PLATE XXVIII. 
Ichthyosaurus. 
Fig. 
1. Restoration with skeleton and included foetus {Ich. communis) 
2. Skull, side view {Ich. acutirostris). 
3. Ib.j ib. {Ich. longirostris) . 
4. Scapular arches and humeri {Ich. communis). 
(These figures are more or less reduced.) 
5. Slab of Lias, with bones and part of tegumentary sheath of hind fin, nat. size {Ich. 
communis ?). 
