AURIS. 101 



A. bil<ibial<( var. melanostoma IMoricaiid. PI. 39, figs. 12, 13. 



Flange around the mouth, with columella and parietal wall, 

 black. 



Ilheos, Brazil (Moric.). 



Helix maximiliana Fer. var. melanostoma MORIC., Mem. Soc. 

 Geneve, vii, p. 431 (1836). 



Figure 12 represents a young shell which has not formed the 

 flange, but shows the black parietal wall and columella characteris- 

 tic of this variety. 



The following figures represent this form : Conch. Cab., pi. 5, f. 

 10, 11 ; Fer., Hist., pi. 152, f. 6 ; Rve., f. 201 b. The other figures 

 cited above illustrate the typical bilabial". 



A. EGREGIA Jay. PI. 39, figs. 14, 15, 16. 



Shell perforate, ovate-conic, obese, solid, opaque and cretaceous. 

 Pink or white, often marked with brown on latter part of body- 

 whorl, and occasionally sparsely spotted. Earlier whorls with short, 

 wide spaced vertical folds under sutures, the last whorl showing 

 more or less distinct, short, obliquely descending folds above the 

 periphery, often nearly obsolete ; the base defined by an obtuse keel ; 

 surface everywhere finely roughened. Whorls about 4*. 



Aperture vertical, white within, ear-shaped ; lip broadly reflexed, 

 thin-edged ; inner margin produced forward in a callous flange, 

 which is continued across the parietal wall, and forms an elevated 

 rim surrounding the aperture except for a wide sinus at the upper 

 curve of outer lip. Peristome white or faintly yellow ; columellar 

 fold and parietal wall white. 



Alt. 38, diam. 25 mill. 



Alt. 33, diam. 21* mill. 



Brazil, Ilheos (Moricand) ; Prov. Bahia (Castelnau). 



Pupa egregia JAY, Catal. Rec. Shells in coll. John C. Jay, M. D., 

 edit. 2, 1836, [p. 81], pi. 1, f. 4, 4. Helix maximiliana var. minor 

 MORICAND, Mem. de la Soc. Phys. et d'Hist. Nat. de Geneve, vii, p. 

 431 (1836) ; also viii, p. 141, pi. 3, f. 4 (living animal). Figure 

 copied in M. E. Gray's Figs. Moll. Anirn., pi. 302, f. 6. Bulimus 

 egregius MORCH, Catal. Yoldi, p. 28. HUPE in Castelnau's Ex- 

 ped. Moll., p. 58, pi. 6, f. 2 ; pi. 9, f. 3. B. bilabiatus var. B. PFR., 

 Monogr, ii, p. 91 ; conf. Mai. Bl., v, 1858, p. 167. 



