406 



Walker — Greensand Brachiopoda, 



calcareous matter would be furnished by the proximity of the Coral 

 Rag. Tlio late Dr. Woodward, in his " Manual of the Mollusca," 

 remarks that *' where the bottom consists of calcareous mud, they 

 (Brachiopods) ap^Dcar to be very abundant, mooring themselves to 

 every hard substance on the sea-bed, and clustering one upon the 

 other." (page 213.) 



Another peculiarity of the bed is to be found in the distribution of 

 these shells, fresh species having occurred in almost every field where 

 the bed has been worked. I have no doubt that several more species 

 will be added to this list, but in the meanwhile, I give a Table of the 

 species which have been found in the Lower Greensand of England, 

 including the Farringdon deposits. 



LOWER CRETACEOUS BRACHIOPODA. 



Lingula truncata^ Sowerby 



Crania cenomanensis, d'Orbigny 



Thecidea Wet/ierellii, Morris 



Terebratella oblonga, Sow 



Fittoni, Meyer 



Menardi, Lamarck 



trifida, Meyer 



Terebratella? Davidsoni, Walker 



Waldheimia mutabilis, sp. n 



pseudo-jurensis, Leymerie 



tamarindus, Sow 



Morrisii, Meyer 



rhomboidea, sp. n 



celtica, Morr 



JVoodwardi, "Walk 



Terebratulina striata, Waklenberg ... 



Terebratula prcelonga, Sow 



Lutempleana, d'Orb 



■ Lanhesteri, sp. n 



microtrema, sp. n 



extensa, Meyer 



Robertoni, d'Archiac 



tornacensis, d'Arch 



sella, Sow 



Moutoniana, d'Orb 



Meyeri, sp. n 



depressa, Lamarck 



var. cyrta 



Ballasii, Walk 



RhyncJionella Gibbsiana, Sow 



parvirosiris, Sow 



depressa, Sow 



antidichotoma, Buvignier 



lata, d'Orb 



nuciformis, Sow 



^ I am indebted to tbe kindness of Mr. Meyer for a list of the species found at 

 Godalming, and also for specimens from that deposit. 



2 This species was discovered by Mr. E. R. Lankester in the Lower Greensand of 

 the Isle of Wight. 



