604: Bibliographical Notices. 



since 1S98, the year in which Vol. I., dealing with the Syntomidae, 

 was issued. Vol. II., treating of the Arctiadae (subfamilios IS'olinie 

 and Lithosianae), followed in 1900. Arctiante (third subfamily of 

 A rctiadae) formed the subject of Vol. III., which appeared in 1901. 

 The volumes dealing with the XoctuidaD were issued as follows : — 

 Vol. IV. AgrotintE (1903); Vol. V. Iladenin^ (1905); Vol. VI. 

 Cucullian;e (1906); Vols. VII., VITI., & IX. Acronyctinae (1908- 

 1910); Vol. X. Erastriante (1910); Vol. XI. Euteliante, Sticto- 

 pterinse, Sarrothripinae, and Acontianaj (1912). 



The Pliocene MoUusca of Great Britain, being supplementary to. 

 S. V. Wood's Monograph of the Crag MoUusca. By F. VV. 

 Harmer, F.G.S., F.R.Met.S. Part I.: pp. 1-200, pis. i.-xxiv. 

 (The Palaeontographical Society.) February 1914. 



This is a valuable addition to our knowledge of the Crag Molliiscan 

 fauna of this countrj'-, and is intended to form a supplementary 

 account to Searles Wood's monograph on the same subject, published 

 many years ago by the Palaeontographical Society. The memoir 

 commences by noticing the various non-marine shells found in the 

 Crag, which are divided into the groups of "Terrestrial" and 

 " Aquatic." Some 48 species are referred to, of which 13 are 

 considered to bo extinct ; they are of most fre(]uent occurrence in 

 the Norwich Crag, less so in the Red Crag, while only 3 are known 

 in the Coralline Crag — information which is usefully summarised in a 

 " Distribution Table." We note that Studer's genus Pomatias (type 

 = Nerita elegans, Miiller) is adopted for Lamarck's Cgclostoma of a 

 later date, the subject being mentioned as if it were quite recently 

 inspired, whereas Mr. 11. Bullen Newton pointed out more than 20 

 years ago (Ann. & Mag. Nat. Hist. 1891, eer. 6, vol. vii. p. 340) 

 that it was essential to recognize that name in conchological 

 nomenclature. The marine raollusca are next considered, much 

 new material having been obtained from the lied Crag deposits of 

 Little Oakley near Harwich, between Walton-on-Naze and Felixstowe, 

 representing a littoral and southern fauna with some northern 

 species, the beds being regarded as of " Waltonian" age, which is 

 stated to be partly eijuivalent to the Poderliaii stage of the Belgian 

 Pliocene deposits. Varietal names, which already burden our concho- 

 logical literature, are largely resorted to, no loss than a dozen being 

 used in connection with Buccinum undatum — far better would it 

 have been to raise the chief of these to specific rank and to have 

 ignored those of lesser importance. 



We notice that the terms Miocene and Pliocene are frequently 

 quoted in connection with the geological distribution of the species, 

 although it is advisable to define more particularl}', when able, the 

 actu;il stage of those periods, such as Vindobonian, Plaisancian, &c. 

 In glancing at the generic names employed, we observe those 

 attributed to Klein and Adanson, both prc-Linnscan authors, as also 

 others which have been pre-occupicd in different sections of zoology, 

 among which we would call attention to the following: — 



Teukuua of Adanson, pre-Liunajan, 

 =1 Lamarck, 1799. 



