CONCI-IOLOGICAL AUTHORS. 
1 he following works, to which wc have generally and 
almost exclusively referred, and of which we will endeavour 
to give a short account, will probably furnish a library fully 
competent to all the purposes of a complete knowledge of 
British Conchology, both in description and delineation, as 
far as it has hitherto been illustrated. The learner may also 
avail himself of the Elementary Introductions of Brooks, 
Brown, or Burrow. 
Broun , JVern. Soc. Account of tire Irish Testacea; by 
Thomas Biown, Esq. F.E.S.—Al.W.S.—M. K. S. &c. in 
vol. ii.part 2. of The Memoirs of the Wernerian Society, 
with a plate of some new and rare subjects. 
We are anxious to correct an error, for which, as it may 
* have originated in our own carelessness, we cannot but con- 
i sider ourselves in a great measure responsible. Among a 
parcel of shells which we transmitted to Captain Brown, 
as collected on the Irish coasts, there was by accident in¬ 
cluded the spiral termination of Serpula lumbricalis, which 
he has figured and described under the name of Turbo pen- 
tangularis. 
Da Costa . The British Concliology, by Emanuel Da 
Costa, quarto, 1/7^, with 1/ colored plates. One of the 
truly original works on this subject. One hundred and 
twenty-seven species are well delineated, and many more 
faithfully and minutely described, both in English and 
French, all from the subjects themselves. The arrange¬ 
ment is not according to the Linnean system: but it pos-* 
sesses the rare, and we believe unique, excellence of giving 
the whole of the synonyms in the words of the respective 
authors themselves. 
To the student who may wish to compare his specimens 
with the figures of this author^ it may be proper to remark. 
that 
