312 THAXTER. — MONOGRAPH OF THE LABOULBENIACE^. 
lightly divergent projections of the anterior lip-cells; the basal cells forming a short, stout stalk, sepa- 
rated from the stalk-cell by an oblique septum. Appendage relatively small, resembling that of the S. 
form 
y be obsolete between the lower ones. Receptacle relatively short, the cells 
sulx qua], yellowish. Spores about 20 X 2 fi. Perithecium: venter 50-55 X 40 p; the neck 90-290 X 
20 "; I he stalk 35-45 X 33-36 a. Appendage, 35-45 u, the stalk-cell 22-30 X 14-17 /i. Receptacle 
"". "L-7 > 
00 n ft. iota I Jcng 
Total length to tip of perithecium 400-485 fi. A few specimens on the legs much smaller. 
( )n three small flies of different species allied to Limosina. Ralum, New Pomerania. 
This species may prove a regional variety of S. Limosince, the appendage, though much smaller, and 
never well developed, being nevertheless of the same peculiar irregularly proliferous type, not seen in any 
other species. It differs chiefly in the bulbous venter of its perithecium, which passes distally into the 
enormously developed elongate neck and tip. 
ARTHRORHYNCHUS Kolenati. 
The original name given to this genus in 1857 by Kolenati is here retained in preference to the much 
later one applied to it by Peyritsch, who redescribed it as H elminthophana in 1873; since, however absurd 
and scientifically worthless the original zoological descriptions of these forms may be, there has never 
I »een the slightest question as to the generic identity of the organisms studied by these two authors. Neither 
the descriptions nor the figures given by Kolenati and Diesing are, however, sufficient to render a specific 
determination possible, so that the name given by Peyritsch to the European species of the genus, although 
Westrumbii 
properly be retained. 
The three species 
rhizoida! apparatus, which penetrates the soft body-cavity of the host, and arises from a slightly swollen 
extension of the basal cell. From this intrusion is produced a mass of copiously branching hyaline fila- 
ments, which become interlaced in a mass so dense that the course of individual filaments cannot be 
followed in detail. This condition is barely suggested in Plate X.LVIII, fig. 2, in which a few of the branches 
are approximately indicated. 
The genus is undoubtedly very closely related to Stigmatomyces, differing in the relative development 
of the perithecium and receptacle, as well as in its antheridial appendage. The antheridia, although in 
>pod 
appendag 
The modifications of the 
basal and stalk-cells of these appendages in A. Cydopod'uz and A. Eucampsipodce are very peculiar, and 
the curious thickenings which are also well marked in the basal cell of the appendage proper of some 
gmwk* of Stigmatomyces, are especially noticeable in the first mentioned species. This peculiar structure 
species 
turned 
away from the perithecium at maturity. As in many species of Stigmatomyces the terminal antheridium 
is armed with a stout spine. 
There appears to be but a single ascogenie cell in all three species which is very 
omyces 
ous asci 
which arise from it in several vertical rows, instead of in two, as is more commonly the condition. This 
is clearly shown m fig. 11, in which a posterior view of the aseus-mass is given, figs. 1 and 7 showing 
lateral views of similar masses, and their relation to the ascogenie cells. 
Spe 
cal distribution of the genus 1 1 elminthophana, of the'hosfc 
fori 
species 
Nycteribice has been 
Cychpodia macmra Speiser are A. Cyctopodia 
The 
