Binney on Terrestrial Moll asks. 131 



tion of what appears to me the type of Bui. dedlbiUvs. 

 The species varies considerably, but never sufficiently to 

 authorize the quotation of alternalus^ Binneyanus^ Schiede- 

 anns, and patriarcha as synonyms. 



It is found in large quantities in Texas, Alabama, North 

 Carolina, Missouri, and Arkansas. Future researches will 

 probably prove it an inhabitant of the neighboring South- 

 western States. It also occurs fossil in the Postpleiocene. 



Say's description is as follows : — 



H. DEALBATA. Shell cotiical, oblong, thiu and fragile, some- 

 what venlricose; volution 6-7, wrinkled across, wrinkles more 

 profound and acute on the spire ; spire elevated, longer than the 

 aperture, sub-acute ; aperture longer than wide, labrum not i-eflect- 

 ed ; umbilicus small and profound. 



Length more than three-fourths of an inch, breadth nine-twen- 

 tieths of an inch. In the Cabinet of the Academy and Philadel- 

 phia Museum. Inhabits Missouri and Alabama. 



In outline it resembles a Bulimns. Four specimens of this 

 species were sent to the Academy from Alabama, by Mr. Samuel 

 Hazard; and a single depauperated specimen was found by myself 

 on the banks of the Missouri. 



Bulitrnts p/iT/soides Reeve (No. 507) corresponds exactly 

 to a variety of dealbatus sent from Alabama by Dr. Show- 

 alter. It is quoted by Pfeiffer (iii. 418) as a synonym of 

 B. melo Quoy. 



Pfeiflfer quotes B. Liquabilis Reeve as a variety of B. 

 conjinis Reeve. I am inclined to consider them both as 

 varieties of dealbatus — but subjoin Reeve's descriptions, 

 having copied his figures respectively on pi. 88, figs. 6 

 and 7. 



BuLiMus coNFiNis. Bul testa ovata, subventricosa, profunde umbil- 

 icata, anfr. 6, rotundatis, tenue striatis, columella late dilatata, subreflexa, 

 aperturu orbieulari, labro simplici ; pelhicido-corneu, opaeo-albido varie- 

 gata. Hab. Texas. 



BuLiMUS LIQUABILIS. Bul. testS. ovato-conica, ventricosS, umbili- 



