BRUES: A NEW PERIPATUS FROM COLOMBIA. 381 
two animals were in contact when taken. On the trail toward 
Minca below the Plantation in forest. Log exposed to full rays 
of sun. Altitude about 2,100 feet. July 24, 1913. 
172. Three Peripatus, same locality as last, one under the bark of a 
log, two in cavities made by beetles in log. 
179. Peripatus under log in forest southwest of the Plantation. Alti- 
tude about 2,200 feet. July 25, 1913. 
Locomotion. ‘They crawl backward as well as forward, and may 
use one, two, three, four, five, or six pairs of legs at the anterior end 
alternately, but may use all pairs of legs together. I placed several 
in a big white developing tray. They often crawled away from the 
light, though they frequently went toward it, or without reference to 
it. Often when they came to the edge of the dish, or sometimes when 
a card was held between them and the light, they raised the anterior 
end and waved it about. The last or last two pairs of legs are usually 
not used in walking but are held quiet above the substratum upon 
which the animal moves. Often the first three pairs of legs are thus 
held immobile. 
I put Nos. 58 and 50 (large) in a vial with a beetle larva, a silver fish, 
ndamilliped. Although these crawled over the Peripatus it did not 
shoot out any white threads. I pinched No. 50 (small); it turned its 
nterior end and shot out a colorless secretion which stuck to the 
oreeps and fastened the myriopod to the tray so that it could not 
escape. I pinched No. 50 (large), and it gave out a colorless, rather 
viseid secretion from two ventral lateral papillae on the under side of 
the head. This secretion fastened the beetle larva to the bottom of 
he tray, but it soon hardened so that it was not sticky. I pinched it 
gain. The head was turned back and the secretion shot out for a 
listance of about 2 cm. It formed a reticulate network on the back 
ot the Peripatus and stuck it to my forceps. The Peripatus was 
nable to free itself from the forceps for an hour, when I released it. 
On a later day I squeezed a Peripatus and induced it to throw 
‘hreads from the bases of several of the legs behind the head. 
Note on a Collection of Peripatus from Trinidad and Grenada. Dur- 
NB a visit to Grenada and Trinidad during the winter of 1912-13, Prof. 
toland Thaxter secured a very extensive collection of Peripatus from 
ese islands, which he has given to the Museum of Comparative 
oblogy. Though unsuccessful in collecting further specimens of 
’eripatus barbouri Brues, a species peculiar to the high portion of 
‘renada, he obtained a single small specimen, (M. C. Z. No. 199), of 
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