TEREBRATULA. 9 



with well-marked lateral ridges in either valve, continued along the sides without incurving 

 to join the hinge and lateral margins, and leaving a concave, subparallel space between 

 them and the hinge-line; foramen minute, completed by a deltidiuni; surface smooth. 

 Dimensions variable; length 12, width 13, depth 5 lines. 



05s. Of this species I have seen three or four examples derived from the Middle 

 Devonian limestone of Lane's or Woolborough quarry, near Newton Abbot, in Devonshire ; l 

 but, from, not having been able to examine its internal dispositions, I am uncertain as to its 

 genus, and have, therefore, provisionally located it under Terebratula. In external shape, 

 T. Newtoniensis bears much resemblance to the Jurassic Waldheimia numismalis ; but it 

 might perhaps belong to Prof. Sness's sub-genus Meganteris. The thickening or emargina- 

 tion of the valves is very great in some specimens, reminding us of what is sometimes seen 

 in Terebratula carinata. One large example in the collection of Mr. Vicary came to hand 

 too late to be figured in its proper place. 



T. Neioloniensis occurs also in the Devonian limestone of Nehou in France, from 

 whence I obtained two examples. 



1 Mr. Pengelly informs me that there are various limestone-quarries, all more or less good fossil- 

 localities, in the neighbourhood of Newton Abbot (Newton really consists of two towns, Newton Abbot 

 and Newton Bushell, separated by a small stream), namely, Woolborough, Ramsleigh, Ogwell (2 or 3), 

 Bradley (2), and all spoken of by strangers, and even by resident collectors, under the common term 

 "Newton ;" it is therefore desirable, where possible, to mention the exact locality, as some species occur iu 

 one place which are not found in the others. The same may be said with reference to Torquay and its 

 neighbouring localities, Barton, Lummaton, Hope's Nose, Meadfoot, &c. Barton and Lummaton quarries 

 are among the richest spots we are acquainted with, and are situated at about two miles' distance from 

 Torquay. The village of Barton lies between them ; Phillips, and all other strangers, would in all proba- 

 bility call both "Barton." The Lummaton quarry is at the north-west extremity of the mass of lime- 

 stone which forms a great part of the Torquay peninsula. Barton quarry is in an outlier of the same, and 

 is separated from it, perhaps, about three furlongs, the intermediate vale being occupied by the Devonian 

 slate, which underlies the limestone. I have no doubt, from the similarity of many of the fossils, that both 

 Barton and Lummaton are on the horizon of the Woolborough beds. Hope is frequently mentioned by 

 Phillips ; it should be Hope's Nose, the northern extremity of Torbay. This is again a limestone outlier, 

 a relic which, like sundry islets in Torbay, testifies to a vast amount of denudation ; the strata are well 

 marked, but greatly contorted and cleaved, and occasionally unconformable, so that the fossils are but 

 rarely well preserved. The Woolborough limestone is a very curious deposit ; some parts of it have a very 

 metamorphosed aspect, and very frequently the change is so very sudden that small hand-specimens appear 

 like parts of different rocks. Occasionally, moreover, the quarrymen suddenly break into small cavities 

 containing an almost black, unctuous powder, in which our best fossils occur. This powder contains a 

 considerable amount of iron. Many of the limestones contain silex. This quarry is mentioned by the 

 late Sir H. De La Beche, under the name of "Newton Quarry," as remarkable for the number and variety 

 of the fossils it has yielded, Mr. Godwin-Austen having found no fewer than 139 species (see 'Memoirs 

 Geol. Survey,' vol. i, p. 88). Ramsleigh is about half a mile from Woolborough, and belongs to the great 

 mass of Ogwell, Ipplepen, and Denbury limestones. There are also several distinct localities in the neigh- 

 bourhood of Plymouth, &c, which should be carefully noted. 



