104 On the Genus Amathia of Lamouroux, 



followed in 1821. Latreille made another attempt in 

 1825 in his Families of the Animal Kingdom. It is said 

 of this that he only borrowed from Messrs. Cuvier, Lamarck, 

 and Lamouroux. Gaillon and Bory St. Vincent followed, 

 and then Dr. Fleming was the only British naturalist who 

 tried his hand at the arrangement of Zoophytes ;* but 

 though he knew his subject well, and made some valuable 

 discoveries, yet his method, as well as that of Oken and 

 Van der Hoven, have long been forgotten. I will only say 

 of the latter that I know of no work that contains such 

 marks of extensive reading, or where there are such copious 

 references to the bibliography of the subject, as in his essay 

 on the art of classifying.")* 



At the same period Prof. Grant (1827) made important 

 researches into the anatomy of Flustrse, which were followed 

 by those of Milne Edwards in 1828. About this time Mr. 

 J. V. Thompson proposed the establishment of a separate 

 class, which he named Polyzoa. Prof. Ehrenberg subse- 

 quently (in 1834) suggested the name Bryozoa. In 1836 

 Dr. Johnston, the author of British Zoophytes, proposed that 

 the primary sections of zoophytes should be named radiated 

 and molluscan.J The latter were embraced in one order. 

 The M. Ascidioida, a name intended to point out its imme- 

 diate affinity with the mollusca tunicata and the radiated 

 zoophytes, were divided into three orders, the same as those 

 of Milne Edwards, but designated the Hydroida, Aster video, 

 and Helianthoida, names which have been adopted by 

 naturalists in general. In 1840 Mr. J. Hogg proposed a 

 different classification of the zoophytes, founded on the 

 structural peculiarities of the tentacula.§ In 1843 Prof. 

 Owen, in his Lectures, proposed to divide the radiated 

 zoophytes into two classes — the hydrozoa and anthozoa — 

 which latter was made to include the orders Aster vida and 

 Helianthioida. 



I do no more than refer my readers to the whole series of 

 the Annals of Natural History for the successive labours 

 of Messrs. Alder, Allman, Albany, Hancock, Wyville Thomp- 

 son, Busk, and others. The Philosophical Transactions 

 contain Dr. Farr's valuable papers. The names of Dr. 

 Bowerbank, Sir J. G. Dalzell, Sars (Fauna Novegs), Van 



* History of British Animals, Edinburgh, 1828. 



f Van der Hoeven's Zoology, translated by Dr. Clark, 2 vols, London, 1856. 



X Magaz. Zool. and Bot. t Vol. 1, p. 447. 



§ Ann. Nat. Hist, Vol. 4, p. 366. 



