32 Messrs. Jones and Kirkby on Carboniferous Entomostraca. 
gard to this deposit, and which indeed induces me to make this 
communication, is the occurrence in it of water-worn remains of 
Iguanodon. Of this reptile I have obtained one of the phalanges, 
a worn tooth, vertebree, and one or two other fragments. The 
presence of these rolled fossils so far beyond the present area of 
the Wealden, coupled with the occurrence of numerous fragments 
of fossil wood strongly resembling that found in the Purbeck 
beds, seems to prove that, previously to the formation of this 
deposit, an extensive denudation of Wealden strata must have 
taken place in this district. 
IX.—WNotes on the Paleozoic Bivalved Entomostraca. No. VII. 
Some Carboniferous Species. By T. Rurerr Jonss, F.G.S., 
and James W. Kirxsy, sq. 
Wirtu the view of working out the characters and classification 
of the Bivalved Entomostraca of the Carboniferous Rocks, we 
have had to determine the specific value of the forms already 
published by paleontologists. In the ‘Annals and Mag. Nat. 
Hist.’ for May 1865 (ser. 3. vol. xv. p. 404, &c.) we gave the 
results of our examination of some Bavarian specimens (with 
which Dr. C. W. Giimbel obligingly favoured us), whereby we 
were enabled to determine Count Minster’s eight Carboniferous 
species—the oldest on our list, having been published in ‘ Leon- 
hard’s Jahrbuch’ for 1830. 
1793. Ure.—Before proceeding to discuss the species pub- 
lished subsequently to 1830, we have to notice some figured but 
unnamed. forms, well known to the students of Scottish geology, 
who have to refer to Ure’s ‘ History of Rutherglen and Hast 
Kilbride’ (8vo, 1793). In this work: the Rev. David Ure no- 
ticed the existence of certain “microscopic bivalved shells” 
(Entomostraca) in the Carboniferous Limestones near Glasgow, 
and supplied his friends with suites of these little fossils, toge- 
ther with minute Gasteropods; and tastily mounted sets, in 
glazed frames, are still preserved in the Hunterian Museum in 
the Royal College of Surgeons, London, and in the Museum of 
the Andersonian University, Glasgow. (See the very interesting 
‘ Biographical Notice of the Rev. David Ure,’ &c., by John Gray, 
8vo, Glasgow, 1865.) ‘‘ Both John Hunter and Dr. Anderson 
were friends of Ure; and as these microscopic fossils were found 
in Hunter’s native parish, they would be the more prized on 
that account.” (Mr. John Young, Lefter.) 
Four or five of the little EKntomostraca were figured and de- 
scribed by Ure in his ‘ History of Rutherglen,’ &. One of 
them (pl. 14. fig. 15), a subreniform Cythere (?), small, white, 
