554 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Mastogloia imitatrix, 89, 179. 



javanica, 90. 



jelineckiana, 90. 



kerguelensis, 91. 



lemniscata, 88, 90, 91. 



leudugeri, 88, 90. 



lineata, 90. 



mauritiana, 91. 



obscura, 91. 



oculiformis, 90. 



ovata, 90, 179. 



ovum-paschale, 90. 



pulchella, 91. 



quinquecostata, 91, 179. 



rhombus, 8, 91. 



sansibarica, 91, 92. 



seriata, 92. 



sinuata, 91, 92. 



splendida, 92. 



squamosa, 92. 

 Mastoneis, 95. 



mateoi, Cochlostyla (Cochlodrvas), 422, 

 423, 429. 



Cochlostyla (Cochlodryas) mateoi, 

 422, 426. 

 mateoi subsp., Cochlostyla (Cochlo- 

 dryas), 426. 

 mauritiana, Mastogloia, 91. 

 maxima, Navicula, 107, 108. 



Navicula liber, 109. 



Tropidoneis, 174. 

 maximus, Hyalodiscus, 85. 

 maxwellsmithi, Helicostyla virgata, 457. 

 mayabigana, Obba listtri, 345, 348, 350. 

 mccoyi, Aglaopheuia, 232. 

 mcgintyi, Helicostyla, 486. 

 Mearns, Edgar A., 376. 

 medioensis, Obba planulata, 361, 362, 



368. 

 mediterranea, Navicula, 101. 

 mediterraneana, Melosira, 94. 

 mediterraneanum, Skeletonema, 145. 

 medusa, Chaetoceros (Bacteriastrum), 



57, 58, 177. 

 medusiformis, Stegopoma, 205, 206. 

 melanocheila, Callicochlias, 382. 



Cochlostyla, 382. 



Cochlostyla (Calocochlea), 381, 385. 



Helix, 382. 



Helix (Callicochlias), 382. 

 melanochela, Helix (Callicochlias), 382. 

 melanochila, Cochlostyla, 382. 



Cochlostyla (Callicochlias - ), 382. 



Helicostyla, 382, 388. 



Helicostyla (Calocochlea), 382. 

 melanogaster, Chrysallis, 510. 



Cochlostyla, 510. 



Cochlostyla aspersa, 502, 503. 



Cochlostyla (Chrysallis) aspersa, 

 517. 



Cochlostyla mindoroensis, 510. 

 Melosira, 58, 76, 92, 93, 145. 



biseriata, 93. 



coronaria, 92. 



dura, 92, 179. 



gowenii, 93, 179. 



hispida, 92. 



incompta, 93, 179. 



Melosira madagascarensis, 93. 



mediterraneana, 94. 



setosa, 92. 



undulata, 93. 

 membranacea, Amphiprora, 173. 



Biddulphia, 42. 



Tropidoneis, 174. 

 membranaceum, Trigonium, 42, 170. 

 membraneacea, Tropidoneis, 173. 

 Menage Expedition, 375. 

 menagei, Cochlostyla (Hypselostyla) 

 cincinniformis, 436, 439. 



Cochlostyla (Hypselostylus) cin- 

 cinniformis, 439. 

 mendica, Navicula, 109, 110, 179. 

 mesai, Obba, 343, 354, 356-358. 



Obba mesai, 357, 358, 360. 

 metaformis, Cochlostyla, 378, 409. 



Cochlostyla (Cochlostyla), 407. 



Cochlostyla (Dryocochlias), 409. 

 metularia, Cidaris, 260. 



Eucidaris, 260. 

 mexicana, Caloneis, 110. 



Navicula, 110. 



Surirella, 157. 

 micans, Coscinodiscus, 68, 69. 

 Michael, E. L., 1. 



micropora, Trigonium inelegans, 169. 

 microscopica, Plumularia, 227. 

 microtuberculata, Cidaris (Stereocidar- 

 is), 302. 



Stereocidaris, 300, 302, 309. 

 mikado, Discocidaris, 277. 



Goniocidaris (Discocidaris), 262, 

 264. 

 milesiana, Amphora, 25. 

 mimula, Navicula, 109, 110, 179. 

 Mindoro Province, land shells ofj^the 

 genus Obba from, 343. 



tree snails of the genus Cochlostyla 

 from, 373. 

 mindoroensis, Bulimus, 501, 505, 508, 

 510, 512. 



Bulinus, 501, 505, 508, 510, 512. 



Chrysallis, 505, 508, 510, 512. 



Cochlostvla, 475, 488, 500, 501, 

 505, 508, 510. 512. 



Cochlostyla (Chrysallis) aspersa, 

 455, 501, 503, 505, 508. 



Helicostyla, 505, 508, 510, 512. 



Helicostyla (Chrysallis), 503, 507, 

 510. 



Helix, 491. 



var. k, Bulinus, 483. 

 minima, Isthmia, 85. 

 minor, Endictya, 76. 



Obba listen, 345, 348. 

 minor, Obbina listeri, 348. 

 minus, Dimeregramma, 74. 

 minuta, Cochlostyla (Chrysallis) cani- 

 ceps, 520, 527. 



Sertularia, 213. 

 mirabile, Skeletonema, 145. 

 mirabilis, Calvinia, 230. 



Cochlostyla, 378. 



Cochlostyla (Helicostyla), 400. 



Navicula, 110. 



Sertularella, 199, 216, 241. 



