46 THE NAUTILUS. 
Var. reever Jonas, 
This is not a form of F. princeps as suggested by Tryon. Al- 
though the type is comparatively small (135 mm. in length) 
the form is easily recognized and not uncommon on the Gulf 
coast of Florida. It was found by the writer at Marco. The 
prominent nodes become obsolete or wanting, especially on the 
body whorl; the shell is also thinner and does not reach the size 
of the typical form. While /. gigantea and F. princeps (from the 
west coast of Central America resemble each other superficially, 
there is a most remarkable difference in their opercula. The 
former has only the prominent concentric lines of growth on the 
exterior, while the latter has five deep longitudinal furrows. on 
the middle and inner edge and irregular diagonal ribs on the 
outer edge. 
The large bunches of egg-capsules of F. gigantea are conspicu- 
ous objects on the Florida beaches. These are poorly figured 
by Tryon (Manual, Vol. 2, pl. 7, figs. 78 and 79) as ‘‘ Capsules 
of an unknown Muricoid mollusk.’’? A bunch of capsules 
from Key West, Fla., nine inches in length and containing 
approximately 400 capsules was attached to a broad band 
which has no doubt contracted considerably in drying. 
Three of the capsules contained respectively 66, 70 and 76 
embryonic shells. If these should average 70 per capsule, the 
entire bunch would produce upwards of 30,000 shells, but the 
death rate is enormous and very few ever reach maturity. Each 
capsule is wedge-shaped, the angles slightly winged and the 
sides with five or six irregular ridges. It is about 40 mm. in 
length, attached to the band by a pedicel about 12 mm. long. 
The capsules of F. tulipa are in small clusters attached to 
shells and stones. It is also wedge-shaped and pedunculate, 
the sides are smooth, but the upper edge is ornamented by 
numerous undulations around its entire margin. In F. distans 
there is only a single indentation on the upper edge, forming a 
lobe that extends over the opening through which the young 
shellsescape. The latter is figured by Tryon (Manual II, pl. 7, 
fig. 77) as F. tulipa ? 
Fasciolaria tulipa (Linné). 
Colus achatinus Bolten, Mus. Bolt., 117, 1798. A variable 
