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habitat: Antillae; Mérch! St. Thomas; St. Johns; An- 
guilla; Krebs ! : 
rustica Lam. station: — ? —; habitat: Luzon 
(one of the Philippines) Reeve! Antillae; Mérch! St. Tho- 
mas; St. Martin; Krebs! 
subdeltoidea Blainv. station: — ? —; habitat: 
Cuba; Martinique; d’Orb.! 
trapa Bolt. (P. deltoidea Lmk., M. nodus L., Meusch, 
Hippocastanum fasciatum Mart.) station: on rocks and 
stones at high-water mark; Krebs! habitat: Antillae; 
Morch! Guadeloupe; Beau! Carthagena in Nw.-Gr.; Ber- 
muda; Jamaica; C. B. Adams! St. Thomas; Krebs ! 
undata Lmk. station: — ? — ; habitat: Pernam- 
buco; Cuba; d’Orb.! Guadeloupe; Beau! 
vexillum Lmk. station: — ? —; habitat: Antil- 
les; d’Orb.! 
Recinula Lamarck. 
ferruginosa Reeve. station: —?—; habitat: An- 
tillae; Moreh! remark: we think it is synonyme with 
R. nodulosa Ad. 
nodulosa Ad. station: on stones in one to two feet 
water; Krebs! habitat: Guadeloupe; Beau! St. Tho- 
mas; St. Johns; St. Martha in New-Gr.; C. B. Adams! 
St. Thomas; St. Johns; St. Barth; St. Martin; Anguilla ; 
Carthagena in New-Gr.; Krebs! 
rosea Reeve. station: — ? — ; habitat: Island of 
Masbate; Reeve! St. Thomas; Krebs! 
turbinella Kien. station: on stones in one to two 
feet water; Krebs! habitat: Guadeloupe; Beau! Duchas- 
sain! Petit! Jamaica; C. B. Adams! St. Thomas; St. 
Barth; Anguilla; St. Martin; Krebs! 
