THE BAHAMA ISLANDS 41 



Cerion glans varium Bonnet, Nassau. 



Cerion glans cinereum Maynard, Ragged Cay, N. P., Gun Cay. 



Cerion glans coryi Maynard, Nassau, near Fort Charlotte, and Egg Id., Eleuthera. 



Cerion glans neglectum Maynard, Nassau, and Great Stirrup Cay. 



Cerion glans griseum Maynard, near South Bight of Andros Id. 



Cerion glans bimarginatum Maynard, Green Cay and Little Golding Cay, Andros. 



Cerion (Strophiops) maynardi Pilsbry and Vanatta, Rum Cay, Eleuthera. 



Cerion (Strophiops) blandi Pilsbry and Vanatta, Turks Island. Fossil at Glass 



Window, Eleuthera. 



Cerion (Strophiops) eximium Maynard, Cat Id., Nassau, N. P. 

 Cerion (Strophiops) eximium fraternum Pilsbry, Cat Island. 

 Cerion (Strophiops) agrestinum Maynard, south side of New Providence Id. 

 Cerion (Strophiops) oweni Ball, Indian Hole, Little Abaco; Sugarloaves, and also 



the south side of Great Abaco opposite Marsh Harbor; Grand Bahama. 

 Cerion oweni incisum Ball, Sweeting's village and Stranger Cay, Abaco. 

 Cerion oweni vermiculum Ball, Mathews Point, west side Great Abaco. 

 Cerion (Strophiops) bendalli Pilsbry and Vanatta, Abaco. 

 Cerion (Strophiops} martensi Weinland, Crooked Island. 

 Cerion (Strophiops) multistriatum Pilsbry and Vanatta, Crooked Island. 

 Cerion (Strophiops) marmoratum Pfr., Fortune Id. 

 Cerion (Strophiops) fordii Pilsbry and Vanatta, Bahamas (Andros?). 

 Cerion (Diacerion) bryanti Pfr., southern part of Inagua. 

 Cerion (Diacerion) rubicundum Menke, northwest point and eastern end of Inagua 



Island. 



Cerion (Diacerion) heterodon Pilsbry, Inagua. 

 Cerion (Diacerion) dalli Maynard, Inagua. 



Cerion (Diacerion) duplodon Pilsbry and Vanatta, Bahamas. (Inagua group?) 

 Strobilops hubbardi Brown, Watlings Id., also Florida, etc. 

 Pupoides marginatus Say, var. modicus Gould, Andros, Nassau, Turks Id. Also 



Haiti, Bermuda, Florida. 

 Biftdaria servilis Gould, Andros; N. P.; Watlings Id., Turks Id.; also Jamaica, 



Bermuda, etc. 



Vertigo ovata Say, Mangrove Cay, Andros; also Cuba, Florida, etc. 

 Subulina octona Bruguiere, N. P., Antilles generally. 

 Opeas octonoidea C. B. Adams, N. P.; Mangrove Cay, Andros. 

 Opeas subula Pfr., N. P., Great Abaco; Great Inagua; Haiti; Key West, Florida. 

 Opeas micra Orbigny, N. P.; also South America. 



Opeas paupercula C. B. Adams, Mangrove Cay, Andros; Nassau; Jamaica. 

 Lamellaxis pallidus C. B. Adams, N. P.; also Jamaica. 

 Melaniella gracillima Pfr., N. P.; Andros; Watlings Id.; Florida, Cuba, St. Thomas, 



etc. 



C(ecilioides acicula Miiller, Nassau, N. P.; Florida; Bermuda. 

 Zonitoides minusculus Binney, Nassau, N. P.; also Florida, Bermuda, Jamaica. 

 Succinea ochracina Gundlach, N. P.; Cuba. 



Succinea barbadensis Guilding, Andros; Nassau. Also Bermuda, the Antilles, etc. 

 Veronicella schivelyw Pilsbry, var. bahamensis Ball, Nassau, N. P.; Little Abaco. 



The type form at Bermuda. 

 Segmentina (Planorbula) dentata Gould, and 

 Segmentina dentata var. edentata C. B. Adams, Watlings Id.; Mangrove Cay, Andros; 



Cuba, St. Thomas, Porto Rico and Jamaica. 

 Planorbis redfleldi C. B. Adams, Andros; Jamaica. 



Physa acuta Braparnaud, Arthurs Town, Cat Id.; Mangrove Cay, Andros; the An- 

 tilles generally, western and southern Europe. 



