THE SPOROZOA 201 



elongate-oval or boat-shaped. B. firmus (Le"g.), (Fig. 1 7, e\ and B. tennis 

 (Le"g.), both from the intestines of larvae of Dermestes spp. 



FAMILY 7. ACANTHOSPORIDAE, L6ger. Sporonts always solitary. 

 Epim. symmetrical, simple or with appendages. Cysts dehiscing by 

 simple rupture. Spores garnished with bristles at the poles or equator 

 (Fig. 34, ). Parasites of carnivorous insects. 



Genus 55. Corycella, Leger, 1892. Protom. spherical, more or less 

 dilated ; epim. in form of a knob bearing a crown of eight large hooks 

 (Fig. 16). Unique species C. armata, Le"g., from the gut of Gyrinus 

 natator, larva. Genus 56. Acanthospora, Lger, 1892. Sporonts solitary, 

 of elongate oval form. Epim. in form of a conical obtuse knob. Spores 

 oval, with a tuft of four bristles at each pole and an equatorial circlet 

 of sharp spines. A. pileata, Le"g., from the gut of Omoplus sp., larva, 

 and two other species. Genus 57. Ancyrophora, Leger, 1892. Sporonts 

 solitary, the posterior end pointed. Epim. a knob bearing flexible or 

 rigid appendages in the form of recurved hooks. Spores biconicaL, with 

 polar tufts and six equatorial bristles (Fig. 34, e). A. gracilis, L4g., from 

 Carabus auratus, 0. violaceus, and Silpha thoratica ; A. uncinata, Lg., from 

 the larvae of Dytiscus, Colymbetes, Sericostoma, and Limnophilus rhombicits. 

 Genus 58. Cometoides, Labbe", 1899 (noni. nov. for Pogonites, Le"ger, 1892, 

 preoccupied). Epim. a spherical knob, flattened centrally, bearing a 

 circlet of flexible slender filaments (Fig. 17,/). Spores with a tuft of 

 bristles at each pole and two circlets of equatorial bristles. C. crinitus 

 (Le"g.), from Hydrobius, larva ; G. capitatus (Le"g.), from Hydrous, larva, gut. 



FAMILY 8. MENOSPORIDAE, Le"ger. Sporonts solitary. Epim. sym- 

 metrical, with appendages, and connected to protom. by a long neck. 

 Cysts spherical, dehiscing by simple rupture. Spores in the form of 

 crescents more or less curved (Fig. 34, </). Parasites of larvae of Agrionidae. 



Genus 59. Menospora, Le"ger, 1892. Epim. in form of a cup bordered 

 by hooks. Unique species, M. polyacantha, Le"g., 

 from gut of Agrion puella, larva. Genus 60. Hop- 

 lorhynchus, Carus, 1863. Epim. in form of a disc 

 bordered by sharp teeth. Unique species, H. oligacan- 

 thus (Sieb.), (Fig. 43), from gut of Calopteryx virgo, larva. 



FAMILY 9. STYLOBHYNCHIDAE, A. Schneider. 

 Tropho. with body usually elongated, and epim. 

 symmetrical, with or without appendages. Cysts 

 with two envelopes closely joined ; dehiscence by 

 means of pseudocyst Spores pouch -like, brown or 

 blackish, joined in strings, and dehiscing by a split 

 corresponding to the most convex border (Fig. 34, /). 



Genus 61. Lophocephalus, Labbd, 1899 (nom. nov. 

 for Lophorhynchus, A. Schneider, 1882, preoccupied). 

 Epim. sessile, hollowed into a cup bordered by a Flo> 48> 



membranous rim with vesicular appendages. Protom. Hopiorhynchus oligc.- 

 depressed. Cysts irregular, subspherical with areolar canthus (Sieb.), from the 



Vr- r-'-/eii_\ larva of Calopteryx. 



eminences. Unique species, L. insrgms (A. Schn.), (Prom Lankester.) 



from gut of Helops striatus (Fig. 44). Genus 62. 



Cystocephalus, A. Schneider, 1886. Epim. vesicular, with short narrow 



