Plate 23
ATLANTIC COAST UNIVALVES
a. QUEEN CONCH, Strojnbus gigas L., 10 inches (also young) (Florida Keys and West Indies), p. 174.
b. MILK CONCH, Stroinbiis costatiis Gmelin, 6 inches (Southern Florida and West Indies), p. 174.
c. AMERICAN PELICAN'S FOOT. Aporr- hais occideriialis Beck, 2 inches (also young) (off New England), p. 173.
d. LONGLEY'S CARRIER-SHELL, Xeno- phora longleyi Bartsch, 7 inches (Gulf of Mexico, south), p. 173.
e. CARIBBEAN CARRIER-SHELL, Xeyw- phora caribaea Petit, 4 inches (off Florida and Cuba), p. 173.
f. GIANT TUN, Tojma galea L., 6 inches (North Carolina to Texas and West Indies; Pacific), p. 199.
g. CROSSE'S TUN, Eiidoliiim crosseamim Montero., 3 inches (off New Jersey to West Indies), p. 199.
h. WEST INDIAN CROWN CONCH. Melongeria melongejia L., 4 inches (Florida Keys, south), p. 235.
i. KNOBBED WHELK, Biisycon carica Gmelin, 8 inches (Cape Cod, Massa- chusetts to Northeastern Florida), p. 235.
j. NEW ENGLAND NASSA, Nassarius trivit- tatus Say, % inch (Nova Scotia to South Carolina), p. 239.
k. PERVERSE WHELK, Biisycon perversiim L., form eliceans Mont., 6 inches North- eastern Florida), p. 236.
1. CARIBBEAN VASE, Vasum miiricatum Born, 4 inches (South Florida and West Indies), p. 245.
m. PYGMY COLUS, Coins pygmaea Gould, 1 inch (Quebec to off North Carolina), p. 229.
n. CHANNELED WHELK, Biisycon canalicii- latum L., 6 inches (Cape Cod to North- eastern Florida), p. 236.
o. LIGHTNING WHELK, Busycon contra- rinm Conrad, 8 inches (South Carolina to Texas), p. 236.
p. EASTERN MUD NASSA, Nassarius ob- soletus Say, % inch (Quebec to North- eastern Florida), p. 240.
q. COMMON EASTERN NASSA, Nassarius vibex Say, J/^ inch (North Carolina to Texas, south), p. 237.
r. VARIABLE NASSA, Nassarius ambiguus Pult., Yi inch (North Carolina to West Indies), p. 239.
s. BROWN-CORDED NEPl UNE, Neptunca clecemcostata Say, 3 inches (Nova Scotia to Massachusetts), p. 229.
t. HAIRY COLUS, Coins pubescens Verrill, 2 inches (Quebec to off North Caro- lina), p. 229.
u. FAT COLUS, Coins ventricosus Gray, 2V2 inches (Nova Scotia to New York), not in text.
v. EMPEROR HELMET, Cassis madagascariensis Lam., 9 inches (Southeastern Florida and West Indies), p. 193.
w. LONGHORNED SMOKE SHELL. Typhis longicornis Dall, ]/! inch (Florida and West Indies), not in text.
x. STIMPSON'S COLUS, Coins siimpsoni Morch, 4 inches (Labrador to off North Carolina), p. 227.
y. FLORIDA HORSE CONCH. Pleiiroploca gigantea Kiener, 20 inches (North Carolina to Florida), p. 242.
