I'.'!.' ORTHAI.ICrs. 



unexpandt -d, broadly bordered inside with a blackitfh -purple callus; 

 tin- margins joined liy a somewhat tliick black -browo callus, strongly 

 thickened outside at the base of the coliiinella. Alt. 9<>, diam. 52, 

 length of aperture 53, width 33 mill. (X/mftl.) 



Tarii/in'ii, /v/s/em Peru ( Moricand). 



(h-f/m/irits fnif/fstifus SnrTTI.., Notitia- Malacologies i, ]). 58 (ex- 

 cln-ive of synonymy), pi. 5. f. 1 (1850). 



Intermediate between 0. gallina- sultana and 0. dennisoni ; differing 

 from 0. dennisnui in the thinner, more inflated shell with more com ex 

 whorls, the blackish-purple bands, and color of the aperture and 

 columella; from 0. gattvna-Qiiltccna it differs in the more solid shell, 

 which is opaque and more slender, in the thickened black-brown col- 

 umella, and color of the aperture and pcristoine (Sltntll.). 



Subgenus METOKTIIALICUS Tilsbry, 1899. 



Porprfiyrobaphe, in part, of Shuttleworth and other authors. Jlnl- 

 in/ts, BKODICKIT, Zoological Journal iv, p. 222 (1828), not of 0. F. 

 Miiller, 1781. 



This new group includes species with pitted nepionic whorls as in 

 tvpical (h-f/Kilt'cus, but differing in the solidity of the shell and its 

 thick, blunt or reHexed lip. 



Gliol I 1 OK O. KKASKUl. 



The species placed here are related to typical < h-t/m/irns in colora- 

 tion and sculpture, differing in the less ventricosc lorm, and de\ el- 

 oped peristome. < >. t/<t/iir/ust</iti and O. ii/n/iisti are stated to have 

 smooth apical whorls; and if this proves to be true, they nui-t be re- 

 mo\ed to r 



I\l'l/ t l SJK'fit'S. 



>i. Coliiinella with a rather strong fold above ; aperture more than 

 half the length ot the shell ; having bands of blackish spots or 

 >treaks. 



/>. Aperture purplish-Meshy within. j'rusi'ri , p. I'J.'l. 



//'. Aperture ami peri~toinc milk-white, columella making an 



angle with the basal lip. <j<il<i,-tnst,,tii<i, p. P.M. 



n\ Columella not folded above, but twisted below; aperture h--s 



than half the length of -hell, of a deep livid rose color, the lip 



whiti>h; shell very long, alt. '.'.'I, diam. .'it',, aperture .'17 mill. 



buckleyi, p. 193. 



