THE BAHAMA ISLANDS 41 



Cerion glans varium Bonnet, Nassau. 



Cerion glans cinereutn 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 Hmarginatum Maynard, Green Cay and Little Golding Cay, Andros. 



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



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



Window, Eleuthera. 

 Cerion {StropMops) eximium Maynard, Cat Id., Nassau, N. P. 

 Cerion' {StropMops) eximium fraternum Pilsbry, Cat Island. 

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

 Cerion {StropMops) oweni Dall, Indian Hole, Little Abaco; Sugarloaves, and also 



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

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

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

 Cerion {StropMops) bendalli Pilsbry and Vanatta, Abaco. 

 Cerion {StropMops) martensi Weinland, Crooked Island. 

 Cerion {StropMops) multistriatum Pilsbry and Vanatta, Crooked Island. 

 Cerion {StropMops) marmoratum Pfr., Fortune Id. 

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

 Cerion {Diacerion) hryanti Pfr., southern part of Inagua. 

 Cerion {Diacerion) ruMcundum 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?) 

 Strolilops hubiardi Brown, Watlings Id., also Florida, etc. 

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



Haiti, Bermuda, Florida. 

 Bifidaria 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 Bruguifire, N. P., Antilles generally. 

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

 Opeas suiula 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. 

 Cwcilioides acicula Mtiller, Nassau, N. P.; Florida; Bermuda. 

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

 Succinea ochracina Gundlach, N. P. ; Cuba. 



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

 Veronicella scMvelyw Pilsbry, var. bahamensis Dall, 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 redfieldi C. B. Adams, Andros; Jamaica. 



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

 tilles generally, western and southern Europe. 



