8 TRANSACTIONS OF THE WAGNER FREE 



aperture short, laterally compressed ; lip reflected, thin, body callus distinct, 

 grooved at the outer commissure, pillar simple ; Ion. of type-specimen (decol- 

 late) 13.0; of last whorl 9.0; of aperture 5.0; max. lat. of shell 4.5 mm. 



Ballast Point silex-beds ; collected by W. H. Dall, a single specimen. 



This species is at once separable from the preceding by the elongated and 

 slender form which it exhibits. It is smoother than the others, if the specimen 

 found be a fair example of the sculpture. 



It is named in honor of Dr. R. E. C. Stearns, of California, who in 1869 

 visited Ballast Point and by his discovery of Ecphora quadricostata on Long 

 Key determined the presence of beds of the Miocene age. 



Subfamily HELICIN^. 



Genus HELIX Linnet. 



Subgenus Hygromia Risso. 



Section Jeanneretia Pfeiffer. 



The type of this section is H. mnltistriata Desh., and it includes, among 

 other recent forms, H. Parraiana Orb., and four or five others from the 

 Cuban region. Among fossil species can be noted those here described, and 

 from France, H. Presiwichii Deshayes, H. rara Boissy, and H. Nojieli Des- 

 hayes. H. aquensis De Serres, from the Middle Tertiary of Aix, is another 

 related form. H. Prestiuickii and rara are from the Eocene Lignites of Eper- 

 nay ; H. Noueli from the Calcaire de Beauce of France and equivalent beds in 

 Northern Italy. 



The most obvious feature of all these shells is the constriction which takes 

 place just behind the reflected lip, and the thickened ridge which reinforces 

 the lower lip internally near the base of the pillar, yet which is too obscure 

 and too irregular to be called a tooth. These shells are mostly rather de- 

 pressed, with a moderately sculptured surface, and a closed or narrowly per- 

 forated umbilicus. Some are turbinate in form, like the type of the section. 

 All have a reflected lip and an oblique aperture. Their close relation to the 

 Cuban species already mentioned is obvious, and their parallelism of character 

 with those of the earlier beds of the Paris basin is in harmony with the want 

 of synchrony between otherwise analogous faunae of Europe and America 

 which has been pointed out on several occasions. 



Helix latebrosa n. s. 

 Plate I, figures 8, S a. 

 Shell rotund, full and rounded above, five-whorled ; surface marked by 

 incremental lines and faint wrinkles, and by traces of faint microscopic spiral 

 striation ; suture very distinct, its anterior margin not appressed ; whorls full, 

 the last slightly flattened behind the periphery of the last half of its extent, 

 base rounded with a small, deep, tube-like umbilicus ; constriction behind the 

 reflected lip, deep, wide, and more strongly wrinkled than the rest of the 



