The Tertiary beds cover the greater part of the island of Cyprus and their general distribution is shown in Bellamy's map published in 1905, while their characters and relations have been described with a certain amount of detail in Bellamy and Jukes-Browne's memoir on The Geology of Cyprus (1). Since then Philippson (37) has given a useful summary of our knowledge of the geology of the island with references to the literature up to the year 1918, and Cullis and Edge (38), though principally concerned with the igneous rocks, have more recently published a revised map with a summary of the Tertiary beds. But much work is still required before an adequate knowledge of them is obtained. The division into Eocene (Lapithos beds), Kythrean (Oligocene?), Idalian (Miocene) and Pliocene + Pleistocene Series as adopted in Bellamy's memoir, is convenient for a rough local classification of the beds. But the grouping of the Pliocene with the Pleistocene was obviously done owing to insufficient knowledge, and further subdivision of the series is undoubtedly necessary. Bellamy followed Gaudry (3) in regarding the Pliocene beds of the Carpas as representing an older stage than those of the central and southern districts. Russell (2) had previously recognized a lower series in the central valley which he called the Nicosia beds containing very abundant fossils, and an upper series which he termed the Kerynia Rock, comprising a yellow calcareous sandstone which furnishes most of the building stone in the island.

In Connemara and South Mayo, three main rock groups have been distinguished. The first group, largely developed in South Mayo (see sketch-map), consists of slates, phyllites, grits, conglomerates and thin limestones, and, although these rocks are much cleaved, sufficient fossils have been found to prove that they vary in age from Arenig to Ludlow. The second group of rocks, occurring principally in northern Connemara, consists essentially of quartzites, limestones and schists, and in this group fossils have not been found. In the pelitic schists of this group, biotite, garnet, staurolite and fibrous sillimanite are of widespread occurrence, proving that the group as a whole is in a state of medium to high grade regional metamorphism. We propose that the term Connemara Schists, which has previously only been used vaguely, should be restricted to this group. The third group, occurring in Southern Connemara, is a gneissic series which was tentatively correlated with the Lewisian Gneiss by early workers, and which is indeed remarkably similar to it in general appearance. Later work by Callaway (1887) and McHenry (1903) has, however, shown that these gneisses are not overlain unconformably by the Connemara schists, but are orthogneisses intrusive into them. Their age, therefore, relative to the Connemara Schists, is not in doubt.

In 1928 the Trustees of the British Museum purchased for the Geological Department the skeleton of a large Ichthyosaur then being prepared in the workshop of Dr. B. Hauff in Holzmaden. During its preparation the skeleton was, with the permission of the Department, studied by Professor F. von Huene, of Tübingen, who subsequently published and adequate description and figure of it, and who reached the conclusion that it was probably a new species. Since I consider that the specimen is undoubtedly different from the others so far described as Eurhinosaurus longirostris I propose here to review briefly its main characteristics under a new specific name. As von Huene has done the most important work on the genus it is with great pleasure that I name this new species in his honour.