114 Proceedings of the Royal Physical Society. 



In 1885 Whitfield described another Upper Silurian 

 Scorpion, Proscorpius Oshorni, from Waterville, near New 

 York.^ At the same time as the announcement of the find 

 of the Gothland and Scottish Scorpions (1884), the discovery 

 of the remains of the wing of a Cockroach from the Middle 

 Silurian rocks of Calvados was announced in France. This 

 was described under the name of Palceohlattina Duvillei, 

 Brongniart; but there seems to be some doubt about the 

 exact nature of the specimen. If the determination be 

 correct, this has the honour of being the oldest described 

 air-breather.2 



While following up a discovery made by the Geological 

 Survey in 1896, of fish remains in the passage beds between 

 the Silurian and Old Eed Sandstone rocks of Lesmahagow, 

 Messrs Macconochie and Tait, Fossil Collectors to the 

 Geological Survey of Scotland, last year (1897) found a 

 fragment of a Myriapod in the Upper Silurian rocks of that 

 district, at the same locality, and in the same beds as those 

 from which the above - mentioned specimen of Scorpion, 

 Palceophonus caledonicus, was obtained. This discovery 

 throws back the history of the Myriapoda, so that they now 

 seem to rival the Arachnida in antiquity. 



The primary object of this part of my paper is to describe 

 the remains of a finely preserved Myriapod from the Lower 

 Carboniferous rocks of East Kilbride, now in the Museum of 

 Science and Art, Edinburgh. The history of the discovery 

 of this specimen is as follows : — About ten years ago, the 

 late Mr Coutts brought me some remains, which he took to 

 be those of Schizopod Crustaceans, and which the late Mr 

 Patton, the indefatigable collector of the fossils of the 

 " Hosies Limestone " of East Kilbride, had obtained from 

 that seam. Among these I found the remains of a Myriapod, 

 which, after being developed, proved to be the head and 

 nine body-rings, in fine preservation, of a new form belonging 



^ R. p. Whitfield, "An American Scorpion," Science, vol. vi. p. 87, 1885. 



2 Since the reading of the present paper, Professor Malcolm Lawrie has 

 described before the Royal Society of Edinburgh the remains of a third species 

 of Palceophonus, from the Wenlock rocks of the Pentland Hills, which he 

 found in the Hardie Collection, in the Museum of Science and Art, Edinburgh, 



