
Aemaea, Esch. 
.depicta, Dall 
..insessa, Hds 
_.mesoleuc?, Mle 
. paleacea 
.. pelta, Esch 
..var, elevata, Orcutt 
. bestudinalis 
Acus, Humphrey. 
.50,,aureola, Gray - 
25, caerulescens, Lam 
.25,.erenulata, L 
.20; denudata 
05, .dislocatus, Say 
.20..maculata, L 
.20..strigillata, Gray 
.2,.subulata, Lam 
_Adeorbis, Wood. 
.25..subcarinatus, Mont 
pts H.& A. Adams 
20... falcata, Gid 
 ,16..8tylina, Cpr -. 
| Alexia, Leach, 
© LOK -personata, Midd 
.05..setifer, Cooper 
A Alvania. © 
20. .aequisculpta, Cpr 
_ Amatlthea, Schum. 
— ,60..conica, Schum 
Amiantis, Cpr. 
1,00. .callosa, Conr 
Amnicola, Gld. & Hild. 
.U8, .cincinnatiensis, Anth 
cubeniana, D’Orb 
 decisa, vag 
- grana, Say 
.. ntegra, Say 
. lapidaria, Say 
. llimosa, Say 
‘18, -longinqua, Gld 
.05. .lustrica, Say 
-10...pallida, Hid 
-20,.panamensis, Tryon 
-05..parva, Lea 
Ud. -porata, Say 
.25..sp. indet, Utah 
Amphibola, Schum. 
20, fragilis, L. 
12. .nux-ave'lana, Chem 
Amphissa, H. & A. Ad. 
«LW, CO. rugata, Rve 
.»0..versicolor, Vall 
Ampullaria, Lam. 
.6U. -chigintensis, D’ Urb 
1.00. .cumingii, Sby 
2.00. .olivacea, 'Spix 
0. <sealaris,D’ Orb 
Amyel a, H. & A. Ad. 
-Ud..carinata, Hds 
10..var. hin: dsi', Rve 
15. .chrysalloidea, Cp 
0, .gausapata, G: ‘d 
Anachis, H. & A. Ad. 
0..coronata, by 
110. flue uata, Sby 
--guatamalensis Sby 
‘10. -Penicillata, Cpr 
_ -20..pygmaea, Sby 
' eo -Tugosa, Sby 
--rugulosa, Sbhv 
..Subturrita, Cpr 
20. -Varia, Sby 
aria, Lam. 
54), ,accuminsta, 
: 1 7 Lam 
438 






-40..cinnamon a, Lam 
+15. .fulva, Swains 
75. ante, Swains 
*UU..montronzieri, Sb 
+15, rubiginosa, Bivins 
--tankervillii, Sby 
‘Osa, Mensch 
20, vesiou, Gmel 

The West American Scientist. 
Anapa, Gray. 
.5U. .triquetra. Hawley 
Anculosa, Say. 
.10..ampla, Anthony 
.05..plicata, Conr 
.10..rubiginosa, Lea 
Ancylus, Geoffroy. 
.05.. fluviatilis, L.m 
.20.. lacustris 
.15..rivularis 
Angitrema, Hald. 
.90,..angulata, Wetherby 
Angulus, Schum. 
.10..gouldii 
.10..mo lestus 
-10..obtusus, Cpr 
.15..variegatus 
Anodonta, Cuvier. 
2.00..bridgesii, Lea 
.00..ca iforniensis, Lea 
1.00. .corpulenta, Cp 
..cygnaea, L 
..var inflata 
.. var, limpida 
. edentula, Say 
. ferrusaciana, Lea 
. fluviatilis, D.liw 
. .2randis 
. Jewettii, Lea 
. oregonensis, Lea 
.-wahlametensis, Lea 
Anomia, IL. 
.20..aculeata, Gmel 
.10..ephippium, L 
.25..glabra Verrill 
.25..lampe, Gray 
Aporrhais, Dillw. 
.25..occidentalis, Beck 
.25..pes-pelecani, L 
Asaphis. 
.25..detiorata, L 
Arca, L. 
. americana 
. incongrua 
. -mutabiiis 
.. noae, L 
. _ponderosa Say 
..solida, B&S 
ac tetrazona 
.oU..virescens, Rve 
Assiminia, Leach. 
.1U..californica, Tryon 
Astarte, + by. 
.15..castanea, Sby 
.25..conradi, Shuttl 
.25..equimalti, Baird 
.15..suleata, Da Costa 
Astyris, H. & A, Ad. 
.10..aurantiaca, Dall 
.1U..chrysalloidea, Cpr 
.1U..tuberosa, Cpr 
.10..varie:ata. Stearns 
Atys, Montfort, 
.20.. cylindrica 
Auricla, Lamarck. 
-o,. parva, Swainson 
.050..aurismidae, L 
.25..elongata, Parr 
O35. fasciata, Desh 
.25,..solida, Swainson 
Avicula, Lam. 
20. -brevicauda, Desh 
.2G. .hirundo, i, 
-20. .wargaritifera, Brug 
.25..tarentiva 
Axinaea, Poli. 
.50..maculata, Brod 
Bankivia, Beck. 
-19. varians, Beck 
Barleeia, Clark, 
-10..haliotipbila, Cyr 
Bithynia, Gray 
-15..leachii, Shep 
05, ,tentaculata, L 


| 
| 
| 
| 
Bela, Gray. 
.. brachystomoides 
Bittium 
. filosum, Gld 
. .lawleyanum, Crosse 
. nigrum, Tottem 
..quadrifilatum, Cpr 
. .reticulatum, DC 
..scabrum, Olu 
Blauneria, Shuttl 
1.00..pellucida, Pfr 
Bryophila, Cpr 
.15..setosa, Cpr 
Buccinum, L 
.25..glacialis 
.20..undatum, Lam 
.25..undulatum, Moll 
Bulimnea, Hald 
.25..megasoma 
Bulinus, Adams 
.LO..hypnorum, Ih 
Bulla 
..Adamsi, Mke 
. alnpulla, L 
. occidenta'is, Adams 
.20..solitaria, Say 
Busycon, Bolten 
.00..perversum, L 
Caecum, Flem 
.10..californicum Dall 
.25..crebricinctum, Cpr 
Calliostoma, Sun 
..annulatum, Mart 
..canaliculatum Mart 
. costatum, Mart 
. gemmulatum 
. exiguus, Pult 
..Striatus, L 
.50. . tricolor 
Callista, Poli 
.25..gigantea, Chem 
.25..maculata, L 
.00..lupisearia. L 
Callopoma, Gray 
.50. .fluctuosum, Gray 
.90..fokkesii, Jones 
‘25. _tessellatum, Reeve 
Calyptraea, Lam 
.25..conica, Brod 
10. .chinensis, L 
.00..dilleyani, Gast 
.20. “equestris 
.20..striata 7, 
Cancellaria. Lam 
.oo..reticulata, J 
.30. .similaris, Shy 
Canthurus, Bolten 
.tineta, Conr 
ar ‘ardita, Brug 
.25..affinis, Sby 
2d. -floridana, Conr 
.15..suleata, Lam 
Cardium, L. 
.50..aculeatum, L 
...blandum, Gld 
...corbis, Mart 
...consors, Brod 
..islandicum 
...lsocardia, L 
.-magnum, Born 
..muricatum 
. mortoni, Conr 
. -horvegicum, Speng 
_.paucicostatum, Sby 
-.Sserratum, LL 
Casmaria, H. & A. Ad. 
.50...vibex, L 
Cassid ula, Ferrussac. 
.oO..crassiuscula 
Cassis, Lamarck. 
1.00. .abbreviata, L 
.75...eburneus, Brug’ 
.50...undatum, Mart 
.50.. .testiculus, L 
1,C0...tessellata 




Ceratisolen, Forbes. 
1.00...legumen, (. 
Cerithidea, Swains. 
.20..ambigua, C B Ad 
..californica, Nutt 
...decollata, Lam 
..icstoma, Pfr 
...mazatlanica, Cpr 
..montaguii, D’Urb 
. obtusa, Lam 
..ornata, Ads 
..pulchra, C B Ad 
.. scalarifornis, Say 
..tenuis, Pfr 
...varicosa, Sby 
5..mamillata, Risso. 
Cerithiopsis,. 'F. & H.. 
.15..tuberculata, Mart 
:15...tubercularis, Mart 
Cerithium, Brug. 
.20...carbonarium 
..echinatum, Lam 
..ferrugineum, Say 
. fasciatus, Wood 
..fusciatum, Risso 
. literatum, Born 
...maculosum, Kien 
..mam'llatum, Risso 
..morus, Lam 
..muscarum, Say 
-nigiescens, Mke 
..nodulosum, Brug 
... obeliseus, Brug 
...polygonum, Sby 
...reticu'atum, DaCosta 
.. rupestre, Brug 
..Scabrum 
.. Stercus-muscarum 
.. Var 
... septemstriatum, Say 
..uncinatum, Gmel 
..versicolor, C B Ad 
... violaceum 
... vuleatum, Brug 
Chama, L. 
..acnella, L 
..arcinella, L 
..exogyra, Conr 
. macrophylla, Chemn 
. .Spinosa 
...Sp indet Gu'f Cal 
Chemnitzia, D’Orb. 
.25...castamea, Cpr 
.25...stylina, Cpr 
.25..tenuicula, Gld 
.25..torauata 
Chilina, Gray 
1.00...fluctuosa, Gray 
1.00...finviatilis, Gray 
Chione, Megerle 
.25...californiensis, Brod 
.20..cancellata, L 
..dombei, Lam 
. .granulata, Gmel 
. grata, Sby 
--paphia, Lb. 
Chiton, L 
.. acuta, Cpr 
.-apiculatus, Say 
..c nereus, L 
. .decoratus 
..-circulus 
..gemmer, Cpr 
...lamuginosa, Cpr 
. .tunicata, Sby 
.. hindsii, Gray 
..mertensii 
. .wassnessenskii, Midd 
.. Stelleri, Midd 
.. Stokesit 
.-lineata, Wood 
--rugatus 
.. lignosa, Gld 
..-merekii, Midd 
1,00...acrior 
