THAXTER. — NEW LABOULBENIACE^E. 427 



Peyritschiella Amazonica nov. sp. 



Peritheciuru trauslucent brown, about as long as the receptacle, sub- 

 clavate large, contracted below to form a neck-like base, somewhat in- 

 flated distally, the tip well though not abruptly distinguished, tapering to 

 the nearly truncate apex formed by the slightly expanded tips of the lip- 

 cells which are otherwise unmodified. Receptacle rather narrow, pale 

 translucent brown, consisting of a single basal cell followed by three 

 tiers of cells ; the lower symmetrical or nearly so consisting of three 

 long narrow nearly equal cells not appendiculate and not projecting 

 laterally: the middle tier asymmetrical, consisting of about twelve cells, 

 the series projecting distally on either side, all the cells except the three 

 larger median and the external ones producing distally short typical ap- 

 pendages, the third cell on the right from the median cell bearing a 

 prominent erect antheridium : the terminal tier very similar to the middle 

 one, consisting of about the same number of cells which produce short 

 typical appendages distally and (in the types) a single nearly median 

 perithecium. Perithecia 200-210 X 36 fx. Receptacle 225 X 70 fx. 

 Antheridium 45 jx long. Total length to tip of perithecium about 

 400 ,x. 



On an undetermined staphylinid. British Museum, No. 400. Nanta, 

 Amazon River. 



Peyritschiella protea nov. sp. 



Perithecia translucent, brownish amber colored, rather stout and sym- 

 metrically inflated, the symmetrical tip tapering rather abruptly, the apex 

 rather narrow truncate, the lip-edges unmodified. Receptacle nearly or 

 quite hyaline, consisting of a single basal cell, above which the three 

 typical tiers of cells are very variously developed : the lowest of these may 

 rarely consist of a single cell, often of three which do not project laterally, 

 or in well-developed specimens of as many as twelve or more cells, those 

 external to the middle three forming ou either side distal external angular 

 usually asymmetrical projections, one or both of which may bear termi- 

 nally one or even two perithecia and typical appendages : the middle series 

 like the lower when the latter is well developed, subtriangular in form, 

 consisting of sometimes as many as fifteen to eighteen cells, generallv 

 somewhat asymmetrical ; a single perithecium usually arising distally from 

 the projecting portion on either side, together with numerous typical 

 appendages : the distal tier similar to the middle one, mostly smaller, 

 somewhat asymmetrical, bearing usually a single perithecium above the 



