PULLASTRA 



Venus, Pars, Lam. 

 Vetierupis, Lani. 



■^^^ ■ ... './■ 



TESTA aequivalvi, transversa, inaequilaterali, 

 latere antieo breviore, dentibus cardinalibus 

 in utraque valva tribus eontigiiis, interdum 

 apicibus subemarginatis. Impressiones muscu- 

 lares duae, laterales, siibrotundatae. Inipressio 

 museularis pallii sinu magno. Ligamentum 

 externum^ valvarum marginibus dorsalibus 

 suboccultatum. 



To say that Ziwwe himself, coidd he have lived till the 

 present time to know what we know, and to see what 

 our eyes every day behold of the hahits of the mollus- 

 cous animals, would have acknowledged the necessity 

 of establishing many of the new genera that have heen 

 founded since his time, is not to offer a very high compli- 

 ment to his judgment as a naturalist. We go much 

 further, for we say that the most bigoted of his followers, 

 few of whom can suffer the establishment of a new Genus 

 because not founded by Linne, can neither avoid being 

 convinced of the necessity of several dismemberments to 

 which the Linnean Genus Venus has already been sub- 

 jected^ nor deny the necessity of further subdivision. 

 We have scarcely yet meddled with that intricate Genus, 



