56 Proceedings of the 



5. Mr Page next exhibited some new Crustacean Forms from the Forfar 

 flagstones, or base of the Old Red Sandstone in Scotland. 



The first of these forms presented a remarkable union of phyllopod and 

 isopod characters ; was a small creature found in shoals among the frag- 

 ments of fucoid or aquatic plants ; and, from its curious caterpillar-like 

 aspect, he proposed to name it provisionally Kampecaris Forfarensis, The 

 second was a larger and still more remarkable form, presenting phyllopod, 

 pcecilipod, and xiphosarus characters. To the head of a eurypterus was 

 united the body of a lobster, and to this lobster-like body was attached 

 the sword-like tail of a king-crab. Its organs of motion were a pair, on 

 each side, of long-jointed arms ; and from fragments found on the slabs, 

 it appeared to be furnished with minutely serrated jaw-feet, like the king- 

 crab and fossil Pterygotus. This fossil appeared to be quite new to Palae- 

 ontology ; and Mr Page proposed to name it provisionally Stylonarus 

 Powriensis, in allusion to its style-shaped tail, and after its discoverer, 

 Mr Powrie of Reswallie. A third form which Mr Page exhibited was 

 from the shaly mudstones of Upper Lanark, a series of strata apparently 

 on a somewhat different horizon, but containing, like the Forfarshire beds, 

 pterygotus, eurypterus, and other undescribed Crustacea. This form Mr 

 Page proposed to erect into a new family (Slimonia, after the discoverer 

 of these Lanark Crustacea) ; but as he intended to bring the subject be- 

 fore the next meeting of the Society, in conjunction with what was now 

 being done in London by Messrs Salter and Huxley, he would not dwell 

 longer on these new discoveries than merely remark — first, that they 

 opened up altogether new views of crustacean affinities and arrangements ; 

 and, second, that their discovery established in Britain a great zone of 

 crustacean life, either on the upper verge of Siluria or on the lower 

 verge of Devonia, hitherto unknown to geology. 



On the motion of the Secretary, a vote of thanks was unanimously given 

 to Mr Page for his interesting communications and exhibition of new and 

 curious fossils. 



6. On recent Discoveries in Helrninthology . By James Wardkop, Esq. 



Mr Wardrop gave a resume of all that was known on this interesting 

 and difficult subject. 



