204 _ General Notes. [ February, 
h 
even length; 6th (terminal) two-thirds as long as the sth and 
nearly as long in proportion as the terminal joint in N. trogle- 
dytes Pack.; it is very setose, and the tip is rounded. | 
Legs of the 2d pair 3™™ in length, hairy, last tarsal joint vat 
divided ; 4th pair 4™™ in length; the last tarsal joint with nine 
subjoints, and the claws smaller than in the 2d pair. 
Length of the body, including the chelicere, 1™ Bat cave 
Carter Co., Ky. Two immature specimens, but the species ^ 
very characteristic, and this is the first occurrence of the gen 
east of the Great Basin. 
VENTRAL REPUGNATORIAL ORGAN IN CENTIPEDES (Gropa 
—The gland which emits a red liquid by certain disks in 
to long ducts, each of which leads from a long pyriform oe 
which is very thin, contains a number of smooth p i 
fibers which ramify, anastomose, and form a reticulum, ois, and 
connected similarly with those of the neighboring 87)". 
hich 
5 evi 
very often exhibit a succession of slight inflations, ani expt 
dently contractile and intended to compress the gland 
the contents. The system of glands belonging to a “s and 
Surrounded by adipose cells, and it is innervated by et 
branches derived from the anterior nerve of the pa! ee ; the 
given off on each side by the ganglion of the the malt 
trachez belong to a branch which comes direct from 
trunk. | jy in the 
The liquid contained in the gland coagulates prom is sol 
air, has an acid reaction and taste, and irritates the pe s actiot 
uble in water and alcohol, and becomes whitish unor ae pe 
of caustic potash; the coagulum shows, under the m! h geneal 
amorphous mass containing elongated crystals, wie is sho 
form rosettes about 0.14™ in maximum diameter ; an only diret 
ats composition to be analogous to that of silk. The 
