882 General Notes. : [August, : 
specimen, the attitude not however being a natural one. Its color 
was black-brown. The figure represents the specimen magnified 
about three times. It had twenty-six pairs of feet. It may prove 
to be distinct from the South American edwardsii or the West 
Indian juliformis—A. S. Packard, Fr. 
THE STRUCTURE AND EmsBryo.ocy oF Peripatus.—This link 
between the worms and tracheate Arthropods has received much 
attention of late, owing to the recent elaborate account of it by 
Moseley, who brought from the Cape of Good Hope an abundance 
of alcoholic specimens. The late Professor Balfour was engaged 
just before his death in investigating the structure and embryol- 
ogy of Peripatus capensis, with the view of publishing a complete 
monograph of the genus. His drawings and notes have been 
edited by Messrs. Moseley and Sedgwick, who publish them, with 
an account of the external characters, generative organs and 
velopment, prepared by themselves, in the Quarterly Journal of 
Microscopical Science for April; it is a most important contribu- 
tion to our knowledge of this interesting form. The drawings 
are upon a large scale and materially assist in making the subject 
clear. We will glean some extracts of more general interest 
from the paper, as bearing both upon the generalized nature of 
podat m 
ner, to subserve mastication. * * * They are pe f 
short papillæ, moved by an elaborate and powerful syste ae 
muscles, which are armed at their free extremities by 4 p tial 
points, similar to the claws borne by the feet, and n- 
formed as thickenings of the cuticle. They have therefore ess% 
tially the characters of the claws and jaws of the Arthr eee the 
are wholly dissimilar to the seta of Chatopoda. rest satisfy 
figures nor descriptions of the present paper would entirely Satin"? 
f r by 
1 Although this mass is called a tongue, it would appear to us, judging 5o fim 
Figs. 5 and 7, to correspond rather to the membranous upper lip wy r of the buc- 
ulus and Phyllopod Crustacea; the tongue in insects rests upon si gree above the 
cal cavity, while this is represented as situated in advance of and ra 
jaws. Compare also Balfour’s Embryology, p. 317.—4- S. 
