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10 ILLINOIS BIOLOGICAL MONOGRAPHS [10 



CLASSIFICATION OF THE TRIBE CEPHALINA 



WITH THE TYPE SPECIES 

 Order 1. Gregarinoidea Minchin 1912. 

 Suborder 1. Eugregarinae L^ger 1900. 



Tribe 1. Cephalina Delage and H^rouard 1896 (Intestinal parasites almost ex- 

 clusively). 

 Family 1. Lecudinidae Kamm 1922. Non-septate gregarines inhabiting 

 digestive tract of jwlychaetes. Epimerite a simple knob. 

 *■ Genus 1. Lecudina Mingazzini 1891:469. Non-septate, epimerite simple, 



spores ovoidal with thickening at one pole. 

 Type: Lecudina peUucida (Kolliker) Mingazzini. 

 Family 2. Polyrhabdinidae Kamm 1922. Septate gregarines inhabiting the 

 digestive tract of polychaetes. Epimerites varied. 

 Genus 2. Polyrhabdina Mingazzini 1891:229. Septate, sporonts flattened, 

 ovoidal, epimerte a corona of hooks. Intestine of poly- 

 chaetes of the family Spionidae. 

 Type species: Polyrhabdina spionis (Koll.) Ming. 

 Genus 3. Sycia L6ger 1892:52, Epimerite knobbed, bordered by a thick 

 ring. Protomerite subspherical, deutomerite conical with 

 many inclosures in adult. 

 Type: Sycia inopinata L^ger. 

 Genus 4. Ulivina Mingazzini 1891 : 235. Elongate-ellipsoidal, protomerite 

 the more dense. 

 Type: Ulivina ellipHca Ming. 

 Family 3. Cephaloidophoridae Kamm 1922. Sporonts associated in twos, 

 no epimerite. Development intracellular; cyst dehiscence 

 by simple rupture, spores ovoidal vdth equatorial line. 

 Parasites of Crustacea. 

 Genus 5. Cephaloidophora Mawrodiadi 1908:101. Characters of the 

 family. 

 Type: Cephaloidophora communis Mawrodiadi. 

 Family 4. Stenophoridae L6ger and Duboscq 1904:361. Sporonts solitary, 

 epimerite absent or rudimentary. Development intracellu- 

 lar; cyst dehiscence by simple rupture, spores ovoidal with 

 equatorial line. Confined to Diplopods. 

 Genus 6. Stenophora Labb^ 1899: 15. Characters of the family. 



Type: Stenophora juli (Frantz.) Schn. 

 Genus 7. Fonsecaia Pinto 1918 : ? Like type genus except spores elongate- 

 ellipsoidal, no endospore. 

 Type: Fonsecaia polymorpha Pinto. 

 Family 5. Gregarinidae Labb6 1899:9. Epimerite symmetrical, simple. 

 Sporonts solitary or in association. Cysts with or without 

 spore-ducts, spores symmetrical. (Confined to insects with 

 two exceptions, development extracellular.) 

 Genus 8. Leidyana Watson 1915:35. Sporonts solitary, epimerite a 

 simple sessile knob. Dehiscence by spore-ducts. Spores 

 barrel-shaped, in chains. 

 Typ>e: Leidyana erratica (Crawl.) Wats. 



Remarks in parenthesis are added by the writer. 



