448 Zoological Society. 



his family,' his sole function appears to be, to develope and excrete 

 his spermatozoa, and then die out of the way to make room for a 

 successor in the marital rostrum. 



In all physiology we know of no case parallel with this ; and the 

 only light upon it at present appears to us to be afforded by the dis- 

 covery, also due to Mr. Darwin, that in other species of these genera a 

 complete separation of the sexes is to be met with. Are some of the 

 transitional species between the monoecious and dioecious forms a sort 

 of hermaphrodite ' free-martins ' in the male division, requiring ex- 

 traneous assistance ? 



But we must conclude, and those of our readers who understand 

 that scientific zoology is a different matter from more or less effectu- 

 ally tanning aiiid naming animal exuviae, will, we are sure, join us in 

 offering to Mr. Darwin — what even a Royal medal attains its only 

 true value by expressing symbolically — the hearty thanks of all his 

 fellow-workers. 



PROCEEDINGS OF LEARNED SOCIETIES. 



ZOOLOGICAL SOCIETY. 



July 22, 1 8.51. —John Edward Gray, Esq., F.R.S. &c., Vice- 

 President, in the Chair. 



On some genera of Shells, established in 1807 by the 

 LATE H. F. Link. By Dr. Herrmannsen, of Kiel. 



In several programs, hitherto not at all taken notice of by any 

 Conchologist, the renowned Botanist Link of Berlin, then Professor 

 of Natural History, Chemistry and Botany at Rostock, in the 

 course of^the years 1806 to 1808, has published an account of the 

 Collections of the Rostock University. These little treatises seem to 

 be very rare, nor do I remember ever to have found them mentioned, 

 before my ' Index Generum Malacozoorum ' recorded them. Yet 

 they may claim priority in many instances, which I hope will be re- 

 deemed by simply noticing their contents. The German titles of 

 these octavo pamphlets are as follows : — 



Beschreibung der Naturalien-Sammlung der Universitat zu Ros- 

 tock, von Dr. H. F. Link. Rostock. Gedruckt bei Adlers 

 Erben. 



Erste Abtheilung; zum Weihnachtsfest, d. 25 Dec. 1 806 (p. 1-48). 



Zweite Abth.; zum Osterfest, d. 29 Marz 1807 (p. 49-98). 



Dritte Abth.; zum Pfingstfest, d. 17 Mai 1807 (p. 99-165). 



Vierte Abth.; zum Weihnachtsfest, d, 25 Dec. 180/ (p. 1-30). 



Fiinfte Abth.; zum Osterfest, d. 7 April 1808 (p. 1-38). 



Sechste Abth.; zum Pfingstfest, d. 5 Juni 1808 (p. 1-38). 



Passing over those genera which are either superfluous because 

 formerly rightly published under other names, or unhappily con- 

 trived, I will hint at those that may deserve to be attended to. 



