136 THE NAUTILUS. 



Vilrea indentala (Say). Occasionally at 1, 2, 3 and 4. 



Vilrea rhoadsi (Pilsbry). Uncommon, found at 1. 



Striatura ferren (Morse). Rnre, and only found at 1. 



Stri at ara milium (Morse). Common at 1, occasionally at 2, 

 3 and 5. 



Eucmmlus fulvus (Miiller). Not satisfactorily distinguished 

 from the next species. 



Euconulus chersiniis (Say). Common at 1, fairly common at 

 3 and 5. 



Zonitoides hammonis (Strom). Common at 1, 2, 3 and 5. 



Zonitoides arbor ea (Say). Abundant everywhere. 



Zonitoides minmcida (Binney). Rarest of the Zonitidae, found 

 only at 1. 



Zonitoides exigua (Stimpson). Common at 1, fairly common 

 at 3. 



Philomycus carolinianns (Bose). Occasional at 2 and 3. 



Pallife'ra dorsalis (Binney). Occasional at 2 and 3, 



Pyramidida alternnta (Say). Occasional at 2, common at 4. 



Pyramidida cronkhitei anthonyi (Pilsbr}'). Occasional and 

 generally distributed. 



Hdicodiscus parallelus (Say). Common and generally dis- 

 tributed. 



Pimctvm pygmaeum mtnutissimum (Lea). Occasional at 1. 



Sucdnea retusa (Lea). Fairly common at 2. 



Succinea ovalis (Say). Uncommon at 2 and 3. 



Sucdnea ovalis totteniana (Lea). Common at 3. 



Sucdnea avara (Say). Common at 5. 



Strohilfyps labyrinthica (Say). Common in one spot (about a 

 decaying tree- top) at 1. 



Bifidaria contrncta (Say). Found at 1. 



Bijidaria pentodon (Say). Common at 1 and 3, the com- 

 monest Pupillid. 



Bifidaria tappnniana (C. B. Adams). Found at 1 and 3. 



Vertigo goiddii (Binney). A few specimens from 1 were con- 

 sidered to be this species. 



Vertigo bollesiana (Morse). Occasional at 1. 



Vertigo ventricos^a (Morse). Fairly common at 1. 



Vertigo ovnta (Say). Fairly common at 1. 



Vallonia pnlchella (Miiller). Rare, at 1 only. 



