322 APPENDIX, BULIMULUS. 



Helix rocayana ORB., Mag. .de Zool., 1835, p. 13. Bulimus 

 roeayanus ORB., Voy. Amer. Merid., p. 277, pi. 33, f. 6, 7. PFR., 

 Monogr., ii, p. 35 ; iii, p. 313. 



With the form of B. trichodes, rivasii, etc., this species differs in 

 completely lacking an umbilicus, and in the sharp spiral columella. 

 It especially resembles B. montivagus. It buries itself in the earth 

 in the dry season, and when the rains come climbs large trees. It 

 is rare, and on account of its extreme fragility, difficult to preserve. 

 It is one-of the most beautiful species of the region, but is very re- 

 stricted in distribution. 



B. VOITHIANUS (Pfeiffer). PI. 51, figs. 18, 19. 



Shell perforate, rather fusiform, oblong, somewhat solid ; roughly 

 granulated by longitudinal wrinkles and concentric impressed lines ; 

 dull white. Spire conic, the apex rather acute. Whorls 6 to 7, a 

 trifle convex, the last a little shorter than the spire. Columella 

 subvertical, blackish-chestnut. Aperture narrow, oblong, chestnut 

 colored inside ; peristome simple, unexpanded, the terminations 

 joined by a brown callus ; columellar margin dilated, reflexed, 

 overhanging, not covering the deep perforation. Alt. 19, diam. 

 7* ; alt. of aperture 9 mill. (Pfr.). 



Chili (Gay, Bridges). 



Bulimus voithianus PFR., P. Z. S., 1846, p. 114 (Jan. 26, 1847) ; 

 Monogr., ii, 210; iii, 431; iv, 496; vi, 143; viii, 176. Of/m- 

 licus (Mesembrinus} boithyamts H. & A. ADS., Gen. Rec. Moll., ii, 

 p. 157. Bulimus meridionalis REEVE, Conch. Icon., pi. 21, f. 131 

 (June, 1848). Bulimus feisthameli HUPE in Gay, Hist. Chile, viii, 

 p. 114, Atlas, pi. 3, f. 7 (1854). 



"Of a cylindrically oblong form, its dead white surface curiously 

 engraved with obtuse or obsolete scales, and the interior stained 

 with a deep purple-red color. The columella has an angular prom- 

 inence." The exact locality is unknown. As the apex has not 

 been examined, the subgeueric reference of the species is doubt- 

 ful. It may be a Bulimulus of the section Peronceus or Lissoacme. 



