THE SPOROZOA 199 



simple rupture. Spores navicular, biconical, or cylindrical with conical 

 extremities (Fig. 34, d). Parasitic for the most part in the guts of 

 carnivorous Arthropods. 



(1) SUB-FAMILY SCIADOPHORINAE, Labbe. Protom. umbrella-shaped, 

 with radiating ridges terminating posteriorly in recurved spines. Spores 

 biconical, the epispore with equatorial, the endospore with polar, dehiscence. 



Genus 37. Sciadophora, Labbe, 1899 (nom. nov. for Lycosella, Leger, 

 1896, preoccupied), with the characters of the sub-family. S. phalangii 

 (Leg.), from the gut of Phalangium crassum and P. cornutum ; two other 

 species, also from Phalangidae. 



(2) SUB -FAMILY ANTHORHYNCHINAE, Labbe". Spores ovoid with 

 pointed ends, joined in strings by an equatorial suture. 



Genus 38. Anthorhynchus, Labb, 1899 (nom. nov. for Anthocephalus, 

 A. Schneider, 1887). Epim. a large grooved knob. Unique species A. 

 sophiae (A. Schn.), from the gut of Phalangium opilio. 



(3) SUB-FAMILY PILEOCEPHALINAE, Labbe*. Epim. simple, conical, or 

 lance-like. Spores usually biconical. 



Genus 39. Pileocephalus, A. Schneider, 1875. Epim. shaped like a 

 lance-head (Fig. 17, c). P. heerii (Koll.), from the gut of Phryganid larvae 

 and P. chinensis, A. Schn., from the gut of Mystacid larvae ; two other 

 doubtful species. Genus 40. Amphoroides, Labbe, 1899 (nom. nov. 

 for Amphorella, Leger, 1892, preoccupied). Epim. spiked or globular; 

 sporonts solitary ; protom. very short, compressed, hollowed out into a 

 cup. Spores biconical. Unique species, A. polydesmi (Le"g.), from the gut 

 of Polydesmus complanatus. Genus 41. Discorhynchus, Labbe", 1899 (nom. 

 nov. for Discocephalus, Leger, 1892, preoccupied). Epim. large, in the 

 form of boss surrounded by a thick ring ; protom. globular, larger than 

 the deutom. Spores biconical, obese. Unique species, D. truncatus (Leg.), 

 from the gut of Sericostoma sp., larva. 



(4) SUB-FAMILY STICTOSPORINAE, Labbe". Spores biconical, with 

 slightly curved, pointed terminations ; the endospore with numerous little 

 papilliform elevations. 



Genus 42. Stictospora, Leger, 1893. Epim. with a globular head, 

 depressed ventrally and covered with projecting ribs terminating posteriorly 

 in spikes. Spores biconical, the points slightly curved inwards. Unique 

 species, 8. provincialis, Leg., from the gut of the larva of Melolontha and 

 Rhizotrogus. 



(5) SUB-FAMILY ACTINOCEPHALINAE, Labbe". Epim. with appendages 

 (except in Stylocystis). Spores symmetrical, navicular, biconical, or 

 cylindrical with pointed ends. 



Genus 43. Schneideria, Leger, 1892. Trophozoite non-septate ; epim. 

 a thick plate bordered by a rim composed of rib-like thickenings (Fig. 18). 

 Spores smooth, obese, biconical. S. mucronata, Leg., from the larva of 

 Bibio m,arci t and S. caudata (Sieb.), from the larva of Sciara nitidicollis. 

 Genus 44. Stylocystis, Le"ger, 1899. Trophozoite non-septate; epim. in the 

 form of a pointed bristle or sharp spine, usually curved. Sporonts solitary. 

 Spores biconical. Unique species S. praecox, Le"ger, from the gut of the 

 larva of Tanypus sp. (Diptera). While evidently closely allied to the 

 foregoing genus, the epimerite lacks the appendages characteristic of the 



