124 W. 1). Lang — Zone of Hoplites internqjtus, Charmouth. 



from the Museum of Practical Geology apparently with the rest 

 of the Strachey Collection, although there is now no information 

 with the fossil. There is, however, a loose Jermyn Street Museum 

 label, without any specimen, to the following effect: — "Oolitic: 

 NitiPass. Aminoiiites orbiculatus. Coll. by Ool. Strachey." I have 

 not met with this specific name in any descriptions of Himalayan 

 fossils, but the form of the present specimen would most likely 

 suggest such a specific name, and I therefore think there is every 

 probability of this label having belonged originally to this example, 

 although direct evidence of the fact is wanting. If, however, the 

 name A. orbiculatus has been used in connection with any Jurassic 

 Cfphalopod from the Himalaya, it probably refers to this specimen. 



V. — The Zonk of Hoplites interruptus (Brugtjiere) at Black 

 Ven, Charmouth. 



By W. D. Lang, B.A., F.Z.S., British Museum (Nat. Hist.). 



LYING unconformably upon the well-known Liassic beds of 

 Black Ven, the cliff which overhangs the sea-shore between 

 Lyme Regis and Charmouth, occur beds of Cretaceous age, repre- 

 senting the Gault and Upper Greensand of other localities. The 

 lower beds consist of loams, dark and almost black where the clay 

 predominates over the sand, and lighter where the sand is present 

 in larger quantities. Above these loams are yellow sands containing 

 indurated nodules called ' Cowstones,' wliich, with the ' Foxmould ' 

 sands above them, have been considered to represent the zone of 

 Schloenbachla rostrnta (Sowerby).^ The dark loams below them 

 represent, therefore, the zone of Hoplites interriqdus (Bruguiere). 



Of this zone some account has been given in the Survey Memoir;^ 

 but as the section given, measured in 1895, agrees only generally 

 with those measured by the author in 1901 and 1902, differing 

 conspicuously in the absence of the hard sliales to be described 

 later ; and as the two last-mentioned sections, though separated 

 for some distance, are obviously continuous, it may not be out of 

 place to describe the sections that are exposed at the time of writing. 

 For the cliff frt^quently falls, causing the covering up of old sections 

 and the exposure of new. And though, until it was measured in 

 detail, the western section was thought to be that described in the 

 Survey Memoir and measured in 1895, the author now thinks that 

 a new section is exposed, showing three bands of hard shaly loam 

 unrecorded before. 



Concerning the eastern section, which shows the junction with the 

 Lias, it may be that described as having been found by Mr. C. Reid 

 in 1875.^ At present, however, it is not at all obvious, being 

 covered by some thickness of 'rain wash,' so that to expose the 

 junction some amount of digging has to be performed. 



1 A. J. Jukes-Browne: "The Gault and Upper Greensand of England," 1900, 

 p. 183. 



2 Jukes-Browne : loc. cit., pp. 187-189. 



3 Jukes-Browne: loc. cit., p. 189. 



