10 EUCALODIUM. 



near San Juan Miahuatlan. Fig. 21 of pi. 8 represents the 

 sculpture of a specimenfrom Orizaba, magnified 5 diameters. 

 In some shells the irregular malleation and the subsutural 

 Wrinkling are much less developed. 



Var. minor 'C. & F.,' Martens. Smaller than the typical 

 form, and the malleation of the shell is less distinct and less 

 rough; whorls 8 l / 2 , the last abruptly descending, and pro- 

 duced forward more than in the typical form. Length 65, 

 diam. 16!/o, length of the aperture with peristome 14, width 



12 mm. (C. & F.) 



The part of the Mission Scientifique au Mexique in which 

 this form is figured, is still unpublished, though quoted by 

 Prof. v. Martens. 



E. SUMICHRASTI CROSSE & FlSCHER. PL 1, figS, 10, 11, 



Shell slightly arcuate-subrimate, cylindric-turreted, rather 

 thick, solid; violaceous-brown under a shining, thin, rather 

 deciduous olivaceous cuticle. Spire a little tapering, widely 

 truncate ; suture impressed. 8 whorls remaining are a trifle 

 convex, rather narrow, regularly increasing, sculptured with 

 numerous delicate, close, subarcuate, but slightly projecting 

 riblets, the penultimate whorl slightly malleate, last whorl 

 slightly descending, shortly free, slightly protracted forward, 

 subangular above, having a slight obtuse keel below the middle. 

 Aperture oblique, irregularly angulate-circular, the base 

 somewhat effuse, interior white; peristome continuous, free, 

 thickened, narrowly reflexed throughout, white; columella 

 deeply situated, hardly folded. Internal axis unknown. 

 (C. & F.) 



Length 61, diam. 18 mm. ; apert. with perist. 14^ mm. 

 long, 13 wide. 



Length 66, diam. 19 mm. ; apert. with perist. 15 mm. long, 



13 wide. 



Southern Mexico: State of Chiapas (F. Sumichrast). 



Eucalodium sumichrasti C. & F., Journ. de Conchyl. xxvi. 



p. 250 (1878) ; xxvii, p. 46, pi. 2, f. 2 (1879) ; Miss. Scient. 



Mex., Moll, ii, p. 665, pi. 72, f. 1, la. MARTENS, Biologia, 



Moll., p. 633. 



