432 BIOLOGY OF THE PROTOZOA 



33. Genus Geniorhynchus, Schn. (1875). The epimerite is discoid and borne 



on a long neck and bears a tuft of short bristles; sporoblasts sub- 

 navicular; gut of nymphs of Libellulidse. 



34. Genus Adinocephalus, Stein (1848). Epimerite small, sessile or borne 



on a short neck, with from eight to ten sharp spines or simple 

 bifurcate processes; sporoblasts biconical; several species from the 

 intestines of beetles. 



35. Genus Pyxinia, Hammerschmidt (1838). — The epimerite is a flat 



crenulate disc from the center of which rises a short or long style; 

 sporoblasts biconical ; many species in digestive tracts of Coleoptera. 



36. Genus Beloides, Labbe (1899). Epimerite in the form of a disc or knob 



bearing about ten teeth in addition to a long spike; sporoblasts 

 navicular or oval; in digestive tracts of species of Dermestes. 



37. Genus Stylocystis, Leger (1899). Epimerite in the form of a long spine 



which is usually curved; sporoblasts biconical; larva of Tanypus sp. 



38. Genus Tamiocystis, Leger (1906). Epimerite a short sphere set with 



six or eight recurved hooks; deutomerite divided by transverse 

 septa into numerous transverse segments; sporoblasts biconical; 

 gut of the neuropteron Sericostoma. 



39. Genus Hoplorhynchus, Carus (1863). Epimerite a flat button with 



eight to ten finger-form processes carried on a long coUar; sporo- 

 blasts biconical; digestive tract of myriapods. 

 40 Genus Amphorocephalus, Ellis (1913). Epimerite dilated in the middle 

 and terminates in a concave disc with a fluted periphery; the pro- 

 tomerite is constricted across the middle; sporoblasts unknown; 

 gut of Scolopendra heros. 



41. Genus Steinina, Leger and Duboscq (1914). Epimerite a short mobile 



finger-form process which may change into a flattened button; 

 sporoblasts biconical; several species hi diff"erent species of Coleop- 

 tera. 



Family 6. Acanthosporidae, Leger (1892). Gamonts always solitary; 

 epimerites simple or with appendages; sporocj^sts open by simple rupture; 

 sporoblasts ornamented with bristles at the poles or at the equator. 



42. Genus Corycella, Leger (1892). Protomerite spherical and somewhat 



dilated ; epimerite a knob with a crown of eight large recurved hooks ; 

 sporoblasts biconical with four spines at each pole; digestive tract 

 of Gyrinus natator. 



43. Genus Accmthospora, Leger (1892). Epimerite a simple conical knob; 



sporoblast biconical or oval with a girdle of equatorial spines and a 

 group of four spines at each pole; species in the gut of Omoplus sp. 

 and Cistelides sp. larvae. 



44. Genus Ancyrophora, Leger (1892). Deutomerite pointed; epimerite a 



knob with appendages in the form of recurved hooks; sporoblasts 

 biconical with polar tufts and six equatorial bristles; two species 

 from ^'arious Coleoptera. 



45. Genus Cometoides, Labbe (1899). Epimerite a spherical knob flattened 



centrally and bearing a circlet of flexible filaments; sporoblast with 

 a tuft of bristles at each pole and two circlets of bristles about the 

 equator; two species from the Coleoptera Hydrous sp. and Hydro- 

 bius sp. 



Family 7. Stylocephalidse, Ellis (1912). Gamonts solitary; epimerites 

 varied; sporoblasts irregular in shape, brown or black, and in chains. 



46. Genus Stylocephalus, Ellis (1912). Epimerite a dilated knob at the end 



of a long and slender neck ; sporocyst marked by small papillte and 

 indentations; sporoblasts hat-shape; several species in Crustacea, 

 Phalangidse, and Coleoptera. 



