INDEX 



567 



versicolor, Amphidromus, 500. 

 verticillata, Phyllacanthus, 260. 



Plococidaris, 260. 



Prionocidaris, 260. 

 vespa, Diploneis, 124. 



Navicula, 124. 

 vesparella, Navicula, 124, 180. 

 vexator, Cochlostyla (Chrvsallis) rollei, 



488-490. 

 viaregis, Cerion, 454. 

 villosa, Cochlostyla (Chrvsallis) chrysa- 



lidiformis, 470, 473, 475. 

 virgata, Amphora, 24. 



Bulimus, 481. 



Cochlostyla, 456, 457. 



Cochlostvla (Prochilus), 454, 455, 

 457, 460, 462, 465. 



Helicostyla, 457. 



Helicostyla (Prochilus), 457. 



Prochilus, 456. 

 virgatus, Amphidromus, 456. 



Bulimus, 455, 456, 459. 



Bulimus (Amphidromus), 456. 



Bulinus, 455. 



Prochilus, 456. 

 virginea, Cochlostyla, 451, 452. 



Helicostyla, 451, 452. 



Helicostyla (Eudoxus), 452. 

 virginicum, Pleurosigma, 133. 

 virgo, Cochlostyla (Corasia) 380. 

 viridis, Rhopalocidaris hirsutispina, 243, 



273, 274 (fig.), 308, 310, 311. 

 vitrea.. Amphora ostrearia, 25. 

 Vivipara, 455. 

 vulpecula, Navicula, 124. 



wagneri, Bulimus, 501, 512. 



Bulimus aspersus, 512. 

 wagneri, Chrysallis, 512. 



Cochlostyla, 512. 



Cochlostyla (Chrysallis) ' aspersa. 

 501, 503, 512. 



Cochlostyla mindoroensis, 501. 

 wallichianus, Campylodiscus, 55. 

 wallichii, Bacteriastrum, 57. 



Chaetoceros, 57. 

 weissflogii, Amphora, 28. 



Brebissonia, 119. 



Navicula, 8, 125. 180. 



Nitzschia, 7, 128, 180. 



Rhoicosigma, 143. 



Trigonium, 162. 

 Willemoesia, 175. 



elongata, 175. 



humilis, 175. 

 willemoesii, Onuphis (Nothria), 319. 

 williamsonii, Glyphodesmis, 77. 

 wittii, Trinacria, 172. 

 Wood, W. W., 374. 

 Worcester, Dean C, 373, 375, 376. 

 Xanthiopyxis, 145. 

 yarrensis, Navicula, 118, 125. 

 zebra, Epithemia, 16, 77. 

 zebuana, Nitzschia, 129, 180. 



Nitzschia plana, 129. 

 zebuanus, Campylodiscus, 49. 

 zonulatum, Trigonium, 170, 171. 

 zostereti, Navicula, 125. 

 Zygoceros radiatus, 161. 

 Zygophylax convallaria, 195, 199, 211. 



curvitheca, 196, 199, 212, 241. 



rufa, 199, 210. 



O 



116415—39- 



