HELIX. 149 
alt. 32 millim.; pale reddish, with small bands, granulation obsolete); one from 
Durango belongs to hégeana rather than to hegewischi, &c. 
The locality “ Alameda county, California,” for H. buffoniana, is expressedly stated 
to be incorrect—cf. Binney, Terr. air-breath. Moll. N. Am. v. p. 381, and Manual of Am. 
Land-Shells, p. 471. 
The type is known to me only from Férussac’s figure. The umbilicus is, in all 
specimens I have seen, nearly, but not entirely, covered by the columellar margin. 
The bands are nearly always three in number, more or less distinct, the middle one 
falling into the suture at some distance behind the aperture, and thus corresponding to 
the third band of H. pomatia, H. nemoralis, H. eximia, H. ghiesbreghti, &c. The 
lower one corresponds to the fourth band of H. pomatia and H. aspersa, the suture 
being bent down to, and even to a little below, it at the aperture, as in //. aspersa. 
The upper one corresponds to the second band of H. pomatia, H. aspersa, and H. nemo- 
ralis. The breadth of the single bands is somewhat variable, the middle one being in 
some specimens broader, in others narrower, than the two others. The lower one is 
very indistinct in some specimens of var. buffoniana. Only in one specimen (of vat. 
hégeana) are the three bands near the aperture much enlarged and united into one 
dark mass. 
21. Helix eximia. 
Helix eximia, Pfr. in Philippi’s Abbild, neuer Conch. i. p. 153, t. 5. fig. 6 (1844) °; P. Z. S. 1845, 
p. 412; in Martini & Chemnitz, Syst. Conch.-Cab. ed. 2, Helix, i. p. 336. no. 336, t. 60. 
fige. 23, 24°; Monogr. Helic. Vivent. i. p. 829*; Reeve, Conch. Icon. vii., Helix, t. 97. 
fig. 529°; Tristram, P. Z. S. 1861, p. 230°; Crosse & Fisch. in Journ. de Conch. xxi, 
p- 276 (1873)"; v. Mart. in P. Z.S. 1875, p. 648°; Stoll, Guatem. Reisen und Schild. aus 
‘den Jahr. 1878-83, p. 198°. 
Helix (Odontura) eximia (Pfr.), Fisch. & Crosse, Miss. Scient. Mex., Mollusca, i. p. 242, t. 11. 
fige. 8, 3 a—d (living anim.), pp. 206-210, t. 13. figg. 7-12 (anatomy, radula, jaw)”. 
Odontura eximia (Pfr.), Strebel, Beitr. Mex. Land- und Siissw.-Conch. iv. p. 36”. 
Hab. N. Guaremata: Coban (Morelet 1, Salvin ® 1, Sarg '!, Conradt); mountains of 
Vera Paz, especially in the environs of Coban (Bocourt’°); Alta Vera Paz 
(Stoll *) ; Guatemala (Salvin °). 
W. Guaremata: oak-forests, in Upper Cholhuitz® ‘and near San Martin, about 6000 
feet above the sea; it extends on the western slope of the Cordillera higher up 
than I. ghiesbreghti, its lower limit about coinciding with the upper limit of 
that species (Stoll, in (itt.). 
Var. stolli: depressior, umbilico paullo latiore, fulva, fasciis fuscis, granulis distincte piliferis: diam. maj. 41, 
min. 31, alt. 28, apert. diam. 24, alt. obl. 21 millim. 
Hab. N. Guatemata: Vera Paz (Sto//). 
Somewhat variable in size and in the number of the bands; generally there are 
