201 



Primite Satellite Association 



Protomerite Deutomerite Protomerite Deutomerite Total 

 47 H 157 ;u 43 u 143,« 390 u 



This species was found in large numbers in both of the host beet- 

 les examined. It may be distinguished from Gregarina xylopini Crawley, 

 (in part, fig, 30'), a species from Xylopinus saperdioides Oliv., a tene- 

 brionid beetle closely related to the host of this species, by the shape 

 of the protomerite and the general measurements of the deutomerite. 

 The protomerite of G. xylopini is elongate, equal to half the length of 

 the deutomerite, and is so constricted as to resemble a dumb-bell. G. 

 xylopini is also a much slimmer gregarine than C. grisea. 



Gregarina passali cornuti Leidy. 



This species was represented by large numbers 

 of small individuals in each of the several specimens 

 of the lucanid beetle , Passalus cornutus Fab. , exa- 

 mined. 



Actinocephalidae. 

 Stephanophora xopha sp. nov. (Fig. 2). 



Type locality, New Orleans, Louisiana. March, 

 1913. 



Host, Nyctohates harbarata Knoch., a Tene- 

 brionid beetle. 



Average cephalonts, 700 /<; average sporonts, 

 1200 /<; largest observed, 1600//. 



Habitat, intestine. 



Cephalont. Length of the protomerite and 

 epimerite 9 or less in the length of the deutomerite; 

 width of the protomerite a little less than that of 

 the deutomerite, Avhich is 6 to 8 in the length of 

 the deutomerite; length of the epimerite about equal 

 to or less than that of the protomerite; epimerite 

 terete, narrowed at the base and terminated by a 

 ring of eight or more digitiform processes; epicyte 

 thin; sarcocyte about twice as thick as the epicyte over most of the deu- 

 tomerite, thicker over the posterior end of the deutomerite, at the junc- 

 tion of the deutomerite and the protomerite, and over the anterior portion 



Fig;ure 2. Cephalont 



of Stephanophora 



xophaìiììis. Length, 



800«. 



1 Crawley, Proc. Acad. Nat. Sci. Phila. LV. p. 47. fig. 30. 1903. 



