51] STUDIES ON GREGARINES—KAMM 51 



nearly sessile papilla indented in middle and crenulate on periphery. 

 Nucleus ovoidal, nearly spherical, with many karyosomes. 



Cysts spherical, 3^ mm., dehiscence by simple rupture, spores biconical 

 but rounded off at poles. Unique. 9 x 5/*. 



Intestine and caeca of Phalangium crassum, P. cornutum, Opilio grossi- 

 pes Herbst. 



Taken in Provence, France and East Prussia. 



Two species have been described previous to this one and considered 

 by Leger as synonymous; I have, however, not considered them so. They 

 are incompletely described but quite different from the type species and 

 because of the regularity of the digitiform bifurcate processes may not 

 belong in the genus. This is what Leger says concerning the species: 

 .... sans rien pr^juger des especes observ6es par M. Johansen et M. Rossler, je donne 4 

 celle que j'ai 6tudiee le nom specifique de Lycosella phalangii qui indique son origine. H ne 

 parait pas douteux cependant que, d'apres leurs caracteres morphologiques, les deux gr6- 

 garines signal^es par ces auteurs appartiennent au genre Lycosella et soient des expeces trfes 

 voisines de celle que je d^cris dans ce travail, c'est ce que 1 6tude complete de leur cycle 

 viendra nous confirme un jour on I'autre. 



SCIADOPHORA FISSIDENS (Rossler) Labbe 

 [Figures 110 and 111 j 

 1882 Actinocephalus fissidens Rossler 1882: 700 



1897 Lycosella Phalangii Leger 1897:12,36 



1899 Sciadophora fissidens Labbe 1899: 18 



1903 Sciadophora fissidens Minchin 1903: 338 



Sporonts solitary, 2 to 3 mm. in length. Ratio LP : TL :: 1 : 8; 

 WP : WD :: 1 : 1.5. The protomerite is broadly dome-shaped, at the 

 mid-region there is developed a corona of processes directed gently back- 

 ward in two rows, the upper consisting of twelve long sharp spines, the 

 lower of twelve broad plates widest at the middle and bifurcate at the 

 ends, superficially resembling a lobster's claw. These are arranged 

 alternately with the spines of the upper row. (Fig. 111). Deutomerite 

 widest at shoulder, tapering gently backward, the posterior third, however, 

 being a very much narrowed cylinder. Nucleus small, spherical. 



Intestine and caeca of Phalangidae sp. 



Taken at Freiburg, Germany. 



This peculiar parasite in appearance is very unlike the type species, 

 (Cf. Figs. 62 and 110) but because the crenulations are a part of the 

 protomerite and not an epimerite, must be placed in this genus, or in a yet 

 undescribed genus very similar. The complete life-history remaining 

 unsolved, the species is placed here tentatively. 



Rossler describes the peculiar protuberances thus: 



.... zeigt am Kopf zwolf gespaltene Hakenpaare imd zwischen je zweien dieser Paare einen 

 einfachen, stachelformigen Dorn. 



