66 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



The f6ssils are the same as those of the grits last mentioned, with 

 the exception of some of the rarer species, and the addition of 



Tentaculites annulatus. 

 Homalonotus bisulcatus. 

 Strophomena grandis. 



bipartita (see Appendix), a species with a strong central rib; 



very common in the next division. Chatwall. 



Modiolopsis ; one or two small species. 



modiolaris. Chatwall. 



Nucula sp., same as a Bala species ; Cheney-Longville. And 



one or two other bivalves. 

 Orthonota nasuta. Horderley. 

 Turbo crebristria. Chatwall. 

 Nebvdipora favulosa, var. lens. (N. lens, M'Coy.) 

 Glyptocrinus basaUs, M'Coy. The rings of this species occiu* in great 



numbers. 

 Murchisonia simplex, M'Coy. Chatwall. 

 Bellerophon bilobatus, ***. 



Orthoceras ; smooth, and with central siphon. Horderley ; Chatwall. 

 Diplograpsus pristis. Occurs at Soudley quan-ies. 



The prevailing species, hovpever, are 



Orthis elegantula, O. testudinaria, and O. altemata; 

 Leptfena sericea ; 



Nebulipora favulosa, var. lens ; and 



Glyptocrinus basalis; separate rings and stems, which occur in the 

 greatest profusion on every slab. 



4. Tliin-hedded flags, with much sandy shale and thin beds (2 to 

 6 inches thick) of greenish sandstone. — They are more earthy about 

 the upper parts, and at Acton Scott pass into a hard and thick- 

 bedded siliceous flag, formerly quarried for building-stone. The best 

 section of these is seen on the Oiiny River, above the Horderley flags 

 last noticed ; and tliey are also well seen along the lane leading west 

 from Cheney-Longville to the common, where all the beds are visible, 

 dipping at a low angle towards the village. Proceeding northwards 

 they occur also at Woolston, Bushmoor, Wittingslow^, Acton Scott 

 plantations, and the Marshbrook station of the Shrewsbury and Here- 

 ford Railway. They are seen near Hope Bowdler at the Holly Farm- 

 house, where calcareous courses come out immediately mider the 

 farmyard*. At Gretton quarry, near Cardington, they are better 

 seen than anywhere else, the • quarry being a perfect magazine of 

 fossils in a soft yellowish sandstone. On the ridge-road from Broome 

 to Church Preen, several openings in the lower part of these beds 

 occur, rich in fossil shells. The beds are not nearly so much disturbed 

 as those of the previous division, and generally dip at low angles. 



* Fragments of these limestones were gathered from the lime-kiln (now de- 

 serted) further down the brook, where .in attempt vras formerly made to burn the 

 overlyhig " Pentamerus limestone." It was the accidental mixture of some of 

 those specimens in the original collection, that introduced so many characteristic 

 Llandeilo species into this uppermost band or " Hollies Limestone." See Silu- 

 rian System, vol. i. p. 217. and pi. 19. 



