BALL: MOLLUSCA AND BRACHIOPODA. 



487 



Turcicula imperialis, 349. 



macdonaldi, 349. 



miranda, 349. 



'Nvashingtoniana, 349. 

 Turricula, 245. 

 Turris, 255, 256, 257, 261, 262, 263, 264. 



armilda, 262. 



baby Ion ica, 255. 



circinata, 257. 



dolenta, 2G2. 



dotetla, 263. 



fusinella, 261, 262, 263, 



notilla, 263. 



resuui, 264. 

 Turritella, 255, 327. 



mnriann, 327. 

 Tj'phis martyria, 314. 



Uber, 333. 



Utriculus domitus, 242. 



Velainia, 334. 



Venericardia velutina, 412. 



Vertagus, 245. 



Vesica, 244. 



Vesicomya, 415, 416, 417, 418, 419. 



angulata, 419. 



dunacia, 417. 



gigas, 418. 



lepta, 416, 418. 



ovalis, 417. 



stearnsii, 417. 



venusta, 417. 

 Voluta, 297. 



alta, 299. 



ancilla, 297. 



gracilis, 298. 



reticulata, 294. 



Voluta solidula, 2.36. 



tornatilis, 235. 



undulata, 297. 



vespertilio, 297. 

 Volutilitlies philippiana, 298. 

 Volutopsius amabilis, .305. 



Waldheimia wyvillei, 444. 



Xylophaga, 424, 425. 



dorsalis, 424. 



mexicnna, 425. 

 Xylopbagus, 424. 

 Xylotomea, 424. 

 Xylotrya, 425. 



Yoldia, 379, 380, 381, 382. 



angularis, 379. 



arctica, 379. 



chihnica, 380, 381. 



chilensis, 381. 



dicella, 382. 



granuUt, 382. 



hyperborea, 379. 



indolens, 381. 



infreqttens, 381. 



lanceolata, 378. 



leonihln, 382. 



limatula, 379. 



lucida, 380. 



mantana, 381. 



payiamensis, 380. 



scapania, 380. 



solenoides, 380. 



thraciaeformis, 379, 381. 



vincula, 379. 

 Yoldiella, 380, 381, 382. 



