580 ME. LINSDALL BICHABDSON ON [Nov. I906, 



presumably), and bearing the legend ' Dentalium giganteum, Phill.. 

 Middle Lias, Hunt-cliff. Yorkshire. R. Murchison, Esq., E.G.S.' 

 [4338]. 



In the Moore Collection at Bath are several fine specimens in rock 

 (rnargaritati hem era) from the 'Middle Lias, Cleveland, York- 

 shire.' These specimens are shown in the appended text-figure 1. In 

 the memoir on ' The Lias of England & Wales (Yorkshire excepted),' 

 published by the Geological Survey (1893, p. 352), Dentalium 

 giganteum is noted from Somerset, Gloucestershire, Warwickshire, 

 and Yorkshire ; from the first-named county presumably on Moore's 



Eig. 1. — Dentalium giganteum, Phillips. (Natural size.) 



[From the Moore Collection, Bath Museum. Photographed by 

 Major E. F. Beeher.] 



authority. The record from the Middle Lias of Camerton requires 

 confirmation, for although Moore stated that it was there associated 

 with D. gracile, Moore, 1 he does not mention it in his list of fossils 

 from the ' Middle Lias of the Camerton and Radstock Districts ' on 

 page 161 of that essay ; neither does Tate mention its occurrence 

 in his paper on the same district. 2 The record of this Dentalium 

 from the Marlstone of Ilminster is probably correct. Mr. T. Beesley 

 has recorded it from the capricornus- and mai-garitahis-beds of the 

 Chipping-Norton railway-tunnel. 



Some better-preserved fragments of the fossil, thought to be the 

 infilling of the tube of D. giganteum, Phillips, from the capricornus- 

 zone of Robins' Wood Hill, near Gloucester, and entered under that 

 name in my ' Handbook to the Geology of Cheltenham ' 1904, p. 219, 

 suggest that they probably filled in the cylindrical cavity of some 

 large tubicolous annelid : but, until more material has been obtained, 

 this must remain an open question. 



Those specimens of Terquem & Piette's Dentalium giganteum, 

 which are angulata-hed fossils, will be found discussed as Dentalium 

 Tevquemi on p. 589 ; while those from the Plicatula-spinosa Zone 



1 Proc. Somerset Arch. & Nat. Hist. Soc. vol. xiii (1865-67) p. 202. 

 - Quart. Jpurn. Geol. Soc. toI. xxxi (1875) p. 504. ;; ; 



