59 
tessier! St. Thomas; St. Johns; St. Croix; Portorico; 
Jamaica; Krebs! 
Antonii Phil. station: — ? —; habitat: Jamaica; 
Ad.! St. Thomas; Th. Bland! Antilles; Moérch! 
carinata dOrb. Moll. de Cuba 1. 209; station: —? 
— ; habitat: Havana; Sagra! Auber! Martinique; 
Candé! Rang! Antilles; Mérch! remark: dOrbigny 
observes that those at Martinique are smaller than those 
at Havana. It would be very interesting to study if a 
species has a centre where the individuals evelope them- 
selves to the greatest size and to the highest degree of 
perfection and from there toward the radius decrease in 
size and perfection. Several series of shells in our col- 
lection alove us to cherish this idea. 
columellaris @Orb. station: On rocks; Beau! ha- 
bitat: Pernambuco; d’Orb.! Martinique; Candé! Point 
i Pitre; Guadeloupe; Beau! Cat. pg. 12; Havana; K. 
Prescot! remark: Described in .Mollusques de Cuba‘ 
Palepe 2S 
Gundlachi Ph. station: — ? — ; habitat: Cuba; 
Gundlach! remark: Described in ,,Zeitschrift* 1848— 150. 
guttata Ph. (L. punctata Pf.) station: Found on poles 
in quiet water, close to the beach; habitat: Antilles; 
Moérch! Guadeloupe; Petit! Beau! Duchassain! St. Tho- 
mas; Bland! Jamaica; Ad.! St. Thomas; St. Johns; St. 
Martin; Porto-Plata and Carthagena (N. Gr.); Krebs! 
dilatata dOrb. station: — ? —; habitat: Havana; 
Sagra! Auber! K. Prescott! Florida; Alphenj! Porto- 
Plata; Krebs! Jamaica; Ad.! remark: Described in 
»Mollusques de Cuba“ t—207. 
flava Brod. (L. irrorata var. Petit) station: —? —; 
habitat: Brasils (?); Ad.!, Guadeloupe; Petit! 
