THAXTER. 
THE 
43d 
Ceratomyces Mexicanus Thaxter. Hate I AX. fig. 3. 
Proc. Am. Acad. Arts and Sci., Vol. WWII. ,». 43, June, 1901. 
Dark amber-brown. Perithecium with a slight lubmedian inflation; distally broad, the nut 
urning abruptly inward distally to the inconspicuous retracted tip, « hich lirs el, at the 1,-,. 
r mar- 
perithecial appendage, and is externally subtended by irregular inconspicuous papillate protrusi, 
the basal cell of the appendage slightly divergent several times a.s long a.s broad; the « u rnal Btrgii 
straight, the inner strongly concave with a median blackish suffusion; the rest of th, ppendage slight!} 
ape ring 
e the basal cell. Tin 
100 
antheridial appendage and the receptacle much as in C. mirahUis. Spurs S5 X 5 ft. 1', ritb •■ u 
47o X 110-125 p, the appendage about 290 jt, its basal cell 70 X 26 and 3(1 u. Total length to tip of 
550-640 
Troput 
<■ 
1177, and of T. chahjbeus Cast., British Museum, No. 771*, < )axaca, Mexico. 
lion. \. 
'/< 
C. Braziliensis, but it is readily distinguished by its long genicular jj]>]>rn(lage, large siy< ami dark color 
It is most nearly related to C. Brazil terms and to C. wkabilis. 
Ceratomyces mirahii.is Thaxter. 
Additional material of this common and widely distributed species li l><< u examined from tin- 
following sources. Paris Museum on Tropistermu sp., South America, Nos. la and Is N 50 fron 
Mexico. Berlin Museum No. 1056 on T. "wnbrimu", Para. Dr. Sharp's Collection \o. 1 ISO on T 
No 
I'feuri 
San 
and 
external hunch which subtends the tip of the perithecium, and is usually bent in against the ba.se of t) 
appendage. 
Ceratomyces coxfitsus Thaxter. 
This species which is closely allied to C. mirabilvt, although much rarer, seems to be <|iiit> constant 
in its characters. It usually occurs near the tip of the abdomen on its right inferior margin. It has 
been found n.ca.in nn several Trnrrijtfprni in T.nWe FnstiV Florida. 
Ceratomyces ansatus now sp. Plate LXIX, figs. 4-5. 
Perithecium in general resembling that of C. confunu, larger, the anterior and posterior row of 
wall-cells consisting of about thirty-five cells, the anterior forming a slight ridge Ix-low the lip on the left 
side; the free tip shorter more broadly papillate, the perithecial ap|*mdage stouter, conspicuously inflated 
above its base, erect; the distal portion more or less strongly curved outward and sometimes ending in a 
few fine hyaline branches; the whole often sickle-shaped, its basal cell more or 1< s opaque strongly con- 
nve on its inner side. Receptacle as in C. omjums, but the blackened portion 1 (tending Dp beyond the 
base of the appendage and forming a free finger-like distally rounded projection, the appendage set U-- 
tween this and the base of the perithecium as in a socket. Appendage relatively small and narrow, usu- 
ally short and terminated by a tuft of slender hyaline branchlets. Total length to tip of perithi mm 125- 
475 fL Perithecium to tip 325-350 X 75-80 ft, its appendage 220 X 36 p. Rc« ■ pt 1e to tip of it> proj - 
tion and including foot 175-200 p. 
On Tropisternm sp., Museum of Comp. Zool., Xo. 1336 (Type) -an Fidelio, Brazil. On T. strio- 
lahu Lee., Eustis, Florida. 
This species which is closely allied to C. confwui and C. Fbridamu, appears to Ik- characteristic of 
the striped Tropishmi, and is found on the inferior surface of the abdomen on the left side. It seems 
