PROTEOMVXA 



89 



A. ^NIyxoidea. — Flagella 1-3 ; zoospores separating at once. 



1. ZoospoREAE. — Brood -cells escaping as Hagellulae, even if they 



become amoeboid later. CiliGphrys Cieuk. ; Pseudospora Cienk. 

 (Fig. 29). 



2. AzoospoREAE. — Cells never flagellate. Protomyxa Haeckel ; Plasmo- 



(liophora \Yoroi\h\; Vampyrella Cienk. ; Serums2)ori(lmm'L. Pfeifl'er. 



B. C'atallacta. — Brood-cells of cyst on liberation adhering at the centre to 



form a spherical colony, multiflagellate ; afterwards separating, and 

 becoming amoeboid. Magosphaera Haeckel (marine).^ 



Plasmodiopliora infests the roots of Crucifers, causiug the 

 disease known as " Hanburies," or " fingers and toes," in turnips, 

 etc. Serumsporidium dwells in the body cavity of small Crustacea. 



-Pseiidospora limlstedtii. 1, 2, Flagellate zoospores : 3, young anioebula, 

 with two contractile vacuoles, one being reconstituted by three minute formative 

 vacuoles ; 4, 5, an anioebula migrating to a fuugus hypha through the wall of 

 which it has sent a long pseudopodium ; 6, anioebula full-grown ; 7, 8, mature 

 cells rounded off, protruding a fiagellum, before encysting ; 9, young sporocyst ; 

 10, the nucleus has divided into a brood of eight; 11-14, stages of formation of 

 zoospores, cv, Contractile vacuole ; e, mass of faecal granules ; Ji, flagellum ; n. 

 nucleus, x ai>out ^f^". 



]\Iany of this group were described by Cienkowsky under the 

 name of " Monadineae " (in Arch. Mih: Anat. i. 18G5, p. 203). 

 Zopf has added more than anyone else since then to our know- 

 ledge. He monographed them under Cienkowsky's name, as a 

 subordinate group of the Myxomycetes, " Fihthiere oder Schleim- 

 pilzc" in Schenk's Handh. d. Bot. vol. iii. pt. ii. (1887). To 

 Lankester {Encyd. Brit., reprint 1891) we owe the name here 

 adopted. Zopf has successfully pursued their study in recent 



^ Jlost of Haeckel's Monera, described as iion-nucleate, belong liere. Several 

 have been proved to be nucleate, and to be rightly placed here ; and all rt(|uire 

 renewed study. 



