No. 4.] ,' nil. LINOS — ON FOSSILS. - 231 



irro<i;ul«r ridi^os abovo iiie:)tinnotl. I jiropose tu cull it Aul mijn'im, 

 and Hhall, Iienr iltor, with .uMitioaal mjiteri;il. ondoavour to givo 

 a niori! detailed Jiccourit of it. 



I sliall df (licit*- thn only species known to mo, to itadiHOoveror, 

 Major Clias. Coote Grant, II. V. lOtli U.'trt. I^^ot. 



1. A. (^it\NTt. — Oin' of tilt! spocime )>* * 1(» lines in K'njrth 

 and 12 lines in wi.jtli about, the middk'. T! o osculiun is a little 

 over two lines in widili. There are in •_'( ,ior,il front ;') to {) striio 

 or rid-o- on it.- .enrfacc in the width of o lines, Thc-'e radiate 

 from iIk- oscuIuiii and eontinne down to tlie ha.-e. .<o th.it the 

 whole surface is covered with thoni. The .^pceinu'ti is .<oini'what 

 coniprecsod, so thit a fansverde seetlon tlironirh the mid l.'iif^th 

 wonid bo a somcwli it irreirular idlipH<\ the greater avi«* 12 lintis, 

 as triven above, and the lower f) line-. 



The second spoeinien is also som",what compressed, and is 

 olon;rite-ovat.i'. pr iportionately more slender than the former. 

 lien;rih 14 lines; greater di.-aii.'t.-r at the niMdle S lines; 

 lesser diameter (i li»ies; diameter of tiio osciilnm 2 lines. There 

 are (i to 8 sti-ije in the width of 3 lines, and they cover the whole 



Slllfice. j»i: 



The tliird .-peciiuen shows only the s»immit of a large indivi- 

 dual, 'i'he dii>n't,T is 14 lines; width of the oseulum 2 liin'S ; 

 there arc from t{ to H ndges in the width of .'{ lines. The ccni- 

 tral portiitn is concave, the oseulum being sit;i;;ted in the l)ottom 

 of the cone iviiy. 



A fourth speim mi. a fragment, has a diameter of 2 inches at 

 the summit; tli>' o,>(.uluni 4 lines wide. 



Occurs iu tlie Ni.gar.i form ition at llimllton. 



II 



hK VON TAN. 



The Dcviinim fos-iis. (le<cribed in this paper, having been all 

 •collected within a liiuiled urci in Ont irio. \ shall not give the 

 loedities after each Hpecies, but ouly njentiou here that all the 

 CorniferouH species are froin the Counties of llaldimand, Wel- 

 land, and Oxford. The spe* ios of the Hamilton formation are 

 from the Township of Ijosaiitjuet. .. .^ ^ , 



The internal straetiire of lln^ coral.-. wa« ascertaiiu'd prinei- 

 p.dly from polish. 'd sections, ^killfully pn|>arod by Mr. T. 0. 

 • Weston, the L ipid.iry of the Survey. 



