86 



ME. GARDINER AND PROF. REYNOLDS ON THE [Feb. I9I2, 



Linddrmnia hina Lonsd. 



L. subduplicata M'Coy. 



L. subchiplicata var. crcnulata M'Coy. 



FalcBocychis sp. 



Ft ychophyllum patellatmn Schloth. 



Strejotelasma elongcduon Phill. 



Gyatho-phyllum sp. 



Heliolites megastorna M'Coy. 



//. murchisoni M.-Eclvv. 



H. interstinctus Linn. 



Propora tuhulata (?) Lonsd. 



Plas'mopora petaliforruis Lonsd. 



Halysites catcnularia Linn. 



H. esckaroides Lamk. 



Favosites gothlandica Fougt. 



F.forhesi M.-Edw. 



F.^bowerbanki (!) M.-Edw. 



F. aspera D'Orb. 



F. cristata (!) Blum. 



Favositella sp. 



Ccenites intertextus Eichw. 



Thecia swindercncma Goldf. 



Lingida parallela (!) Phill. 



Orthis calligramma Dalni. 



O. elegantula Dalm. 



0. mstica Sow. 



Orthotetes pccten Linn. 



Chonetes striatella Dalm. 

 Leptcena rhomboidalis Wilck. 

 Plectambonites transversal in Wahl. 

 Wilson ia ivilsoni Sow. 

 CamarotcBcliia Handover iana (!) Da v. 

 Fcntamerus undatus Sow. 



F. ohlongus Sow. 



Coelospira hemispherica (?) Sow. 

 Spirifer plicatellus Linn. 

 Atrypa reticularis Linn. 

 Atrypina harrandei Dav. 

 Mcristella cf. angustifrons M'Coy. 

 Fenestella sp, 

 Fterinca sid)falcata Conr. 

 Modiolopsis sp. 

 Ariibonychia striata, var. 

 Trihlydium sp. nov. 

 Orthoceras ludense Sow. 

 Cyrtoceras approximatum Sow. 

 Goraphoceras cBquale (!) Blake. 



G. imbricatiim Barr. 

 6^. sp. 



Beyrichia Mmdeni M'Coy. 

 Trinucleus sp. 

 Froetus latifrons M'Coy. 

 Encrinurus punctatus Briiim. 

 Crinoid stems. 



The most noteworthy feature in the foregoing list is the occur- 

 rence of Trinucleus in Llandovery strata. The specimen was not 

 found' actually in place, but was collected from a block built into a 

 wall. The matrix is precisely that of the Llandovery rocks of the 

 neighbourhood, and the following fossils were collected from the 

 same block : — Lindstrcemia subduplicata var. cremdata, Favosites 

 forbesi, Spirifer plicatellus, Lepkena rhomboidalis, Pterinea sub- 

 falcata, and Encrinurus pmictatus. 



(5) The Purple Sandy Shale. 



This narrow band of shale is remarkably persistent throughout 

 the whole outcrop, from a point north-east of the Doon Hock west- 

 wards to the Finny Kiver ; and, owing to the readiness with which 

 it could be recognized, it proved of considerable service in mapping. 

 From the neighbourhood of the Kilbride burial-ground northwards 

 no permanent exposure of the shale occurs. It was exposed, how- 

 ever, in 1911, in a trench immediately to the west of the Kilbride 

 burial-ground, and fragments occurring on the beach north of 

 Foxhill indicate that it here strikes the shore-line. jSTo fossils 

 were found in these shales, despite prolonged search. 



(6) The Doon Rock Grits. 



These massive grits attain a greater thickness, and cover a 

 larger area than any other Silurian formation in the district. They 

 are well seen along the southern shore of the peninsula for about a 

 mile to the west of the gneiss, whence they run north-eastwards 

 past the Doon Rock to Kilbride Church. They also form Fox Hill 



