770 Mollusks. 



collections, figures and descriptions of allied species have long been known to many 

 naturalists. The earliest notice of this form that I am acquainted with, occurs in a 

 work by Fabius Colonna, published at Rome in 1616, entitled ' Ecphrasis Stirpium 

 minus cognitarum,' and there called Concha diphya. In the ' Encyclopedic Metho- 

 dique,' 1797, Brugiere has figured another species, subsequently described by Lamarck 

 in 1819 as Terebratula deltoidea. To these, Antonius Catullo has added another spe- 

 cies, Ter. Antimonia, in his ' Zoologia Fossile,' 1826. Von Buch, in his valuable 

 monograph on the Terebratulse (Transactions of the Berlin Academy, 1835), considers 

 the above mentioned three species only as modifications of one form, namely, Ter. di- 

 phya. Antonius Catullo has however published (Osservazioni Geognostico-Zoologiche 

 &c. Padua, 1840) some careful and interesting observations on this group, partly in 

 reply to Von Buch, considering them all as distinct species, and adding a fourth, un- 

 der the name of Ter. mutica. Other species, closely allied to the above, will shortly 

 be published in a work by M. Zeuschner, on the Geology of a portion of the Carpa- 

 thian mountains. The true age of the deposits to which these singular species belong, 

 is not, I think, quite definitely settled ; they are generally considered to belong to the 

 cretaceous series, and it would therefore have been interesting to have ascertained the 

 locality from which the specimen in the collection of Prof. Duval-Jouve was obtained. 

 John Morris ; Kensington, Oct. 15, 1844. 



Description of Natica intricate*, in comparison with Natica glaucina. 

 By Jonathan Couch, Esq., F.L.S., &c. 



Natica intricata. 



The only British naturalist to whom I am able to refer, for infor- 

 mation concerning Natica intricata, is Dr. Fleming; who, in his 

 'History of British Animals,' gives the authority of Donovan's ' British 

 Shells,' under the name above given, and to Col. Montagu, who terms 

 it N. Canrena : but he adds, " this species has occurred only to Mr. 

 Donovan." And when I add that Prof. E. Forbes (' Malacologia 

 Monensis,' 62) supposes it to be the same with N. nitida, and that it 

 is not to be distinguished from some other foreign species, it will be 

 allowed to be of rare occurrence ; and I am therefore led to hope that 

 a description of it, derived from more than one example, and com- 

 pared with the kindred species, N. glaucina, of about equal size, and 

 both of these with several smaller specimens of each, will be found 

 interesting to the readers of ' The Zoologist.' 



The shell termed by Fleming N. intricata, has too rarely come 



