190 F>r. Maton's and Mr. Rackett's 



little more than a catalogue, it is adorned with very good figures, 

 and many of the species are of considerable rarity. It is wholly 

 in the German language. The plates arc twelve in number, ex- 

 clusive of the four subjoined to an appendix to this work, pub- 

 lished at Lcipsic under the title of " Nachtrag zu der Conchylien 

 im Furstlichen Cabinette zu RudoUtadt" 

 The Fuanu Groenlandica of 



OTIIO FABRICIUS 

 deserves a distinguished place among Testaceological works, as 

 it contains an ample and satisfactory description of fifty-seven 

 species of shells, some of which had not been described by any 

 author before. The arrangement is that adopted by LIuller; and, 

 like him, Fabricius pays minute attention to the structure and 

 habits of the contained animals. 



We are indebted to the celebrated 



PALLAS 



for the description of several new species of Testacea, in his Mis- 

 cellanea Zoologica, and also in the Spicilegia Zoological and he has 

 not contented himself with making known non-descript species, 

 but has, moreover, rectified the accounts given by preceding au- 

 thors of others well known before. Few labourers in the paths of 

 natural history have more largely extended every branch of it 

 than this truly scientific observer. The Testaceologist will con- 

 sult with much satisfaction his remarks on the Serpuhe, contained 

 in the work first mentioned, and called forth by the occasion of 

 describing that remarkable species the S. gigantca. He adduces 

 many anatomical facts which seem to have been unknown to 

 Linnaeus, and which occasion some anomalies in that genus. The 

 10th fasciculus of the Spicilegia contains good figures of some rarer 



shells 



