274 Mollusca of Middlebury, Vt. and Vicinity. 



found it near Boston. It is not rare here, and is associated with 

 H. arbor ea^ under logs, &c., both in moist and in dry lands. Dr. 

 Gould has found it only near the water's edge. 



This species is remarkable for its close resemblance above to 

 H. indentaia, Say, and beneath to H. arborea, Say. This re- 

 semblance is so striking, that a view of either side alone would 

 lead any one to place it with one or the other of these species. 

 A comparison of both sides easily distinguishes it.* 



H. multide?itaia, Binney. This beautiful little species was 

 discovered by Dr. Binney several years since, in Strafford, Vt. 

 Subsequently it has been found in this town very sparingly. It 

 is remarkable for the roseate color of the animal, seen through 

 the semi-transparent shell, and for the teeth. These are placed 

 in rows, far within the aperture, on its outer and lower half. 

 The rows are curved, with the convexity towards the aperture, 

 and contain four to six closely approximate teeth, appearing 

 through the shell like glass beads. The number of rows varies 

 from two to four, of which never more than one is visible from 

 the aperture. 



H. tninuscula, Binney. This species, recently discovered in 

 Ohio, has also been found in this town. Under a log, in wet 

 land, I found a large number, but have not found many else- 

 where. It exactly resembles H. pulchella, Mull, in size and 

 color, but that species is easily distinguished by its reflected hp, 

 enlargement of the last whorl, and small umbilicus. 



VlTRINA. 



V. pellucida, Drap. This species was observed first on this 

 continent by Say, who remarks that it " was first found near 

 Coldwater lake, in lat. 48f° N., under stones, fallen timber, &c. 

 It afterwards occurred, in similar situations, until we approached 

 Lake Superior, when it was no more seen. No species of this 

 genus has been hitherto found in this country ; this shell is there- 

 fore the more interesting. The specimens which we collected 

 do not appear to differ in any respect from those of Europe."! I 



* A description of t'lis species, under the name of iJ. Janus, had been prepared 

 for this article, when I received, through the kindness of Dr. Binney, the remain- 

 der of his excellent monograph, printed in anticipation of the next No. of the Bost. 

 Jour. Nat. Hist., in which, not aware that any one had discovered it prior to Dr. 

 Gould, he has quoted from Dr. G.'s MSS. The two following species are descri- 

 bed by Dr. B. in the same paper. 



t App. Long's Exped. to Source of St. Pet River. 



