INDEX 355 
5 I a EN 
Venericardia, 264 Viasta, 256 Xylophaga, 275 
Venerupis, 270 Voluta, 165 Xylotrya, 275 
Veniella, 264 Volutharpa, 73 
Venus, 270 Volvaria, 168 F 
Veranya, 339 Volvatella, 169 Yoldia, 255 
Vermetus, 154 Volvula, 168 
Verticordia, 277 Vulsella, 260 Zeidora, 149 
Vertigo, 188 Zirphaea, 275 
Vesicomya, 253 Woodia, 264 Zittelia, 157 
Visceral commissure, 16 Zonites, 186 
Vitrina, 187 Xenophorus, 155 Zospeum, 188 
Viviparity, 21, 131 Xiphoteuthis, 337 Zygoneury, 142 
THE END 
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