114 AURIS-EUDOLICHOTIS. 



dislocated, forming long granules. Whorls 5J, slightly convex, with 

 well-marked suture which is narrowly margined on last whorl. No 

 pit or groove behind the outer lip. 



Aperture slightly over half the shell's length, a little oblique, 

 oblong; peristome narrowly reflexed throughout, and thick, white 

 or isabelline ; outer lip regularly curved or slightly bent inward at 

 the middle, a trifle thickened within from the middle down ; basal 

 margin narrowly rounded or subangular. Columella widened 

 above, bearing an obliquely entering fold, strong, high and white- 

 calloused in adult specimens. Parietal wall and root of columella 

 black-brown (rarely translucent-white). 



Alt. 47, diam. 19 mill. 



Alt. 40, diam. 18 mill. 



Alt. 35, diam. 17 mill. 



Island of Tobago ! (R. Swift) ; Montserrat Hills, Trinidad (Dr. 

 B. Sharp!). 



Voluta glabra GMEL., Syst. Nat., (13), p. 3436. WOOD, Index, 

 Test., pi. 19, f. 5a. Bulimus glaber DH. in Lam., An. s. Vert., viii, 

 p. 258. PFEIFFER, Monogr., ii, p. 89 ; iii, 373 ; iv, 442 ; vi, 78. 

 REEVE, Conch. Icon., pi. 54, f. 357. Helix (Cochlogena) auris 

 caprinus FER., Prodr., no. 442. Pelekocheilus caprinus BECK, 

 Index, p. 55. Pupa auris sileni GRAY, Ann. of Philos. n. ser., ix, 

 p. 412. Auricula sileni LAM., An. s. Vert., vi, pt. 2, p. 138 ; Encycl. 

 Meth., pi. 460, f. 4. Pelekocheilus undulatus BECK, Index, p. 55. 

 Ellobium flammeum BOLTON, Mus. Bolt., 1798. Bulimus cegotis 

 MENKE, Synops. Meth. Moll. Mus. Menkeauo, edit., 2, 1830, p. 26 

 " (Auricula Sileni Lam., Helix auris caprina Fer., Voluta glabra 

 Gm.) " ; no description. Not J5. cegotis Pfr., Conchyl. Cab. 



The typical A. glabra is a strong, solid shell when mature, with 

 thick lip, strong, callous columellar fold ; the base but little pinched, 

 and the aperture not much produced downward. It is decidedly 

 more solid than A. aurissciuri, and much less compressed below. I 

 know of no authentic localities for it on the Spanish main, nor on 

 Antillean islands other than those mentioned above. 



The figures show the main aspects of variation. Fig. 33, may be 

 regarded as altogether typical. Fig. 37 represents an albino spec- 

 imen collected by Dr. B. Sharp. 



Var. GRENADENSIS Guppy. PI. 41, figs. 38, 39. 



Smaller and more ventricose than typical glabra; very solid and 

 strong ; fleshy-brown and whitish, obscurely streaked, the streaks 



