NEW INDO-MALAYAN LABOULBENIALES. 25 



taken. No signs of antheridial cells have been seen, and the append- 

 age appears to be simple, without sterile branches. The general habit 

 is somewhat like that of T. pfvrophUu.s, although it is at once dis- 

 tinguished by the form of its mature perithecium. In only one of the 

 specimens examined are two perithecia matured. 



Tettigomyces chaetophilus nov. sp. 



Quite hyaline. Receptacle stout somewhat broader distally, con- 

 sisting of from four to eight single superposed cells, which may be 

 followed by from one to three cells once divided longitudinally; the 

 cells separated on the perithecial side much smaller than those which 

 are continuous with the appendage. Appendage erect, its axis coinci- 

 dent with that of the receptacle, sometimes slightly curved outward 

 distally, consisting of from seven to seventeen flattened superposed 

 cells, two or three of the distal ones bearing sterile branches succes- 

 sively or irregularly from the inner side; the terminal cell usually 

 bearing two such branches; the latter simple or once branched, com- 

 paratively slender, short, and tapering. Perithecium divergent and 

 strongly curved outward, especially distally, the main body tapering 

 only just below the tip ; which is abruptly distinguished, rather short 

 and stout, the distal and basal halves well distinguished, the distal 

 tapering more rapidly to the bluntly pointed apex which may be 

 slightly apiculate; the outer and inner rows of wall-cells containing 

 usually twenty and eighteen cells respectively; the cells of the inner 

 row, except about three just below the tip which are larger, having 

 about one quarter to one third the transverse diameter of those in 

 the outer row. Perithecia 100-120 X 2S-3o m- Receptacle 40-75 X 

 30-40 IX. Appendage 50-100 /x. Total length to tip of perithecium 

 150-200 IX, including the foot (40 m) which is sharply pointed 

 below. 



On bristles of the 'abdominal antennae' of Grylloialpa Africnna 

 Palis. Samarang, Java. 



This species is more nearly allied to T. galeata from which it is at 

 once distinguished by its smaller size, and the entirely different con- 

 formation at the tip of the perithecium. The extreme dift'erence 

 between the transverse diameter of the cells of the outer row of wall- 

 cells and those of the inner distinguish it from all other known forms, 

 with the exception of T. Indicus. 



