PREFACE.
examples of Mediterranean Nudibranchs sent us by Professor Verany, of Nice. Along with
many other favours, we owe to our valued and lamented friend, Dr. Johnston, of Berwick, the
kind encouragement which first induced us to undertake this work, the completion of which,
alas! he has not lived to witness.
To mention all to whom we are under obligations would be to enumerate nearly every
living naturalist who has paid attention to the subject. The assistance we have received
from each is, we trust, duly acknowledged in its proper place. We may, however, be allowed
to particularise here the names of Professor Allman, of Dublin; Mr. Cocks, of Falmouth;
Dr. Gray, of the British Museum ; Mr. Price, of Birkenhead; the Rev. David Landsborough,
junr., of Kilmarnock; Mr. Barlee, of Exmouth; and Mr. George Murray, of Burghead. To
our friend, Dr. Embleton, our thanks are especially due for the assistance he has given us in
the necessary anatomical investigations. With the advantage of his assistance, we feel greater
confidence in the result of our labours in this department than we should otherwise have done.
In nothing has the lapse of time since the commencement of our task been more
forcibly impressed upon us than in the losses we have sustained by the hand of death during
its progress. Not only have we to lament the untimely decease of the three eminent
naturalists, Dr. Johnston, Professor Edward Forbes, and Mr. Thompson of Belfast, who were
appointed a sub-committee of the Ray Society, to see this work through the press, and who took
a friendly interest in its progress; but two of the artists who have successively been employed
in it—Mrs. Holmes, who undertook the lithotinting of the earlier parts, and Mr. Wing, who
succeeded her with equal ability—are now also numbered with the dead. The later plates
have been executed by Mr. Ford, of the firm of Ford and West, in a manner that has met
with our entire approbation. The style has been changed from lithotint to lithography, we
think with advantage; as the latter, in the hands of a competent artist, possesses the advantage
of greater certainty in the execution than can be attained by the former method.
N ewcastle-upon-T yne,
Sept. 1855.
CONTENTS OE THE PARTS AS ISSUED, WITH THEIR DATES OE
PUBLICATION.
Part 1.—1845, for 1844.
Advertisement.
First or provisional Synopsis
Fam. 1, PI. 4. Doris flammea.
5. J ohnstoni.
26. Idalia aspera.
Fam. 3, PI. 3. Dendronotus arborescens.
21. Eolis alba.
24. concinna.
26. olivacea.
34. tricolor.
35. Farrani.
36. despecta.
Part 2.—1846, for 1845.
''am. 1, PI. 10. Doris diaphana.
13. pusilla.
18. Goniodoris nodosa.
23. Polycera ocellata.
Fam. 3, PI. 1. Larvae of the Eolididse.
2. Genus 11. Dendronotus.
4. Genus 12. Doto.
6. Doto coronata.
12. Eolis coronata.
15. punctata.
23. angulata.
30. amoena.
42. Proctonotus mucroniferus.