INDEX. 
480 
Tritonium morgani, 207, 2 58, 267,293, 295, 298 
obliteration, 264 
tarbellianum, 207, 293 
verruculosum, 207, 298 
Trochidm, 162 
Trochita , 178 
araucaria , 18 1 
cly peolum, 180 
colchaguensis, 183 
corrugata , 179, 263, 288 
costellata, 178 
dilatata , 183 
filosa, 179 
maculata, 183 
magellanica , 180, 262, 288 
marnillaris , 182 
rnerriami, 178 
parvula, 180 
radians , 179 
.s-/ 1 ., 261 
Trochus 
biangulatus, 169 
collaris , 170, 260 
ditropis, 169 
fricki , 164, 165 
Icevis, 170 
macsporrani , 168 
magus , 171 
philippii, 164 
philipii, 164 
stoliczkai, 163 
veneficus, 170 
Trophon, 275, 323 
geversianus, 216, 217, 218, 289 
var. calva, 218 
var. varians, 218 
inornatus, 218, 309 
laciniatus, 216, 2/7, 259, 289, 307 
var. gradata, 218 
var. inornatus, 218, 307, 308, 309,460 
var. santacruzensis , 215, 262 
laciniatus , 288 
leucostomoides, 264 
leucostomoides, 2 62 
patagonicus, 2/5, 258, 260, 267, 274, 
276, 278, 279, 282, 288, 289, 307 
Trophon pyriformis , 220, 262 
varians, 218, 262, 307, 308, 309 
var. gradata, 218 
Tryon, G. W., 178, 182, 183, 185, 232, 233, 
234, 324, 460 
Tubicolae, 63 
Tubulostium, 7 
callosum, 30 
pupoides, 4, 8, jo 
Turbonilla, 174 
cuevensis, 774, 258, 262, 273 
ilieringi, 174, 263 
Turnus, 10, 28 
dubius, 4, 6, 27 
plenus, 28 
Turritella, 192, 323 
affinis, 193 
affinis, 193, 195 
aldingae, 195, 301 
ambulacrum, 192, 196, 197, 249, 258, 
260, 262, 267, 268, 271, 272, 273, 
275, 276, 277, 278, 279, 281, 283, 
293, 295, 29S, 299, 301, 305 
apicalis, 195, 293 
argentina, 193, 194, 262, 268 
bicarinata, 194 
breantiana, 195, 258, 261, 267, 272, 273, 
282, 293, 295, 298 
var. indecussata , 195 
chipolana, 197, 293 
cingulata, 194 
cingulatiformis, 194, 195, 198, 307, 308 
couteaudi, 195, 261 
darwini, 196, 197 
elachista, 261, 264a 
exigua, 192, 257, 304, 305, 306 
granulosa, 192, 304 
iheringi, 195 
innotabilis, 198, 259, 307, 308 
parvula, 192 
patagonica, 194, 196, 198, 258, 260, 272, 
274, 276, 281, 293, 295, 298, 305, 
307 
perattenuata, 196, 293 
soiverbyana, 193 
steinrnanni, 194, 262 
