22 EUC ALODIUM. 



The ribs (pi. 8, fig. 18) are closer than in E. speciosum. 

 The internal pillar is very slender and straight, merely di- 

 lated a little near the floor of each whorl. 



Other specimens before me from Cordova are much smaller, 

 down to 40 mm. long. The variations in the series lead me 

 to believe that the varieties of E. speciosum are without much 

 value. 



Var. STREBELI v. Mart. PI. 2, figs. 4, 5. 



Identical with E. boucardi in form, sculpture, pillar and 

 columellar fold, but more brownish, quite like E. edwardsia- 

 num; remaining whorls from 8% to 11, weakly puffed at the 

 sutures; form much as in E. edwardsianum, but it is more 

 closely ribbed, with crowded spirals in the interstices. There 

 are about 116 riblets on the broadest whorl (12 mm. broad). 



Dos Arroyos, a village on the road from Jalapa to Naolingo, 

 and Chirimoyo, a village near Jalapa. 



E. boucardi form B., STREBEL, t. c., p. 71, pi. 5, f. 8, 9. 

 E. speciosum var. Strebeli v. Martens, Biologia, p. 262. 



Var. MINIMUM v. Martens. 



Small, brownish-straw colored ; 8 whorls remaining ; Length 

 39, diam. 10 mm. 



Cordova (Salle, Hoge) ; Atoyac (H. H. Smith). 



E. boucardi var. g CROSSE & FISCHER Moll. Mex. i, p. 381. 

 E. speciosa var. minima v. MART., Biologia, p. 262. 



Var. FISCHERI v. Martens. PI. 2, figs. 10, 11. 



Somewhat solid, subdiaphanous, with a silken luster, pale 

 tawny, whorls 8% to 9%, minutely, arcuately rib-striate, the 

 last suddenly descending, quite shortly free. Length 36, 

 diam. 9% mm. 



Chiquihuitl, State of Vera Cruz (A. Salle). 



Eucalodium speciosum Dkr., CROSSE & FISCHER, Moll. Mex. 

 i, p. 379, pi. 15, f. 7, la.E. speciosum f var. fischeri v. MART., 

 Biol. p. 262. 



E. CEREUM Strebel. PI. 7, figs. 4, 5, 6, 7. 



Shell with some silky luster, thin though also strong, rather 

 translucent, clothed with a very pale yellowish cuticle, some 



