880 Bibliographical Notices. 



and has a more southern range. It may be questioned whether the 

 two are distinct. Is not this a case of exception to our author's 

 favourite theory that our Mollusca attain larger development in 

 northern latitudes 1 



Nassa nitida, Jeffreys. The Harwich Nassa, which has hitherto 

 been regarded (and, we think, rightly) as a variety of N. reticulata. 

 Colu7nheUa haliceeti, Jeffreys. An interesting species from the 

 Shetland Haaf. 



Defrancia reticulata, Renier. Rare, but ranging from the Channel 

 Islands to Shetland. A white variety of this species is the Mangelia 

 purpurea, var. aspei-rima, of F. & H. ; one of the loveliest of British 

 shells. 



Pleurotoma rugulosa, Philippi. Cornwall. Perhaps scarcely 

 sufficiently distinct from P. casta ta. 



P. liEvigata, Phdippi. Of southern and south-western range. 

 Regarded by Forbes and Hanley as a variety of P. nebula. 



P. nivalis, Loven. A very fine Norwegian species, of which a 

 few examples have been dredged on the Shetland Haaf. 



Cylichna alba. Brown. A fine addition to our fauna from Shet- 

 land. 



TJtrieuhis ventrosus, Jeffreys. Only one specimen known, dredged 

 by Mr. Barlee in the Sound of Skye. 



U. expansus, Jeffreys. Another Shetland treasure; and the 

 * Annals ' of last month records a third addition to this genus, also 

 from Shetland, Utriculus globosus, Loven, which has been discovered 

 by the Shetland Dredging Committee, during the past summer, in 

 St. Magnus Bay. 



Philine angulata, Jeffreys. Antrim, Hebrides, Shetland, and 

 Aberdeenshire. 



P. nitida, Jeffreys. Skye and Haroldswick Bay, Shetland. 



These are not inconsiderable additions to have been made to our 

 fauna in this best-worked-up department of marine zoology during 

 the few years which have elapsed since the publication of Forbes 

 and Hanley's 'History.' 



The observations which follow the descriptions of the species are 

 always of value, and often very full and interesting. We are fre- 

 quently astonished at the mass of information here briefly condensed. 

 It has been Mr. Jeffreys' s aim to popularize his subject and to make 

 a readable book. In the former volumes there were to be found 

 frequent digressions from the direct history of the species on which 

 he was writing, and the pages were thickly strewn with poetical 

 quotations. In the present volume such quotations and digressions, 

 which were tiresome to the scientific reader, are much less frequent ; 

 and, the space thus gained being filled with yet larger stores of 

 scientific information, the result is an increase, not a diminution, of 

 interest. Such bibliographical and biological notes as we find, for 

 example, on lanthina, Purpura, or Buccinum require no extraneous 

 accretions to set them off; they are replete with instruction and in- 

 terest in themselves. 



