212 Bnnict : Xolcs on the L'ppcr ilutlk of Lincolnshire. 



think that your two specimens of Infuldslcr can be specifically 

 separated from one another or from any of our museum 

 examples. The specimen from Acthorpe is less than half the 

 size of either of yours ; it is relatively more flattened and less 

 elevated, less stronj^ly carinated, and its anteal profile shows a 

 j^-reater convexity of outline. But we have a cast of a much 

 larg-er specimen labelled ' Upper Chalk, Swaflfliam,' and the 

 differences between this, your Limber specimen, and an 

 extreme form such as }our Yorkshire example, are only 

 differences of dei^ree.' 



No spons^es have yet been foimd in these beds in Lincoln- 

 shire. The only coral foiuid was Pdnisniilia coitralis. 



The following' is, so far as I know, a complete list of the 

 fossils recorded from these beds. 



* Fossils obtained by the Geolos^ical Survey. 



t ,, ,, ' Mr. W. Hill. 



\ ,, ,, the Louth Naturalists' Society. 



Il 5 5 5, m\-self. 



X Exogyra sp. 



* I Inocerauius broniriiiarti Sow. 



* I! ,, cuvieri Sow. 



* ,, digilutiis Sow. 



,, sp. (an unnamed 



species). 

 II Modiola cot to: = Scptifcr lineal us 



Sow. 

 11 Ostrca itoniuinitDKi (I'Orb. 

 II ,, vestcularis Lam. 

 II ,, (a small species). 

 II Plicatida sigilUna S. P. W'oodw. 

 II Spondyhis latiis Sow. 

 t + ! Kingena lima Defr. 

 I! RhynrlwueUa cuvieri d'Orb. 



* II ,, limha/a Schloth. 



II ,, />/ita/ilis, \iiv. octo- 



plicnta Sow. 

 i II ,, rccdeitsis Ktli. 



i| Terrhrafiila carnea Sow. 



,, son iglobosa Sow. 



X il Tcrchnitulina lata Eth. 

 11 ,, striata Wahl. 



li Serpula (two species). 

 Cidaris pcrornata Forbes. 



! ,, sceptrifeni Mant. 

 I' ,, sp. 



I Cyp/iosonia sp. 



*? t Echinocorys scitlatus Leskc. 



* (ialerites globulus Desor. 

 Holaster placenta \^. 



\ ,, planus Mant. 



* il Infulasier excentricus Rose. 

 '! Micraster corbovis Forbes. 



,, corlestudinarium Coldf. 



I ,, leskei Desm. 



/'arasni ilia centralis Mant. 

 ' U ippdhea elegans d'Orb. 



In conclusion 1 wish to express my very sincere thanks to 

 Mr. W. Hill, .Mr. .\. J. Jukes-Browne, Dr. F. L. Kitchin, and 

 Dr. Rowi- (who has enabled me to make se\ eral corrections to 

 the list published in the Gcol. Mail.) *«>'' ''i'" \;ilual)li- help which 

 they have so kindly given to me. 



1 am also indebted to Mr. Hill for the follow ing notes on 

 two thin secti(jns from these beds, and lo Mr. A. 1".. Holt lor 

 the micro-photograj^hs in illustration. 



Naluralisi, 



