Olividae 175 



uminous posterior portion which is reflected well over the sides 

 of the shell. 



The shells are smooth and highly polished; usually subcylindrical 

 and short-spired with a greatly lengthened body whorl and long, 

 narrow aperture; no operculum. 



Genus OLIVA Bruguiere, 1789 

 01iva3i9 sayana Ravenel PI. 36, fig. 247 



Alt., 50-60 mm. Shell subcylindrical, polished and shining; 

 ground color cream or grayish, overlaid with angular pattern of 

 brown with pale-tmted central band, darker markings above and 

 below; spire short, acute, nucleus minute, glassy, opaque; five or 

 six whorls, "enroule"; body whorl lengthened, about ftve-tenths 

 of altitude; one plicate revolving fold near base; sutures deeply 

 channeled; aperture long, obliquely notched at base; outer lip 

 thickness of shell, not reflected; columella plicate below, slightly 

 sulcate above; no operculum. 



Oliva sayana citrina^-o Johnson 



A golden-yellow or pale-yellow form of 0. sayana peculiar to 

 the Gulf Coast of Florida. Pure albino specimens occur, but are rare, 



Oliva lives in sandy stations. The animals are gregarious and 

 move in large groups from one location to another. They burrow 

 about an inch beneath the surface of the sand, with only the ex- 

 treme tip of the long slender proboscis exposed and the broken 

 trail in the sand is like that of a mole in soft earth. ^-^ Forward 

 movement is by alternate advance and rest periods. 



A number of specimens of both types of Oliva have been found 

 which have a strong revolving cord at or near the center of the 

 body whorl. The cord is continuous from columella to edge of 

 outer lip. 



^^^ Lat., oliva, olive. 



320 Lat., citrinus, yellow. 



321 Mr. Ernest H. Noyes, at Naples, Florida, has taken living Oliva in a 

 Lyman trap baited with sand fleas. F. Lyman, Lantana, Florida writes — "For 

 many years we have had frequent reports from Palm Beach pier that fishermen 

 catch Oliva on hooks while fishing for pompano. Sand fleas are used one hun- 

 dred per cent for pompano bait." 



