Clifton College Scientific Society. 93 



The Ichtliyosanrus or fish lizard is not confined to the Lias 

 but xs found in aU the formations of the secondary epoch it 

 s evident from their paddles (long tails resemoliLThos; of 



jarsThr^that th^^^^ ^^^^^^^^ theirietHnd 



jaws snow that they were canuvorous ; and the half-dio-ested 



Sr food "^ "^'^" ''"'^' '^'''''^'^ -^^-^^ '^^ -tu- ^f 



v^^®on^^^^ f^® '^ ^^'° remarkable. I have seen onP nt 



2otet %t T' T^ *^^.— 8-e of spedmens" abo^ 

 20 feet. JSTearly twelve species have been found 



One was found at Whitby about 5 feet lon^ with i^.. 



greater part of the skin remaining, which is af^rtrenaev 



valuable^discovery, helping materiafly to decide Ihei^'Sut 



iZXT^^e^trZ: S ^^?,St--' of which 

 remarkabl for its l^ngrpaSll^^o^" l/ir^nLl^^^^^^ 

 specimens consisting of twenty-nineSertebr!^ and smSl 

 bead; It is supposed to have lurked in the weSi\rd Xnts 

 of the Liassic sea, and to have darted out its W neck to 

 seize passing ammals, whereas the Ichthyosaui must have 



I knZ'' V^ ^'^'*' f \"^"^^- THe grea'testlen" h wS 

 1 know a Plesiosaur to have attained to is 24 feet \Zlhl 

 average is 15 or 16 feet. It has been lone, agreed that these 



t^l^^ilf^SltrTai^^^^^^^^^ 



was anEnaWui, siSce the aT^iSis IZ^^ot^L^^X^l 



brackish and salt waters near the river's mouth. ^ *^' 



which served to ralsfo^^lepi-is't^^^ fin ^""^ ^^^'"^^^ "^^^^^^^' 



One of the most interesting and wonderful featurp. c.f +1.0 



Lias IS the remarkable preservation in whTch the remains ar^ 



again is 



