186 Geological Society. 



water tertiary beds at the Promontory of Karabournou. Supposing 

 them to have been derived from other parts than the anterior fourth 

 part of the trunk, they resemble in the length of the hypapophysis 

 the vertebrae of Crotalus, Vipera, and Natrix ; which they also re- 

 semble in the presence of a process developed from both the upper 

 and lower part of the diapophysis. The results of a minute compa- 

 rison of all the parts of the complex vertebrae of ophidian reptiles 

 were given, which rendered it probable that the Salonica fossil ser- 

 pent resembled those genera in which the hypapophysis is well de- 

 veloped from all the trunk vertebrae : the breadth of the base of the 

 neural arch indicates that they have been from about the middle of 

 the trunk. They offer so many points of resemblance with those of 

 the Rattlesnake and Viper, that they may have belonged to a venom- 

 ous species, but they are specifically distinct from those existing 

 serpents : they differ generically and in a very marked degree from 

 the veitebrae of the great constricting serpents {Python and Boa), as 

 well as from the large fossil serpent (Palceophis) of the Eocene Tertiary 

 formations. A summary of the known existing serpents of Southern 

 Europe and Asia Minor was given, showing that none of the living spe- 

 cies equal in bulk the fossil serpent. " A classical myth embalmed in 

 the verse of Virgil and embodied in the marble of the Laocoon would 

 indicate a familiarity in the minds of the ancient colonists of Greece 

 with the idea at least of large serpents. But according to actual 

 knowledge, and the positive records of zoology, the serpent between 

 10 and 12 feet in length from the tertiary strata of Salonica must 

 be deemed an extinct species." For this fossil Professor Owen pro- 

 posed the name of Laophis crotalo'ides. 



3. " On some additional Cambrian Fossils from the Longmynd." 

 By J. W. Salter, Esq., F.G.S. 



In March 1856 Mr. Salter communicated the discovery of traces 

 of Annelides and probable fragments of a Trilobite, accompanied by 

 ripple-marks, in the sandstone-beds of the eastern part of the Long- 

 mynd. During the last summer he collected many more materials 

 for the elucidation of the palaeontology of the Longmynd rocks ; and 

 in the present paper described the occurrence of abundant annelide 

 markings, referable to two species (one of them new), throughout 

 a mile of thickness in the lower portion of the nearly vertical shales, 

 sandstones, and flagstones of the Longmynd, from Church Stretton 

 to the Portway. 



Wave- or surf-marks, ripples, sun-cracks, and rain-prints were 

 also described as occurring at several localities on the surfaces of 

 these laminated rocks of the Longmynd. 



Arenicolites sparsus was proposed as the name for the new species 

 of double worm-hole above alluded to. Mr. Salter also adverted to 

 the discovery of numerous vertical worm-tubes in the quartz rock of 

 the Stiper Stones. These he believes to be the same as the Scolithus 

 linearis of Hall, found in the Potsdam sandstone of North America. 



He proposes the term Arenicolites for all fossil worm -holes with 

 double openings, and Helminthites for the superficial trails. 



