TAYLOR: ON HELIX ARBUSTORUM. " 243 



Helix Canigonensis Boubee. Bull. Hist. Nat., p. 36, 1833. 



H. Xaiarfii Yaxme.?,. Ann. Sc. Nat., vol. ii., p. 122, 1834. 



a. alpestris Ziegler. Rossm. Icon. L. & S. Moll., part 5, 1834. 



H. Wittmannii Zawadsky. Rossm. Icon. L. & S. Moll., p. 5, 

 f. 279^, 1837. 



Cingulifera arbiistoruvi Held. Isis, p. 911, 1837. 



Helix planospira Gras. Descr. Moll, de I'lsere, p. 36, pi. iii., 

 f. II, 1840. 



H (zthiops Bielz. Verh. u. Mitth. d. Siebenb. Ver., iv., 1853. 



H. (Ariafiia) afbustortim Moq-Tand. Hist. Moll., vol. ii., 

 p. 123, pi. xi., f. 1—4, 1855. 



H ( Campylcea ) styriaca Frauenfeld. Verh. zool. bot.-Ges. Wien, 

 xviii, p. 149, 1868. 



The foregoing synonymy is given mainly on the authority of 

 Reeve. Helix goihica of L., regarded by Reeve as referable to 

 this species, is thought by Dr. Jeffreys to be more likely to be 

 H. rotundata Mlill. H. styriaca Frauenfeld andZT. ai/iiops Bielz, 

 are considered to belong to this species on the authority of Dr. 

 Kobelt of Frankfort. 



Development, &c. 



The eggs, which are about 3 mill, in diameter, are enclosed 

 within an opaque and yellowish envelope, which probably has 

 crystals of lime dispersed through its membranes, as in some 

 other species. They are deposited from July to September, and 

 vary in number from 30 to 50. They hatch in 15 to 20 days, 

 and are adult at the commencement or middle of second year 

 (Moq.-Tandon). 



Miss F. M. Hele of Bristol, to whom I am under great 

 obligations for her great kindness and willingness to assist in 

 these papers, modifies and supplements the foregoing, and says : 

 *' The eggs are deposited in clusters of from 50 to 80 under the 



