347 
Sir R. Scliomburgk on some new Fossil Shells. 
Cyclostomata from the same quarter have opercula wound on a 
plane, as in a new species found by Dr. Jerdon in the Nilgherries, 
or beautifully ornamented and projecting beyond the peristome, 
as in C. cornu-venatorium. Of the last-named shell I lately took 
alive, near Point de Galle in Ceylon, specimens of a singular 
variety with a free deflected aperture analogous to that of Cylin- 
drella. 
XXXVIII. — Description of some new Fossil Shells from Bissex 
Hill and Springfield in Barbados. Communicated by Sir 
Robert H. Schomburgk, Ph.D., Member of the Imperial 
Academy Nat. Curios. &c.* 
Pam. SCALARIANA, Lam. 
ScALARiA Ehrenbergi, E. Forhes. (Pig. I.) 
S. testa brevi, obesa, ventricosa, anfractibus 5, longitudinaliter 
costulata, costis regularibus sequalibus, lamelliformibus, in ultimo 
anfractu 16; apertura rotundata, marginata. 
Shell ventricose and shortly conical, whorls'about 5, rounded, 
longitudinally ribbed ; the ribs equal, elevated and not thick, nu- 
merous, 16 on the body whorls : no spiral ridge on the base : 
Fig. 1. Scalaria Ehrenbergi. 
Fig. 2. Nucula Packeri. Fig. 4. Nucula Schomburgkii. 
Fig. 3. The same, showing the dorsal margin. Fig. 5. The same, showing the dorsal margin. 
marginal rib of the round aperture strong and high ; columella 
broad and rather angulated at the base. ' Length of an inch : 
breadth y^y of an inch. 
This remarkable species is allied to some tertiary forms, pro- 
bably miocene. Among recent species its nearest ally is the 
Scalaria crassilabrum of Sowerby, jun., a species from the Phi- 
lippines and Central America.^^ 
* The description of these interesting fossils is originally printed in my 
‘History of Barbados’ (London, 1848, Longman, Brown and Co.) ; but as 
such a work possesses only local interest, and its circulation is consequently 
limited, it is not probable that naturalists in general would become acquainted 
with their description if it were restricted to the pages of that work. I have 
therefore requested the Editors to insert the account of these fossil shells in 
the ‘ Annals of Natural History.’ — R. H. S. 
