12 THAXTER. 



side; a seventh cell lying immediately below the base of the perithe- 

 cium, between the third cell of the axial and the fourth cell of the 

 anterior series, the members of which, except the small terminal one, 

 cut off small cells like those of the posterior series; the lowest, how- 

 ever, like the posterior subbasal cell, Ijearing only a single appendicu- 

 late cell. Perithecium nearly symmetrical, erect, rich black-ljrown 

 except at the base where it is yellowish, and at the contrasting hyaline 

 tip; the venter slightly inflated below, tapering slightly above; the 

 upper half of its suffused portion broad, with often nearly parallel 

 margins, and slightly enlarged below the abruptly distinguished, 

 contrasting, hyaline, nearly symmetrical, blunt-conical tip. Peri- 

 thecia 80-90 X 22-24 /x- Antheridia 10 X 3.5 m- Total length to 

 tip of perithecium 135-150 X 30-36 fx. 



On the elytra of Tomarus sp.. No. 2095: Peradenij'a, Ceylon. 



This species is not nearly allied to any other that is known to me, 

 and is easily distingviished by its white-tipped, deep l)rown perithe- 

 cium, the body of which is more or less clearly distinguished into an 

 inflated ventral and broad neck-portion, above which the short tip is 

 abruptly differentiated. 



Rickia marginata nov. sp. 



Hyaline or faintly yellowish, with thick white walls, the appendages 

 only l:)ecoming slightly brownish, broad and flattened, very variable 

 in size; the cells of the receptacle multinucleate. Basal cell longer 

 than broad, broader distally, variably intruded between two paired 

 elongated subbasal cells, the posterior somewhat longer, distally 

 separated by a long single axial cell which extends above the base of 

 the perithecium and, together with a small flat cell lying above it close 

 against the venter and terminating in an appendage, constitutes the 

 axial series: the anterior series consisting of the anterior subbasal 

 cell and a normally single and elongate cell, which may occasionally 

 be irregularly divided, and extends from its apex to the base of the 

 perithecium; the posterior series also consisting normally of the 

 posterior subbasal cell and a single greatly elongated cell, rarely 

 divided transversely, followed by a smaller cell usually somewhat 

 longer than broad, often lying nearly horizontally and ending in 

 the basal cell of the primary appendage, around which it cuts off 

 small, often numerous, appendiculate cells all of which bear single 

 appendages not distinguishable from the primary appendage; the 



