297] STUDIES ON GREGARINES— WATSON 87 



third the length of the sporont. Conical papilla at apex, deep con- 

 striction in posterior third and a constriction of equal depth at septum. 

 Deutomerite just behind septum wider than protomerite just in front 

 of it, regularly conical, tapering from shoulder to a blunt point. Endo- 

 cyte dense. Nucleus not visible. Cysts spherical, 410/a in diameter, 

 dehiscence by pseudocyst. Spores navicular, slightly curved, slender, 

 two integuments, thin and blunt refractile rod of endocyte at each end, 

 €/A long ; spores 19 by 4/>i. 



Taken at Raleigh, N. C. Host: Lithohius forficatus L. Habitat: 

 Intestine. 



The genus Acutispora was created by Crawley for this unique 

 species. 



TRICHORHYNCHUS PULCHER Schneider 



[Figures 35, 36] 



1882 Trichorhynclius insignis Schneider 1882 :439-42 



1882 Trichorhynchus pulcher Schneider 1882 :439-42 



1889 Gregarina megacephala Leidy 1889 :10-11 



1899 Trichorhynchus pulcher Labbe 1899 :16 



Trichorhynchus: Sporonts solitary, elongate, length 420 to 750/x,; 

 width 240/x,. Ratio length protomerite : total length : : 1 : 4 to 1 : 7. 

 Width protomerite : width deutomerite : 1 : 1 to 1 : 1.6, Epimerite 

 nearly half the total length of body without it. Protomerite conical, 

 rounded at summit. Slight constriction at septum. Deutomerite just 

 below septum same width as protomerite just above it, widest in ante- 

 rior third. Constricted below middle portion then dilated and ending 

 in a broad but sharply pointed cone. Epimerite a very long flexible 

 'tongue' proceeding from the apex of the protomerite, slightly dilated 

 at the extremity. Endocyte in both parts dense. Nucleus ovoidal with 

 one large karyosome. Cysts ovoidal, 316 by 303/t. Dehiscence by pseu- 

 docyst. Spores cylindrical, rounded at ends, 9.7 by 5.8/x. 



Taken at Poitiers, France ; Philadelphia, Pa. Hosts : Scutigera, 

 sp.; Scutigera forceps (Raf.) (Cermatia f.). Habitat: Intestine. 



This gregarine was described by Schneider under the name T. in- 

 signis, but his references to his plates are to figures of T. pulcher. It 

 was probably an error in the proof which was accountable for the 

 incorrect naming of the species, for the name of the species immediately 

 preceding is Lophocephalus insignis. 



Labbe referred to the species as T. pulcher. 



