NOTES 



On Pyeula Bengalina of Grateloup. {Read 8th JVovemier, 

 1907.) — Jean Pierre Silvestre de Grateloup wrote but a single descriptive 

 paper upon recent shells. He was the author of a list of the land and 

 fresh-water Mollusca of Dax in the South of France and of a classification 

 of the Bullidee, but the rest of his writings upon Mollusca had reference 

 to fossil forms. They were mostly published in the Bulletin or Actes 

 de la Societe Linneenne de Bordeaux. The shell which forms the subject 

 of this note was described under the name of Pyrula Bengalina in vol. xi, 

 p. 447, of the Actes, and figured on pi. iv, fig. 5, and as far as I can 

 discover has only been referred to since by Kiener, Paetel,' and Tryon,' 

 the last-mentioned author having given a reduced reproduction of the 

 original figure and a very brief description founded upon Grateloup's 

 diagnosis. He was at the time in doubt where to place it, and did not 

 know to what genus it really belonged, but introduced it in his classi- 

 fication after Hemifusus, observing that it was evidently a monstrosity. 

 In this, however, he was mistaken. It is not a monstrosity, but 

 only the young state of the common Pterocera hryonia, as he^ 

 subsequently discovered, probably from Kiener's* statement and 

 figure, or from the figures and observations given by Chemnitz 

 (Conch. Cab., vol. x, pi. clix, figs. 1513-15). Figure 1513 represents 

 a specimen about the same size as the shell described by Grateloup. 

 Chemnitz was not deceived by the different aspect of this early stage of 

 the shell from that of the adult, but rightly described it as the young of 

 hryonia. The figs. 1513, 1514, 1515 in vol. x, and figs. 904, 905 in vol. iii 

 depict three early growths of the species. Fig. 1512 represents a still 

 later stage, just before the claws would commence to form. I have been 

 induced to call attention to this subject as the British Museum has just 

 acquired through Messrs. Sowerby & Fulton the actual types described 

 and figured by Grateloup in the paper referred to above, and among them 

 the Pyrula Bengalina. The only other new marine shell described in this 

 paper is Scalaria Clementina from Singapore and Manila, of which S. tri- 

 fasciata, De Haan, and latifaseiata, Sow. (Con. Icon., fig. 117a), are 

 synonyms. E. A. Smith. 



On the Distribution of Petricola peolabifobmis, Lam. {Read 

 8th November, 1907.) — Mr. W. Crouch was the first to notice this species 

 in England in July, 1890, at Burnham-on-Crouch. In April, 1896, 

 Mr. J. E. Cooper found several valves at Shellness, near Sandwich, Kent, 

 whilst at the same time I found it living abundantly at Heme Bay, Kent. 

 Examples of this species from the three localities were exhibited before 

 this Society in May, 1896.^ This year, whilst on a visit to Suffolk, 

 I obtained several examples from peat thrown up on the shore at 



1 Cat. Conch. -Samml., 1887, vol. i, p. 37, as a Thatchcria. 



• Man. Conch., vol. iii, p. 113, pi. xliv, fig. 242. 

 ^ Op. cit., vol. vii, p. 124. 



* Icon. Coq., viv. Pterocera, p. 4, pi. x, fig. 3. 

 5 Proc. Malac. Soc, vol. ii (1896), pp. 134-5. 



