122 



B". KEEPING AND E. B. TAWNEY ON THE BEDS AT 



Colwell Bay. G. trizonatum (Morr.) is in Edw. coll. from Hordwell 

 &c. ; it would therefore seem to be Lower Headon as well as 

 Upper. G. subconoideum (Ed. MS.) seems doubtfully a distinct form. 

 G. cestuarinum (Ed. MS.) as from Hordwell, in Edw. coll., is founded 

 on a minute fragment, and we do not insert it. G. headonense 

 (Ed. MS.) is in Edw. coll. from Headon Hill ; but we do not insert 

 it, as it may be Lower Headon only. G. pidchrum (Ed. MS.) is in 

 Edw. coll. as from marine Headon beds of Hordwell. G. pseudo- 

 cinctum (d'Orb.) is in Edw. coll. as from Barton. 



Turbonilla plicatella (Ed. MS.) is in Edw. colli' from Eoydononly : 

 T. plicatilis (Ed. MS.) is there as from Colwell Bay . and Barton. 



Melania brevicida (Ed. MS.) is in Edw. coll. as from Hordwell 

 and Barton ; M. Woodi (Ed. MS.) from Hordwell seems a Lower- 

 Headon shell, and is not inserted ; the names M. conica, M. polygyra, 

 M. minima (Sow.), we could not find represented in the Edw. coll., 

 and omit them. 



Bissoa carinata (Ed. MS.) occurs at Barton, but not the var. den- 

 ticulata, according to the labels in Edw. coll. 



Gonorbis dormitor (Sol.) and G. procerus (Beyr.) occur at Barton, 

 but not the special varieties to which MS. names are attached in the 

 Edw. coll. / ; , 



Hydrobia polita (Edw.) from Headon Hill is Upper Headon only, 

 and therefore omitted ; II. anceps (Wood) is in Edw. coll. as from 

 Hordwell, Colwell Bay, Long Mead End, and Barton ; H. Dubuis- 

 soni, var. rimata (Ed. MS.) is labelled as from Hordwell marine bed. 



Trochus pictus (Ed. MS.) is in Edw. coll. from Hordwell ; it is in 

 the "Woodwardian museum from near Setley Common, Lymington. 



Melanopsis ancillaroides (Desh.) was in Edw. coll. subsequently 

 labelled M. subfusiformis (Morr.) ; the former name may be omitted. 

 M. subulata (Sow.) occurs twice in Prof. Judd's list, and with diffe- 

 rent ranges. M. subcarinata (Morr.) is in Edw. coll. as from Bern- 

 bridge and Hordwell marine bed ; at the latter locality it probably 

 came from Lower Headon (freshwater) to judge from the aspect of 

 the shell. 



The species of Adeorbis in Edw. coll. are founded on single indi- 

 viduals ; A. cestuarina (Ed. MS.) we could not find. 



Oriliostoma crenatum (Sow.) is in Edw. coll. from Brockenhurst 

 and Barton. 



Tomatella cdtera (Desh.) is determined from a single individual 

 in bad preservation, and seems to us very doubtful. T. Tiinnwfor- 

 mis (Sandb.) [sic] of the Brockenhurst list is the same shell as 

 Actceon limnceiformis (Sandb.) of the Headon-Hill list; it is in 

 Edw. coll. as from those two localities. A. simulatus is inserted on 

 the faith of our own researches. A. dactylinus (Desh.) is in Edw. 

 coll. from Colwell Bay ; we have found it there also. 



Mingicula ringens (Lam.) occurs only in Barton or lower beds. 



TrocJiita obliqua (Sow.) was described originally as " a small but 

 perfect specimen from Brakenhurst [sic], in Sussex ; the species is 

 found much larger in the cliff at Barton the type was only i inch 

 long, and was recognized by Sowerby as occurring at Barton, while 



