6 THE NAUTILUS. 
jetties were great numbers of Siphonaria naufragum Stearns (S. 
lineolata d’Orb.). One thing that seemed to impress me more 
than when I lived there, was the great abundance of oysters on 
all the rocks, even around the water battery of the fort and also 
on the piling. In speaking to an old friend regarding the 
matter, he said he thought that around the fort it was due to 
cleaning off the rocks a few years ago, thus presenting a clean 
surface for the young to cling to. This array of bristling 
oysters around the water battery of the fort deterred me from a 
hunt for Nerita peloronta and N, versicolor (5), three living speci- 
mens of which I found there together with Litorina angulifera, 
being the most northern record for the three species. 
Cerithidea scalariformis Say (6). The only place that I ever 
found this species at St. Augustine was in the more sandy por- 
tion of the marsh west of the city between King street and 
Orange street, not far from where the Y. M. C. A. building now 
stands. The filling-in of the marsh has probably locally ex- 
tirpated this species. Another related species Cerithium flori- 
danum Morch (7), C. atratum of my list, was also restricted 
to a small area, an old oyster bed at the west end of Marsh 
island. This is now a sand bar and the species may now be 
entirely absent in the harbor. At the latter place I also found 
my only living example of Murex fulvescens Sowb. (M. spini- 
costata Val.). 
At the mouth of Hospital creek was a large patch of the 
grass-like Gorgonia—Leptogorgia virgulata. On this lived the 
little Simnia uniplicata Sowb. 8 (Ovula uniplicata), as the Gor- 
gonia varied in color so did the shells of the Simnia, agreeing in 
color with the bunch of Gorgonia on which they were found— 
either white, light-yellow, orange or pink. On one occasion 
while hunting for Simnia a conspicuous object attracted my at- 
tention, its flesh-colored mantle with irregular blackish mark- 
ings was very striking, and as it contracted I found I hada 
Cyphoma gibbosa Linn. (Ovula gibbosa), common to the West 
Indies. For some time I wondered why the animal of this 
shell should be so very conspicuous; then the thought occurred 
to me that in more southern waters probably most of them live 
on the ‘‘sea-fans’’ (Rhipidogorgia flabellum) and with their 
