62 GENERAL ORGANIZATION OF THE PROTOZOA 



Epimerite a knob with a crown of eight large and recurved hooks. One 

 species, C. armata, Leger, from the gut of Gyrinus natator. 



Genus 53. Acanthospora, Leger, 1892. Sporonts solitary and of elongate oval 

 form. Epimerite a conical obtuse knob; spores oval with four bristles at 

 each end and a circlet of spines about the equator. Three species, A. pileata,, 

 Leger, from the gut of larva of Omoplus, a typical species. 



Genus .54. AncyropJiora, Leger, 1892. Sporonts solitary; posterior part pointed. 

 Epimerite a knob with appendages in the form of recurved hooks. Spores 

 biconical with polar tufts and six equatorial bristles. Two or more species 

 from carnivorous beetles. 



Genus 55. Cometoides, Labbe, 1899. Epimerite a spherical knob flattened cen- 

 trally and bearing a circlet of flexible filaments. Spores with a bunch of 

 bristles at each pole and two circlets of bristles about the equator. Two or 

 more species from the larv.-^ of beetles. 



Family 8. Menosporida, Leger, 1892. Sporonts solitary, epimerite symmetrical, 

 with appendages and connected with the protomerite by a long neck. Cysts 

 spherical, opening by simple rupture. Spores in form of crescents more or 

 less curved. 



Genus 56. Menospora, Leger, 1892. Epimerite cup-like and bordered by hooks. 

 One species, M. polyacantha, Leger, 1892, from gut of Agrion pueUa. 



Genus 57. Hoplorhynchus, Cams, 1S39. Epimerite in the form of a disk with 

 sharp teeth. One species, H. oligacanthus, Sieb., from the gut of Calopteryx 

 virgo, larva. 



Family 9. SlylorhynchidcB, A. Schn.,lSS(i. Epimerite symmetrical with or without 

 appendages. Cysts with two envelopes and pseudocyst. Brown or black- 

 colored spores in strings. 



Genus 58. Lophocephalus, Labbe, 1S99. Epimerite sessile, cup-like, with fringe 

 of vesicular appendages. Protomerite compressed. Cysts irregular, sub- 

 spherical. One species, L. insignis, A. Schn., in gut of Helops striatus. 



Genus 59. Cystoccphalus, A. Schn., 1886. Epimerite vesicular, with short neck. 

 One species, C. algerianus, A. Schn., from gut of Pimelia sp. 



Genus 60. Oocephalus, A. Schn., 1886. Epimerite a rounded knob on a short 

 neck. One species, O. hispanus, A. Schn., from the gut of Morica sp. 



Genus 61. Spherorhynchus, Labbe, 1899. Epimerite small, spherical or oval, and 

 carried on a long cylindrical neck constricted deeply below the epimerite. One 

 species, S. ophioides, A. Schn., from the gut of Acis sp. 



Genus 62. Stylorhynchus, Stein, 1848. Epimerite small and knob-like, borne on 

 an elongated neck of the protomerite. Deutomerite of the sporont much 

 elongated ; protomerite rounded. Two or three species, the most tj'pical being 

 S. longicoUis, Stein, from the gut of Blaps mortisaga. 



Family 10. Voliocysiida, Labb6, 1899. Epimerite regular and simple; no trace 

 of a septum. Spores oval with a polar thickening. ]\Iarine annelids. 



Genus 63. Dotiocystis, Leger, 1893. No trace of septum; oval spores, and sporo- 

 cysts with polar thickenings. Two or three species, the most typical D. 

 pellucida, KoUiker, from the gut of Xereis S|). 



Other genera referred to this division by Labb(^. JMinehin, and other systematists 

 are: Nematoides, Mingazzini, 1891, from the gut of cirrhipedes; Ulivina, 

 Mingazzini, 1891. from the gut of Audouinia filigera; Sycia, Leger, 1892, 

 from gut of same. 



Order 2. Coccidiidia. Cell-infesting sporozoa which usually reproduce by schizog- 

 ony and by sporogony, thus giving a life cycle with an alternation of asexual and 

 sexual generations. After fertilization the oosphere forms sporoblasts which 

 may or may not (asporocystea) be covered by a sporocvst membrane, and 

 which may each liecome transformed into one or several sporozoites. 



Suborder 1. Asporoiystinea. Coccidiidia in which the sporoblasts have no 



