of Glorneris. 
Klossia soror, id. Z. c. p. 399, ph xxii. figs. 58-64. Renal organ of 
Neritina fluviatilis, Poitiers. 
Isospora, id. Z. c. p. 401. Differs from Cyclospora in having an indefi- 
nite number of corpuscules in the spore. /. ram, id. Z. c. pi. xxii. figs. 
65-72, from Limax, Department of Aisne, France. 
New Genera and Species. 
