SIMPSON — CONTRIBUTIONS TO THE MOLLUSCA OF FLORIDA. 53 



same from Utilla, Honduras. I have no doubt that it is a form of C. 

 mercdtoria. 



Columbella rustica L. Magill's Bay, large and fine; mouth of Ca- 

 loosahatchie River. 



Columbella nitida Lam. Tortugas reefs. Abundant under rocks at 

 low tide. 



Columbella cribraria Lam. Tortugas. 



Columbella lunata Say. Egmont Key; Red-fish Point; Manatee River. 



Columbella pulchella Keiner. Garden Key; Tortugas. 



Columbella acuta Stearns. E^gmont Key. 



Columbella avara Say, var. simplicata Stearns. Manatee River, on 

 floating dry-docks; dredged in Tampa Bay. 



Columbella obesa C. B. Ad. Red-fish Point, dead shells. 



Columbella ostreicola E. A. Smith. Tampa Bay; Cedar Keys, Mr. 

 J. B. Upson. 



Columbella stearnsi Tryon. Tampa Bay. 



Columbella hotessieri D'Orb. Tampa Bay. Worn shells were dredged, 

 which are probably this species. 



Engina turbinella Kiener. Tortugas reefs, under stones; Key West. 



Cancellaria reticulata Dilhv. West coast; more abundant at Sanni- 

 bel Island and southward. 



Cancellaria stimpsoni Calkins. A single shell was picked up in good 

 condition on Cape Sable. 



Terebra protexta Con. . West coast, rare ; dredged in Sarasota and 

 Tampa Bays. 



Terebra dislocatus Say. Abundant on sand flats at low tide. 



Strombus pugilis L. Common everywhere on the west coast. A 

 color variety has the interior of the mouth colored violet and blue. 



Strombus pugilis, var. alatus Gm. Not a distinct variety at all. I 

 have a suite of shells, varying from perfectly smooth forms to those 

 with sharp spines on the shoulder, and from a uniform chestnut color 

 throughout all the different patterns of bands and zigzag painting to 

 pale yellow. Some of the smooth forms are a uniform chestnut color. 

 I have a tuberculate variety with a brilliant light orange aperture. All 

 these forms are found from high tide to several fathoms' depth. 



Strombus bituberculatus Lam. Florida Keys; east coast. 



Strombus gigas L. Florida Keys. 



Strombus costatus Gm. Florida Keys; rare. I have a weathered 

 shell which I found on Passage Key, at the mouth of Tampa Bay, and 

 Mr. Charles More has one, in good condition, which he found on 

 Egmont Key, while residing there as light keeper. I have a young 

 shell which is probably this, which Mr. P. W. Reasoner found at Little 

 Sarasota Pass, that is of a bright crimson color. I have seen shells of 

 this species that were collected near St. Augustine. 



