EXTRA-AMERICAN LABOIXBENIALES. 703 



Laboulbenia Lagarocerinus nov. sp. 



Basal cell bent at right angles, swollen, distinguished by a constric- 

 tion, twice as long as broad, or more, lying flat on the substratum, 

 pale brown, modified to form a concave attachment below the middle, 

 which is somewhat darker, and serves as a foot; the axis above it 

 straight, long and stout, erect; cell II pale dirty olivaceous, indis- 

 tinctly punctate, nearly uniform, obliquely rounded distally and 

 broader than the portion of the receptacle above it; cells III-V replaced 

 by a single cell, two to three times as long as broad, its upper half 

 quite free, and bearing distally a well developed unmodified insertion- 

 cell. Appendages olivaceous, erect or bent sidewise, lying close 

 against the lower half of the perithecium, small and poorly developed; 

 the outer straight, simple, of two or three cells; the inner bearing two 

 or three branchlets with short irregular terminations, and one or two 

 stout relatively large antheridia, with rather abruptly distinguished 

 necks; cell VI pale, somewhat broader than long; the cells above con- 

 colorous, not clearly defined, the region continuous with the base of 

 the venter; perithecium straight, of somewhat irregular outline; 

 the wall-cells clearly indicated by dark lines which are slightly spiral, 

 describing somewhat less than half a turn; the venter darker, clearer 

 olivaceous, slightly inflated below, tapering distally to the tip and 

 apex; the latter rather narrow, the lip-cells prominently rounded; 

 the outer larger, and lying wholly above the smaller inner ones. 

 Perithecium 75-85 X 20-22 jjl. Appendages about 35 fjL. Cell I 

 38 X 20 M- Cell II, 62-70 X 14 m- Total length above cell I, 140- 

 165 ju. 



On the wing of a new species of Lagaroceras. Gambia River, ^Yest 

 Africa, Xo. 2326. 



This species, which was found on one of the flies collected by Dr. 

 Wolbach, develops on the veins of the wings, those on the intervening 

 membrane producing only antheridia. It is most clearly distin- 

 guished by its aberrant basal cell, which lies flat on the vein, and is 

 attached to it by a sucker-like depression just below the middle. 

 Its structure is that of the Ceraiomyccs-type. 



Laboulbenia Muiriana nov. sp. 



Foot well developed, basal cell short, hyaline, abruptly broader 

 below the septum; subbasal cell somewhat broader, hyaline, punctate, 

 straight, two to three times as long; cell III somewhat rounded and 



