THE SPOROZOA 



231 



Mesnil has proposed, however, the new generic name Legerella for 

 Eimeria nova, on the ground that the use of the name Eimeria is incon- 

 venient now that all the other species have been found to be simply 

 schizogonous stages. Experts learned in the laws of zoological nomen- 

 clature may decide how far such a course is justifiable and proper. 1 



FAMILY 2. DISPOROCTSTIDAE, Leger (Tribe Disporea, A. Schneider). 

 The oocyst contains two spores (chlamydospores). 



Genus 2. Cyclospora, A. Schn., 1881. Spores dizoic. 



Fio. 59. 



Sporogony of Cyclospora glomericola, A. Schn. (par. Glomeris). a, oocyst freshly encysted. 6, 

 the contents of the oocyst have contracted, and a partition is formed at each end. c, d, e, forma- 

 tion of the two sporoblasts. /, the sporoblasts developing into spores, g, oocyst with ripe 

 spores, h, spore more highly magnified, showing the two sporozoites and the sporal residuum. 

 From Wasielewski, after A. Schneider. 



The type -species is G. glomericola, A. Schn., from the intestinal 

 epithelium of Glomeris. Very recently Schaudinn [5 la] has described 

 in great detail the life-cycle of another species, C. caryolytica, Schaud., 

 which occurs as an intra- 

 nuclear parasite of the 

 intestinal epithelium of the 

 mole. 



Genus 3. Diplospora, 

 Labbe", 1893. Spores tetra- 

 zoic. 



Type-species, D. lacazei, 

 Labb (including!). rivoltae, 

 Labbe), from a great num- 

 ber of birds. Others are D. 

 cammillerii, Hagenm., from 

 the lizard Gongylus ocellatus; 

 D. mesnili, Sergent [516] 

 from Chamaeleo vulgaris ; 

 and D. laverani, Hagenm., 

 from the snake Coelopeltis Cysts of Diplospora lieterkuhni (Labbe), (par. Sana 

 lareriina both orrnrrino- in esmlenta). a, cyst with two sporoblasts, each with two 



mna, DI ing in chromatin m asses (chr). b, cyst with two ripe spores, 



Algeria. D. lieberkiihni each containing four sporozoites (sp.z) and a sporal resi- 



n i , ,-. /T -,. ,. . duum(sp.r). After Laveran and Mesnil [40], X 1000. 



(Labbe) (Fig. 60), occurring 



in the kidneys of Rana esculenta (where it was first noted by Lieberkuhn 



in 1854), has been made by Labbe the type of his genus Hyaloklossia 



1 Stiles [59] has recently proposed the name Eimeriella, as a substitute for 

 Eimeria, on the ground that the latter name belongs, by right of priority, to the 

 genus commonly known as Coccidium (see below, p. 232, footnote). 



Fio. 60. 



