THAXTER. — MONOGRAPH OF THE LABOI'LHIXI A( K.l . 300 
This species is distinguished by the very long curved nearly isodiametric n of its |>eritheeiiim, 
which is rather abruptly distinguished from the short broad truncate nearly i sod i a metric tip. The an- 
theridia are not numerous and rather crowded on the appendage, the terminal one spiniferous. l T ndcr 
a high magnification the venter of the perithecium is seen to be finely tran>verse-inm< late 
Stigmatomyces Baeri (Knoch) Peyritach. Plate XUX, figs. 22 21. 
Since the adult of this species has not as yet been properly figured, I have given two illustrations in 
the accompanying plates for comparison. The terminal antheridiuin appears to have arisen from the 
terminal cell by proliferation, as the latter bears the spine, where its presence lias been detennim d (fig. 
22). In older individuals the twist of the wall-cells is even more pronounced than is indicated in fig. 23, 
The form of the perithecium is somewhat similar to that of S. dubius, which is, liov ver, quite different 
an 
but have no doubt that it occurs here. 
SIX 1 
Stigmatomyces Sarcophagi Thaxter. Plate XL1X, figs. 14-17. 
Proc. Am. Acad. Arts and ScL, Vol. XM. p. 32.1 July, 1905. 
Normally long and slender. Color nearly uniform dull amber-brown, except the hyaline receptacle 
and the appendage above its basal cell. Venter of perithecium minutely transversa ly granular-si rial 
rather narrow, straight, the wall-cells prominent and slightly spiral ; the neck rather abruptly distinguished, 
the cells more or less spirally disposed, a rather distinct subterminal enlargement, above which the sub- 
conical tip ends in a blunt slightly oblique apex, the paired posterior lip-cells slightly prominent; tl 
basal cells small, somewhat prominent; the stalk-cell relatively lar<_ Hie receptacle normally \er 
elongate, hyaline, nearly isodiametric; the subbasal cell much longer than the basal. The appendage 
long, slender, recurved; its stalk-cell about two or three times as long as broad; the ba al cell more than 
twice as long as broad, the portion above it consisting of five superposed cells, and a terminal antheridiuin ; 
the total number of antheridia normally nine. Spores about 35 X 4 //. Venter of perithecium 7."» 90 
X 35-42 p., the neck 150 X 18-22 fi. Appendage, to edge of curvature, 110 p, the stalk-cell about 36 /<, 
the basal cell 18-20 /x. Receptacle 200-325 X 30 fx. Total length of larger individuals 600 /<■ 
In tufts on the abdomen of Sarcophaga sp., Island of Margarita, Venezuela; Dr. A. F. Bkkesl •. 
This large and fine species was obtained in great abundance on a black Sarcophaga collected in 
large numbers by Dr. Blakeslee by sweeping over a mud hole. I was at first inclined to think it identical 
with S. Livniophorce which is its nearest ally, but the appendages are constantly different and the general 
characters are sufficiently unlike in the two species, to warrant their separation, although they ue undoubt- 
edly closely allied. The position of the spiniferous cell in the mature appendage has not been observed. 
Stigmatomyces Ljmxophoile Thaxter. Plate XL1X, figs. 11-13. 
Proc. Am. Acad. Arts and ScL, Vol. XXXVI, p. 400. March, l«0t 
becom 
corr 
ridges which run somewhat obliquely and end, not abruptly, at the ba- of the neck: the fetter generally 
.slender, strongly bent throughout or even reeurved, abruptly differentiated, ■omettm. ... I,., diameter 
than the tip, which is distinguished from the rest of the neck by an abrupt enlar-menl -non- pronm„nt 
anteriorly; the apex (in the not wholly mature types) unmodified, Wum\ : a W i f^ ^•" r ~ n " f 
the append 
which nearly equals it in length 
ibruptly be! 
base hvalin 
is dark amber-brown above, becoming gradually thicker, so that the lumen of the cell I is attenuated beta . 
distally bearing two 
umber 
l>elow it bearin 
wardly recurved, the terminal cell apparently sterile, tne n\o Miian «» ~*~ - — * - 
antheridiuin, while the remainder bear two; the antheridia with short, broad, slightly recurved neck*. 
