446 



A. G. Butler — On a Fossil Butterfly. 



PLATE XVII. 



Fig. I, 1(7. 



Leda dara. Fig 



6. 



Naticina regia. 



,, 2a, lb 



. Hyalcea Vendryesiana. ,, 



7- 



Plicatula vexillata. 



,, 3- 



Con 



is consobrintis. 



8. 



Venus Bla7tdiana. 



„ 4- 



Cancellaria scalatella. ,, 



9- 



Conus prototypus. 



„ 5«) b> 



c. Chama involuta. 







Sa. 



exterior of left valve. 







Sb. 



interior of left valve. 







S^- 



exterior of right valve. 











PLATE XVIII 





Fig, I. 



Conus prototypus 





Miocene, Trinidad. 





, 2. 



Scalaria Leroyi 





?? )5 





, 3- 



Ctipularia calyxglandis 





Eocene Trinidad. 





, 4- 



Crucibulum sicbsutum 





Pliocene, ,, 





, 5- 



Turritella planigyrata 





Miocene, ,, 





, 6. 



Mangelia micropleztra 





Pliocene, ,, 





, 7- 



Nucula baccata 





" 9 1 





, 8. 



victa 





55 5 J- 





, 9- 



J.eda perlepida 





j> )> 





, lO. 



Donax fahagelloides 





? J ) J- 





, II. 



Aclis helecteroides 









, 12. 



Vermetus trilineatus 





)5 J > 



1 ; 



, 13- 



Planaxis crassilabi'um 





J) J> 





, 14- 



Sola ri7im sem idecussatii m 









, IS- 



Tnrbonilla turris 





? 9 7 9 





, i6. 



Leiostraca clavata 



• 



,9 ,, 





, 17- 



Trochus plicomphalus 





>5 >> 





, i8. 



decipiens 





)5 ?> 





, 19. 

 , 20. 







Colnmbella pecidiaris 





titj ,, ,, 





, 21. 



Vitrinella marginata 





)> J> 





, 22. 



Cylichna ovumlacerti 





Eocene, ,, 





, 23. 



Area centrota 





Pliocene, ,, 





, 24. 



Pecten Angtdllensis 





Miocene, Auguilla. 





, 25. 



Pentacrinus rotularis 





Eocene, Trinidad. 





, 26. 



obtusus 





J J 9 J 





, 27. 



Triforis guttata 





Pliocene, ,, 



11. — Notes on the Impression of Paljeontina oolitica in the 



Jermyn Street Museum. 



By A. G. BuTLEB, F.L.S., F.Z.S., etc. 



of the British Museum. 



(PLATE XIX.) 



IT will be remembered that, in the Geological Magazine for 1873, 

 Vol. X. p. 2, PI. I. Figs. 1, 2, I described a fossil Butterfly from 

 the Stonesfield Slate under the name oi Paloeontina oolitica; the type 

 was in the possession of Mr. E. Charlesworth, who subsequently dis- 

 covered that the twin impression had been obtained by Mr. J. W. 

 Judd, F.G.S., who presented it to the Museum of Practical Geology, 

 Jermyn Street. 



Soon after the publication of my paper, my friend Mr. Samuel 

 Scudder, of Boston, U.S. (who has long taken great interest in fossil 

 insects, especially Lepidoptera), wrote me a letter, from which I 

 subjoin an extract : — 



" While in England, I studied the original of your fossil butterfly, 

 and also of its reverse in the Museum of the School of Mines. I 



