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to my former division into 2 families); these sub-orders 
are again divided into families, sub-families, genera and 
sub-genera. I shall for the rest refer the reader to his 
system and to his reasons for it (Voy. d. M. E. Simon 
p. 501—5), adding, however, that I do not agree with 
him as to his further division, to which I shall come 
back, and it seems to me that of more essential generic 
characters, not used by Simon, he has only produced 
one, viz., the serrula. Croneberg and Bertkau (op. 
eit.; I have found no reason to quote Croneberg’s 
preliminary paper) have almost simultaneously pointed 
out large glands situated in front in the cephalothorax, 
with the ducts opening at the apex of the 2d joint of 
the mandibles, and they believed them to be most likely 
spinning-glands. It is certainly correct; it ought to be 
examined, however, if the animals actuallv do spin with 
these organs. In Zoolog. Dan. I have followed Menge 
and interpreted the remarkable hairs, arranged in a row 
along the median anterior edge of abdomen in Chelifer, 
as spinning-taps, but a new and more minute investiga- 
tion has convinced me that my supposition was wrong; 
concerning the other forms (as ÖObisium) I have con- 
tented myself in this popular paper with an indirect 
quotation of Menge. The matter is mentioned here 
because the interpretation of the 2 authors is of impor- 
tance as to the understanding of the practical systematic 
character, taken from the existence or not-existence of 
»galea«. 
(I may perhaps here put in a remark. I have very 
carefully examined the supposed place of disembogue- 
ment for the spinning-glands in Obisium muscorum. 
the result has, however, not been satisfactory. No single 
aperture is found on the foremost, exterior portion of 
the movable finger; on the contrarv, I have found 6 verv 
small apertures situated in 2 rows which take an 
