12 
tubercle which replaces it in some groups, are the organs con- 
cerned. Contrary to previous statements, the “combs” of the 
chelicerze have nothing to do with the silk. The manner in 
which the nests are built and spun was described in detail. The 
spinning was associated with forward and backward movements 
of the body and with lateral movements of the chelicere ; and 
the silk issued from the galea or tubercle in several viscid, very 
fine threads. The methods of three species, representing both 
main divisions of Pseudoscorpiones, were observed; and, being 
essentially identical, were believed to be characteristic of the 
order. 
Mr. H. R. Hoae, M.A., F.Z.8., read a paper on a collection of 
Spiders made by Mr. P. D. Montague, of Caius College, Cambridge, 
supplemented by a few specimens sent by Mr. T. H. Haynes 
from the Montebello Islands off Onslow, on the N.W. Coast of 
Australia. 
These islands, from geological evidence, were part of the old 
coast-line, though now about 90 miles away. Although the 
larger specimens are mostly widely spread and possibly more or 
less recent importations, the smaller are nearly all new species, 
showing evidence of a much longer separation from their con- 
generic relations on the mainland. 
Out of seventeen species ten are new, as well as a new genus 
and two new varieties. 
Mr. D. M.S. Watson, M.Se., F.Z.S., gave an account of his 
paper on “ The Skull of a Pariasaurian Reptile and the Relation- 
ships of that Type.” The skull of Pariasaurus is completely 
described therein, with the exception of the bony labyrinth of 
the ear. It is compared with all the members of the Order 
Cotylosauria which are well enough known to make a comparison 
of any value, and shown to differ in the very important characters 
of the brain-case from all of them, representing an entirely 
distinct branch. 
The characters of the various orders of the superorder Thera- 
psida are then detailed and the characteristics of the superorder 
deduced from their comparison ; Pariasaurus is shown to possess 
none of them, and hence to be quite unconnected with their 
ancestry. 
A sphenethmoid is recognised in Pariasaurus for the first time 
in any reptile, and the homologies and distinguishing features of 
the single temporal bone, the squamosal, are discussed. 
Mr. F. J. Mecairr, M.Sc., contributed a paper, communicated 
by Prof. F. W. Gamste, F.R.8., F.Z.8., containing a description of 
a Tapeworm parasitic in the Stickleback (Gasterosteus aculeatus), 
with an account of its anatomy and histology, and its life- 
history. 
