Bibliographical Notice, 73 



reputed Spii'ifers sent to me from America by Mr. Meek : — 

 Sp. Hannibalensis (Swallow), Sj). capax (Hall), *S;). ? hemiplicatus 

 (the type of a new genus Syntrilasma), all of wliich are unques- 

 tionably perforated. On the other hand, a chip sent to me by 

 Mr. Meek of a little shell which he states to be the type of Prof. 

 Hall's genus Ambocoilia (= Orthis umbonata, Con.) is as cer- 

 tainly imperforate. But, after the experience above described, 

 I should hesitate to pronounce on the absence of perforations in 

 a shell allied to this group, except after the examination of 

 several such fragments. 



I remain, Gentlemen, 



Your obedient Servant, 



William B. Carpenter, 

 University of London, June 17, 1867- 



P.S. I have to add that, having learned from Mr. Davidson that 

 the typical structure of Syringothyns is exhibited by a Belgian 

 shell hitherto known as Spirifer distans, I have reexamined the 

 only example of this type at present accessible to me, the one 

 contained in the Museum of the Royal School of Mines. So far 

 as I can judge from the minute fragments of shell, not very well 

 preserved, which this specimen has afforded, I should still say 

 that it is imperforate. But the experience I have now acquired 

 from the Millecent shells leads me strongly to desire a more 

 complete investigation of this type; and I should be greatly 

 obliged to any of your readers who may be able to supply me 

 with well-preserved specimens of it. It does not seem impro- 

 bable that the reputed Spiinfer distans of Belgium, which proves 

 to be truly a Syringothyris (see Davidson, loc. cit.), may be, like 

 the Millecent shell, an isomorph of a true Spirifer. 



BIBLIOGRAPHICAL NOTICE. 



1. A List of the Flowering Plants, Ferns, and Mosses collected in 

 the immediate neighbourhood of Andover. By C. B. Clarke. 

 Calcutta, 1866. 



2. Flora of Devon and Cornwall. By J. W. N. Keys. (Ranuncu- 

 lacese — Geraniaceae.) Plymouth, 1866. 



3. The Bath Flora, A Lecture delivered to the Members of the 

 Bath Natural-History and Antiquarian Field Club. By the 

 Rev. L, Jenyns. Bath, 1867. 



4. Flora of Norfolk : a Catalogue of Plants found in the County of 

 Norfolk. By the Rev. K. Trimmer. London, 1866. 



These four tracts on the flora of Britain have recently reached us. 

 They differ considerably in intention and character, but are well 

 deserving of notice. The first has the peculiarity of being a partial 

 flora of a district in England, printed and published at Calcutta. 



