696 
Pachychilus glaphyrus, var. 
bicarinatus........-+eeeeee 645 
—, var. glaphyroides .. 444 
—— ——,, var. glaphyroides .. 439, 
440 
—— —,, var. glaphyrus .... 444 
—_ , var. glaphyrus.. 439, 440 
—— ——.,, var. immanis...... 438 
—— ——,, var. immanis.. 439, 440, 
444 
— , var. opiparis ...... 445 
—— , var. opiparis ., 439, 440 
—— ——,, var. polygonatus .. 444 
—— ——., var. polygonatus .. 489, 
440 
—— ——,, var. potamarchus .. 446 
—— ——.,, var. potamarchus .. 489, 
440, 645 
—— ——.,, var. pyramidalis .. 445, 
645 
_—— , var. pyramidalis .. 439, 
440, 446, 669 
——_ ——,, var. rovirosat ...... 463 
—— ——-, var. scamnatus .... 444 
—— ——., var. scamnatus . 439, 440 
—— ——,, var. semilevis .... 445 
— , var. semilevis.. 439, 440 
—— YOUMANI. 6 ec cececes 445 
——— FTACtlts Lovee cnc cneues 461 
graphium .......... 461, 646 
graphium ...... 439, 448, 460 
—— , var. reductus ...... 461 
— , var. reductus .. 489, 448 
—— —., var. 
indiorum 
tindiorum 
—— ——, var. 
—— ——.,, var. 
, var. 
qansont .. 
lacustris 
lacustris 
——- ——.,, var. 
, var. 
indifferens 
, var, 
, Var. 
—— ——, var, 
, var. 
—— ——.,, var. 
, var. 
—— ——, var. 
transcendens .. 461 
transcendens .. 439, 
443 
see ce eens 451, 460 
explicatus .... 459 
Lente eee 439, 442, 
456, 457, 459, 460 
costato-plicatus. 456 
costato-plicatus. 439, 
442 
TAIL vs vcenee 442 
varicosus...... 456 
varicosus .. 439, 442 
eee c cece teeee 458 
tee ween tees 447 
Lecce eens 439, 441, 
446, 449, 450, 451 
amphibolus.... 447 
amphibolus. 441, 669 
conradti ...... 448 
conradtt...... 44], 
449, 669 
elimatus...... 448 
INDEX. 
Page | 
Pachychilus lacustris, vay. 
EUMATUS .. 6. oe vee eee 441, 449 
— , var. extenuatus .... 449 
—— ——, var. major ........ 448 
—- , var. major . 441, 449, G69 
— , var, pumilus ...... 448 
—— ——, var. pumilus .. 441, 449 
—— ——, var. terebralis...... 448 
—— ——, var. terebralis.. 441, 447 
—— levissimus...... 455, 456, 462 
—. , var. costatoplicatus.. 456 
— » VAL. VAIICOSUS ....- 456 
largillierti.......... 450, 645 
largilherti: .....6.. 439, 441, 
451, 452, 669, 674 
, var. nodulosus .... 451 
—— —, var. nodulosus .... 489, 
44], 669 
a , var. Salvini........ 451 
— , var. salvint ...... 439, 
441, 669 
— , var. stolli ........ 452 
—— ——,, vay, stolli ........ 439, 
441, 669 
UArvatUs vo. cic ccccneee 457 
liebmanni.............. 458 
liebmannt ........ 439, 441, 
454, 455, 670 
—— ——,, var. gassiesi ...... 454 
moe » Var. gassiést ...... 437, 
442, 452, 454 
— , var. gracilior ...... 45: 
— , var. gracilior ., 439, 442 
——— MEXUCANUS oe eceennes 458 
—— obeliscus .............. 446 
—— obeliscus........ 439, 440, 447 
—— ——.,, var. exarmatus .... 447 
—— ——,, var. evarmatus .... 440 
, var. pyrgiscus .... 447 
— , var. pyrgiscus .... 489, 
440, 448, 669 
—— Orstedi ......... 0.0008. 458 
Orstedi .... 489, 442, 459, 670 
—- , var. planensis...... 459 
—- , var. planensis.. 439, 443 
OPUPANUS occ eee ccenceees 445 
panucula .............. 458 
panucula ...... 439, 442, 459 
—_—- , var, mexicanus .... 458 
—— ——,, var. mexicanus .... 442 
ee , var, tumidus ...... 458 
— » var, tumidus ...... 439, 
442, 669 
pilsbryi.........0., 463, 646 
pulsbryt occ... 439, 445, 674 
—— pluristriatus ............ 449 
—— pluristriatus.... 439, 441, 669 
Pachychilus polygonatus 
, Var. rovirosat 
Ce 
— subnodosus 
Paludestrina candeana 
-—— coronata 
Ce 
, Var. cordovana ... 
, var. suturalis 
Thys 
(Ihysanophora) conspur- 
conspurcatella ...... 
ee eee eee eee 131 
—— hermanni 
impura ... 6... . eee eee 129 
sce e eee ee eees 127 
nner 446 
sce e tees seenees 449 
bee eee eeee 462 
.... 4838, 439, 443 
, var. strebelianus 
, var. strebelianus 
. 462 
. 439, 
443 
cence ce ee eee 461 
Lecce ee ee ee eeees 454 
turatit .....5 Seen 437, 439, 
442, 455, 669 
vulneratus... ccc cceeccee 646 
Lecce eee eee nes 456 
Lovee eee 433 
settee eeeees 434 
hyGlnd oo. cece, 432 
weet eeceeaees 432 
126, 621 
.. 124, 127, 130, 181, 154 
Leeeeceeees 136 
188, 135 
128, 621 
127, 129 
