268 THAXTER. 



relatively long tapering tip-region, which is not well distinguished, 

 the apex small and rounded. Peritheeia 150-190 X 20 /z. Recep- 

 tacle, including foot, 4S-56 X 12 //. Appendage 20 X IS /x. 



On a myrmecophilus aleocharid. No. 2612, Kamerun, West Africa. 



Two mature females of this curious and very simple form have been 

 examined, neither of which, though well developed, bear a secondary 

 appendage although a small cell is separated from the subbasal cell 

 below the insertion of the perithecium. The single male examined is 

 still adherent to the foot of the female, with the antheridium so turned 

 that its structure can only be surmised. The host was taken by IVIr. 

 Schwab among a number of Staphilinidae following a procession of 

 soldier ants. 



Dimeromyces Gyrophaeniae nov. sp. 



Male individual hyaline, faintly tinged with yellowish. Receptacle 

 consisting of four or five somewhat oblique cells; the basal nearly as 

 long as the rest combined. Appendage short, stout, of two subequal 

 cells; the distal thick-walled, slightly broader and rounded. Anther- 

 idia three or four, diverging at about 45°, the stalk slightly shorter 

 than the venter and neck; the latter short, straight, conical, hardly 

 distinguished. Receptacle .34 X 12-13 /u. Appendage 17 X 8 /x. An- 

 theridia 30 X 8.5 /jl. Total length to tips of antheridia 64 ii. 



Female individual pale yellowish. Receptacle turned sometimes 

 at right angles to the axis of its basal cell : consisting of usually eight- 

 een to twenty cells, those above the basal very greatly flattened, 

 especially the lower ones: giving rise alternately to peritheeia and 

 appendages, which diverge left and right, respectively, projecting 

 upward from the nearly horizontal recei^tacle. Primary appendage 

 like that of the male; secondary usually four-celled, the three lower 

 subequal, hardly longer than broad, the distal one broader, rounded 

 and thick-walled. Peritheeia subclavate, curved, tapering to the 

 slightly bent short tip, and rather small asymmetrical apex. Peri- 

 theeia 75-80 X 21 /x. Receptacle, above basal cell, 55-70 X 20-25 fi. 

 Primary appendage 17-19 jjl; secondary 46 /jl. 



On. the elytra of a species of Gyrophacna: No. 2610, Kamerun, 

 West Africa. 



The material of this peculiar species is somewhat scanty, and the 

 peritheeia are so irregularly bent that it is difficult to determine their 

 exact outline. The species is allied to D. Rorcri and D. Copropori, 

 but its differences from either are so great as to render a comparison 

 superfluous. 



