of the North Atlantic and of North-Western Europe. 623 



Grovernment Expeditions cannot be expected thus to notice them. Hence it is 

 that in a large number of cases the only examples which have come into our 

 hands are such as have been picked out of dried material. 



It struck us that, notwithstanding their dried condition, it might yet be 

 possible by maceration to get some idea of the withered inmates of the shells. 

 We therefore made experiments, and succeeded in restoring the animals beyond 

 our most ardent expectations. All the portions of the animals figured in the 

 genera Streptolehe^Hs, Tetragonodon, Paramekodon, Rutiderina, also of the species 

 Asterope elliptica and teres {$), as well as in a great measure of Cytherella, have 

 been taken from dissections of animals which have been preserved in a dried 

 state for very many — in one case as long as twenty-three — years, and we are 

 satisfied that these drawings will be found to be almost as exact, so far as they 

 go, as those taken from spirit-preserved examples, though, no doubt, a seta or 

 spine here and there, or other minute character, will be inexact, or not re- 

 presented. 



It was not until our Monograph was nearly completed, and on the point 

 of going to press, that there appeared the splendid work of Herr. Gr. 

 W. Mliller on the Ostracoda of the Gulf of Naples. This work has, in the 

 case of some few species, anticipated our descrijDtions, and we have, as far as 

 possible, rectified our nomenclature in conformity with it. For the rest we have 

 thought it best to let our MS. go to press as it was originally written. 



Tlie species belonging to this section described from the Mediterranean by 

 Miiller, but not noted by us, are the following : — 



As an introduction to this part of the Monograph we here give a synopsis of 

 some distinguishing characters of the sections and families. For fuller account 

 of the families of the Podoeopa we would refer to pp. 65-67 of the first part of 

 this Monograph. 



4T2 



