THE YORKSHIRE COAST. 



173 



bosa, chalk and Speetan clay ; 5, lineolata,* Speeton clay ; 6, orni- 

 thocephala, Kelloways rock ; 7> ovoides, 8, digona, cornbrash , 

 9, punctata, marlstone ; 10, ovata ? coralline oolite ; 11, globata, 

 coralline and Bath oolite ; 12, resupinata, 13, acuta, 34, bidens,* 

 15, tridentata,* 16, tetraedra, ironstone series in lias ; 17, subpli- 

 cata, chalk ; 18, socialis,* calcareous grit and Kelloways rock ; 

 19, obsoleta, coralline oolites 20, spinosa, Bath oolite; 21, incon- 

 stans, 22, striatula, Speeton clay ; 23, pentagonalis,* chalk. 

 Spirifera Walcottii, lias. 

 Orbicula, 1, reflexa, lias ; 2, radiata,* coralline oolite ; 3, latissima, 



Oxford clay ; 4 ? Speeton clay ; 5, inferior oolite. 

 yEquivalvise. Lingula, Beanii,* inferior oolite. 



REMAINS OF GASTEROPODOUS MOLLUSCA. 



(SIMPLE UNIVALVE SHELLS.) 



Auricularias. Auricula, 1, obsoleta,* Speeton clay ,- 2, Sedgevici,* inferior oolite. 



Bullaceae. Bulla elongata,* coralline oolite. 



Tornatelladse. Actaeon, 1, glaber,* inferior and Bath oolite ; 2, humeralis,* in- 

 ferior oolite ; 3, retusus,* calcareous grit ; 4 ? cornbrash ; 5, lias. 



Subulate. Terebra, 1, melanio'ides,* coralline oolite; 2, granulata,* coralline 



oolite and cornbrash ; 3, vetusta,* Bath and inferior oolite. 



Varicosae. Murex Haccanensis,* coralline oolite. 



Alatae. Rostellaria, 1, Parkinsoni, Speeton clay, (called by mistake, composj- 



ta, page 122,) 2, composita, Bath and inferior oolite ; 3, bispinosa,* 

 calcareous grit and Kelloways rocTf ; 4, trifida,* Oxford clay. 



Melaniauae, Melania, 1, striata, coralline and Bath oolite ; 2, Heddingtonensis, 

 coralline oolite, cornbrash, and inferior oolite ; 3, lineata, inferior 

 oolite ; 4, vittata,* coralline oolite and cornbrash. 

 Phasianella cincta,* Bath oolite. 



Turbinacesp. Tunritella, 1, muricata, coralline oolite, calcareous grit, Kellowayn 

 rock, and inferior oolite ; 2, cingenda, coralline, Bath, and inferior 

 oolite ; 3, quadrivittata,* inferior oolite ; 4, ? in Speeton- clay ; 

 5, lias. 



Turbo, 1, muricatus, coralline, Bath, and inferior oolite; 2, unicari- 

 natus,* inferior oolite ; 3, funiculatus,* coralline oolite ; 4, pul- 

 cherrimus, Speeton clay ,- 5, sulcostomus,* Kelloways rock ; 6, Isevi- 

 gatus, inferior oolite , 7> undulatus,* marlstone. 

 Delphinula, 1, Speeton clay ; 2, coralline oolite ; 3, Bath oolite. 



