1873.] TATE — PALEONTOLOGY OP SKYE AND KAASAY. 343 



Rhynchonella furcillata. Raasay, R. T. 



variabilis. Raasay, R. T. 



Waldheimia numismalis. Raasay, R. T. 

 Spiriferina oxyptera, Ruvig. Raasay, R. T. 



verrucosa. Raasay, R. T. 



Pseudoglyphea, n. sp. Raasay, R. T. 



Ditrypa circinatani, Tate. Pabba and Raasay, R. T. 



quinquesulcatum, Goldfuss., sp. Pabba, Raasay, R. T. 



Pentacrinus robustus, Wright. Pabba, Wright. 

 laavis, Miller. Pabba, Wright 8f R. T. 



The beds superior to the zone of A. Jamesoni are exposed in the 

 upper part of stream-courses on the Hallaig moor, and form a grand 

 section on the east coast of the island, displaying a gradual passage 

 from argillaceous sediments into the calcareo-arenaceous rocks 

 which constitute so striking a feature in the lithology of the Middle 

 Lias of this area. 



A section of about 150 feet exhibits the following variations of 

 zones. 



Ammonites spinatus. 



1. Yellow calciferous sandstone, with ferruginous nodules. 



Ammonites margaritatus, 



2. Bluish-green fissile calcareous sandstone. 



3. Shelly ferruginous sandstone. 



4. Marly sandstone. 



5. Grey marls. 



6. Greenish-yellow sandstone with shaly partings. 



7. Yellowish sandstone. 



8. Greenish marly sand beds. 



Ammonites capricomus. 



9. Greenish-yellow calcareous sandstone. 



10. Greenish calcareous sandstone, with indurated tops. 



Zone of Ammonites capricomus. — The upper part of this zone is 

 the base of the cliff section on the east coast of Skye. At the south- 

 east side of Portree harbour it consists of hard micaceous sandy cal- 

 careous shales, with lines of spherical calcareous nodules. 



Fossils of the Zone. 



Ammonites capricornus. Raasay. 



Davcei. Portree. 



Henleyi. Raasay. 



Pecten aaquivalvis, Sow, Portree. 



liasinus, Nyst. „ 



Avicula novemcostse. ,, 



Limca acuticosta. „ 



Unicardium Ianthe. 



Cardium truncatum. 



Pholadomya ambigua, Sow. Portree, Raasay. 



decorata. Raasay. 



Pleuromya ovata, Bom. Portree. 

 Mytilus scalprum, Sow. Raasay. 

 Area Stricklandi, Tate' 

 Cypricardia cucullata, Goldf. 

 Inoceramus ventricosus. 



