22 



THAXTER. 



as far as possible, I have been forced to the conclusion that at least 

 seven must be recognized on the Javan host, which, although some of 

 them may be mingled on the same substratum, retain their indiAidu- 

 ality, without essential departure from their type form. I have even 

 been uncertain whether the type itself might not properly be sub- 

 divided. In addition to the eight species here described three others 

 are known to me; two from Africa and one from South America. 



Tettigomyces Gryllotalpae nov. sp. 



Colorless to pale straw-colored, sometimes faintly suffused with 

 brownish. Receptacle variably elongated, slender or rather stout, 

 nearly uniform throughout, or somewhat broader distally; consisting 

 of from twelve to forty or more superposed flattened cells which be- 

 come squarish; the distal one divided by a longitudinal septum into 

 two cells, one of which subtends the perithecium, while the other 

 forms the base of the appendage. Perithecium solitary, straight, or 

 somewhat curved outward, tapering more or less continuously from 

 the base to the tip, often somewhat inflated below; the tip well, often 

 abruptly distinguished, narrow and nearly cylindrical, straight or 

 slightly bent, the apex symmetrically rounded or slightly oblique; 

 the outer wall-cells 18-21 in each row, the inner 15-19; usually becom- 

 ing more or less prominent at maturity, so that the outline may be 

 conspicuously corrugated. Appendage erect, or diverging at right 

 angles from the perithecium; variably and often abnormally devel- 

 oped; consisting of from four or five to a dozen, usually somewhat 

 flattened and obliquely superposed cells, slightly prominent externally, 

 all of which, except the basal and terminal ones, may bear, on the inner 

 side, paired double rows of antheridial cells; the terminal cell some- 

 times bearing also a short sterile branch beside the terminal minute 

 spine-like process. Perithecia 135-310 X 35-62 /x. Spores 45-50 X 

 4.5 fji. Appendage 40-60 X 25-40 m- Receptacle 550-1400 X 25- 

 65 IX. Total length to tip of perithecium 235-1560 /x. 



On the inferior surface of the abdomen and on anal appendages of 

 Gryllotalpa Africana Palis. Samarang, Java. 



This species varies very greatly not only in size, as will be seen l)y the 

 measurements above given, but in the character of its perithecium 

 and appendage. The latter in the type form is more or less erect 

 and stout, with the rows of antheridial cells lying subhorizontally or 

 obliquely inward and upward, and this character is usually associated 



