DALL: MOLLUSCA AND BRACHIOPODA. 
Turcicula imperialis, 349. 
macdonaldi, 349. 
miranda, 349. 
washingtoniana, 349. 
Turricula, 245. 
Turris, 255, 256, 257, 261, 262, 263, 264. 
armilda, 262. 
babylonica, 255. 
circinata, 257. 
dolenta, 262. 
dotella, 263. 
Susinella, 261, 262, 263. 
notilla, 263, 
resina, 264. 
Turritella, 255, 327. 
mariana, 327. 
Typhis martyria, 314. 
User, 333. 
Utriculus domitus, 242. 
Verain, 334. 
€nericardia velutina, 412. 
ertagus, 245. 
esica, 244. 
Vesicomya, 415, 416, 417, 418, 419. 
angulata, 419, 
donacia, 417. 
gigas, 418. 
lepta, 416, 418. 
ovalis, 417. 
Stearnsii, 417. 
venus . 
Voluta, 207. E 
alta, 299, 
ancilla, 297, 
gracilis, 298. 
reticulata, 294, 
Voluta solidula, 236. 
tornatilis, 235. 
undulata, 297. 
vespertilio, 297. 
Volutilithes philippiana, 298. 
Volutopsius amabilis, 305. 
WALDHEIMIA WYVILLEI, 444. 
XYLoPHAGA, 424, 425. 
dorsalis, 424. 
mexicana, 425. 
Xylophagus, 424. 
Xylotomea, 424. 
Xylotrya, 425. 
YouprA, 379, 380, 381, 382. 
angularis, 379. 
arctica, 379. 
chilenica, 380, 381. 
chilensis, 381. 
dicella, 382. 
granula, 382. 
hyperborea, 379. 
indolens, 381. 
infrequens, 381. 
lanceolata, 378. 
leonilda, 382. 
limatula, 379. 
lucida, 380. 
mantana, 381. 
panamensis, 380. 
scapania, 380. 
solenoides, 380. 
thraciaeformis, 379, 381. 
vincula, 379. 
Yoldiella, 380, 381, 382. 
487 
