CATALOGUE SHELLS. 



555 



I have dedicated to my friend, Dr. Seliow, whose researches in 

 Natural History for several years past in the interior of Brazil;, are 

 well known to the scientific world. 



40. SUCCINEA FRAGILIS. 



S. testa ovato-acuta, diaphana, ventricosa, transversim striata, oblique 

 subrugosa ; spird brevi ; long, -^^ paulo minus ; lat, ; poll. 

 Habitat ad irisulam Juan Fernandez. Mus, Brit,, nost., Brod. 



41. SUCCINEA PATULA. 



S. testa diaphanaf ovato-rotundata, ventricosissima, transversim creber- 

 rime striata ; spira brevissima ; apertura patuld ; long. ^ paulo 

 plus ; lat. ^ paulo plus ; poll. 

 Habitat ad insiilam Juan Fernandez. 



Marinula. Nov. Genus, 



Character Genericus. 

 Testa ovatO'productd, suh-solidd ; apertura ovatd, integrd ; colu- 

 7nelld bidentatdj et basin versus uniplicatd ; dentihus magnis sub- 

 remotis conniventibuSj suj)eriore maximo ; operculum nullum. 



42. Marinula pepita. 



M. testd ovato-productd, viridi-fuscd i anfractibus sub-tumidis ; spird 

 brevi ; aperturd nigricante ; dentibus plicdque albidis ; long, -/g ; 

 lat. f^; poll. 



Habitat ad insulam Chiloe. Mus. Brit., nost., Brod., G. Sowerby. 



This animal, which I have thought it necessary to assign to a 

 new genus, appears to have for its nearest neighbours the genera 

 Auricula and Pedipes. It was found on the wooden piles which sup- 

 port the mole in the Bay of San Carlos, in Chiloe, below the wash of 

 the high water. The mole stands out into the sea, and there is no 

 fresh water near it, save a very little rill, which discharges its tiny 

 stream more than fifty yards off. 



43. Lymn^a diaphana.— No. 349 MSS. 

 L, testd turritd, transversim substriatd, anfractibus ventricosis ; long. 

 4 J ; paulo plus ; lat, ; poll. 



Habitat ad fretu7n Magellanicum (Cape Gregory). Mus. Brit., 

 nost.f Brod. 



This shell was found in the fresh-water ponds in the neighbour- 

 hood of Cape Gregory, which is on the continental side of the 

 eastern end of the Strait of Magalhaens. 



