Xatura/ Hisloiy \oics from XdiI/i Carolina. 215 



the next species, and that, so far as our local list is concerned, 

 this species must be eliminated. Knowing the care and 

 accuracy of Mr. Binney's work, we feel justified in setting 

 this shell aside as one not found here. 



20. Z. fidigbiosus, Griffith. This fine species is obtained 

 here, though somewhat sparingly'. It occurs at various 

 elevations, up to 4000 feet or a little more. Its habit is the 

 same as that of No. 18, preferring a thin covering of leaves, 

 with the foot spread upon the ground in dry weather. The 

 Zonitcs are far more active than the other shells in cold 

 weather, and this species is no exception to the rule. The 

 eggs are deposited in agglutinated masses among the leaves, 

 and many of them are devoured by the multitude of ^ularis 

 and cuspidatiis found with them. This accounts, without a 

 doubt, for the comparative rarity of the larger species of 

 Zonites here. The eggs and the young are devoured by these 

 highly carnivorous and rapacious smaller species, whose 

 peculiar shells protect them in a large measure from others 

 of like habit, and from themselves as well. 



21. Z. Iccvigatiis Pfr. Same stations and same distribution 

 as the last. This is a very variable species in color, texture, 

 and sculpture. I have collected it in Ohio, Kentucky, Ten- 

 nessee, North Carolina, Texas, Georgia, Alabama, Missis- 

 sippi, and Florida. The most aberrant forms were in Ruth- 

 erford Co., Tenn., and at Ellijay, Ga. The former was as thin 

 and pellucid as Vitrina Ihnpida, the shells being extremely 

 fragile and delicate. They were much flattened and the 

 umbilical opening was much larger than in typical Icevigatus. 

 Not thinking at the time that this shell could be the species 

 in question, I gave it the manuscript name Z. perfragilis 

 Nov. Sp. Unfortunately these shells were lost or misplaced 

 and I have not been able to find them. The other variety 

 from Ellijay, I was for a long time disposed to refer to Z. 

 caducus Pfr., but I am now satisfied that they are, as deter- 

 mined by Mr. Bland, a rare form of this species. Very large 

 and fine specimens, of the tj-pical color and sculpture, were 

 taken at High Bridge, on the Cincinnati Southern Railroad, 

 in Mercer Co., Ky. A full set of the varieties of this species, 

 from the various States in which it occurs, makes a beautiful, 

 interesting, and highly suggestive addition to any cabinet of 

 our land shells. 



