158 THE LIFE OF THE MOLLUSCA 



Velates, 96 



V elates conoideus, xxxii. 



Veliger stage, 6, 93 



Velum, 93 



Velutina, 63 



Veneridse (Venus Shells), 35, 



107 

 Venus mercenaria, 138, 142 

 Venus paphia, xix. 

 Venus Shells. See Veneridae. 

 Vermetus, 21, 68, 91, 98, 118 

 Vermetus lumbricalis, x. 

 Verticordia cardiiformis, xx. 

 Vertigo angustior, xiii. 

 Veronicella, 106 

 Visceral ganglia, 8 

 Visceral hump, 17 

 Visceral loop, 8 

 Vitrina angelica, 60 

 Vitrina pelhicida, xiii. 

 Vivaria for Oysters, 139 

 Vivipara, 48, 53, 65, 87, 88, 90 

 Vivipara contecta, viii. 

 Vivipara vivipara, ii., x. 

 Viviparidae, 58 

 Viviparous Mollusca, 88 

 Volsella, 55, 57, 122 



Valuta, 63 

 Voluta : radula, iii. 

 Voluta undulata, ii. 

 Vulsella, 63, 80 



Wampum, 142 



Water mains invaded by Mol- 

 lusca, 59 



Water Snails 68 



Water-pot Shell See Brechites. 



Whelk. See Buccinum. 



Window Shell. See Placuna. 



Worm-eating Slugs. See Testa- 

 cella. 



Xenophora, 122 



Xenophora conchyliophora, xxviii. 



Xenophoridas, 46 



Xesta Cumingii, 124 



Xylophaga dorsalis } xx. 



Xylotyra, bipinnata t xx. 



Yetus diadema, xi, 



Yoldia, 63 



Yoldia my alts, xvii. 



i Zebra Mussel. See Dreissensia. 



