328 PROCEEDINGS OF THE ACADEMY OF [1896. 



UNDESCRIBED OR UNRECOGNIZED SPECIES. 



S. orbicularis Maynard. Contr. to Sci., I, pi. 16, f. 6a, b. Un- 

 described ; no locality assigned. 



S. viola Maynard. Contr. to Sci., I, pi. 16, f. 5a, b. Undescribed ; 

 no locality assigned. 



Pupa capillaris Beck. Index Molluscorum, p. 82. Undescribed. 

 " I. Antill." 



Pupa elegans Beck. Index Molluscorum, p. 82. Undescribed. 

 "I. Antill." 



Pupa conus Beck. Index Molluscorum, p. 82. Undescribed- 

 " I. Antill." 



Piipa strohilus Beck. Index Molluscorum, p. 82. Undescribed. 

 "I. St. Domingo." 



Helix (Cochlodonta) decumanus For., Prodr., p. 59 (undescribed) 

 =:Pupa decumana Gray, Ann. of Philos., N. ser., 1825, IX, p. 413, 

 referring to Lister, pi. 588, f 47, is unrecognizable with any reason- 

 able degree of certainty, but may be Pupa multicosta Kiister. 



Turbo alvearia Dillwyn, Descript. Catal., II, p. 862,^=Bulivius 

 /wswsBrug., Encycl. Meth., I, p. 348,=Lister, pi. 588, f. 49, is an 

 unrecognizable form, similar to Gibbus palanga. 



DESCRIPTIONS OF NEW AND LITTLE-KNOWN SPECIES AND 



VARIETIES.* 



Cerion uva desculptum. PI. XI, fig. 1. 



Shell similar to C. uva, but differs in lacking the strong, regular 

 ribs characteristic of that species, or in having them very few, weak 

 and irregular. 



Alt. 22, diam. 9 ; apert. alt. 7?, width 6J mm. 



Alt. 19, diam. 9 ; apert. alt. 7, width 6 mm. 



Curacoa. 



A sectionized specimen shows no internal sets of laminse, but these 

 are frequently wanting in specimens of the typical C. uva. Of the 

 latter a good many figures have been published. 



Cerion incrassatum microdon Pilsbry & Vanatta. PI. XI, fig. 5. 



Shell varying from cylindric to'stout oval, strong and solid ; whit- 

 ish with some inconspicuous gray flecks. Whorls 85 to 9 J, the first 

 one smooth, next finely and regularly costellate^ following whorls 



*See also Proc. Acad. Nat. Sci., Phila., 1895, p. 206. Separate copies issued 

 May, 4, 1895. 



