NORTH AMERICAN SHELLS. 19 
FAMILY PALUDINIDA. GENUS PHYSA. (Continued.) 
GENUS MELANTHO. 1577 P. heterostropha, var. Warreniana, 
1525 M. ponderosa, Say. Tennessee........... 10 : Lea, Oregon... 5 
1526 M. integra, Say. Minnesota............... 10 | 1578 , var, eae cee Idaho 5 
| 1579 E. eae, rbigneyi, Tryon.Cal 5 
FAMILY AMPULARIDA. 1580 P, “var. distinguenda, Tryon. 
GENUS AMPULARIA. Califonmianeee ete 5 
Subgenus Pomus. 1581 Be 38 var. ancillaria, Say. Idaho 5 
1527 P. caliginosus, Rve. Florida......,....... a5 | 1592) F. Vee unc otala, Tyo: 
; Califorimiassesneatie. 5 
FAMILY LIMNASIDA. 1583 P. “ var. niagarensis, Lea. Cal.. 5 
GENUS LIMNASA. ae P. integra, Hald. California and La... 5 
: ; : Spits teiey 12 Svat Idaho..... 5 
1528 L. stagnalis, Linn, Minnesota........... sie | ate < : eer 3 : 9 
1529 ly. ‘* var. appressa, Say. Utah.... 15 ee a rede rates California eer 5) 
1530. L. ““ var. occidentalis, Hemphill. 25 |°-Y°/ ~° Bee eat Cik Wal ud a 7) ees ue) 
15e1 columella: Say .\GeOrgias,...5s+sse.-. 15 GENUS BULINIS, 
GENUS RADIX. (1588 B, hypnorum, Linn.  Utah.............. 5 
1532 R. ampla, Mighels, Idaho................ 15| 1099 B- "var. Tryonii Currier, Utah. 10 
ESOQtuN Nhe var. Washington 15 SUBGENUS PHYSELLA. 
UG AAU ROY hes var. California 15 1590 P. globosa Py tald) dalto. testes 10 
PESO DOE. 1591 P. columbiana, Hemphill, Oregon... 10 
1535 L. catascopium, Say. Oregon............ 5 SUBFAMILY POMPHOLIGINA3. 
1536 L. ovate California 5 GENUS POMPHOLYX. 
1537 L. «c var. Washington Giieos Pu eines Piro) : 
1538 L. “var. bulimoides ? Lea. Utah.. 5 ee P. ere vee Sey Via ee ee 
1539 L. hy i aig 2 oe the next... SHMSQA VE. var. costata, Hemphill, Or.. 20 
ea a Seas ete ay. Was shina eee 2 n=O JeE) SC var. solida, Dall. Nevada.... 20 
mous.) ety pical piiiialn, <0... 5 SUBFAMILY PLANORBINAS, 
1543 humilis, Say. ae Bae ty wear 5 GENUS PLANORBIS. 
1544 1, proxima, Lea. California.............. 5 horl i ; 
TSA5 cL, desidiosa, Say Wtalay .<.i.5..c...:00c00c0 5 wv See ee Cay C Ne Bae ae 
1546 L, sae Washington 5 1596 P. trivolvis, he naa Gld. Por 25 
1547 L. wank Wyoming 5 1597 LE ‘var, Trasku, Lea. Was 25 
1548 L. vaeieeata: ex tales 5 1598 P. var. occidentalis, Cooper, Or. 20 
1549 L. palustris, var. Nuttalliana, Lea. Utah 5 | 1999 Ee var. passing into next, Ten. 15 
1550 I, A Cal. s 1600 P. ‘““ var. bicarinatus, Say. Ore... 10 
at Da ee cere 5 iso 122, Be Melice ‘‘” large flat, Min. 10 
Tee) JON aA var. urmbrosa, Say, Utah.. 5 Whorls rounded above, subcarinated beneath. 
Tasaukan 7° var. Cal 5 Lip of the apeature rising above the plane 
BS54 Ly. var. clodes, Say. Utah. 5 of the spire. 
M5550 Dye, Uh Varo ti Say. Ore 5 | 1602 P. trivolvis, var. Minnesota 10 
155 Ouse ss var. expansa, Hald, Cal. 5 | 1603 P, s Saya aUitalieecceeeee, ete [0 
1557) dee oh var. reflexa, Say. Minn. 5 | 1604 P. ‘var, tumidns, Cpr. -Calif...... ite) 
1558 rs 3 Wari; a ay He 3/1605 P. ‘“ var. Oregonisis, Tryon, Ore.. 10 
TiVo) JU ee Var. ops Say. ‘5 5 | 1606 P. tire Wieltee Idaho 10 
1560 1. var. attenuata. 5 | Lips even with or falling below the plane of 
ee ae aemeudicney, Leng emer : , 
* tigers Teka ee | 1607 P. trivolvis, var. lentus, Say. Minn.... 10 
RRM BRAT ph he | 1608 P. ven) Mallee flatter, Oe eae LO 
’ GENUS PHYSA. | 1609 P. “‘ var. fallax, Texas.. Ba AS) 
1563 P, Gabbi, Tryon. California, Oregon ° 10 1610 P. ** var. near glabratus, Calif... 10 
1564 P. Carltonii, Lea. California........... to} 1611 P. ‘“ var. near tumidus, Wash.... 10 
1565 P. ampullacea? Gld. Idaho............ 10 | 1612 P, campanulatus, Say, Minnesota..... 5 
1500.E Sayin vlappen. gWtali....3.24.-- 34 Fons PeLiebmamt wOmmiceny le kaSa. ccc. ce 5 
1567 P. gytina, Say.) Calatonnia .jssj.0.128 5 |.1614 P. Havenensis, Pfr, ‘Lousiaua......... 10 
Nisfers) 122) gr OS small, Washington........... 5/1615 P. albus, Mull. Minnesota............... 10 
1569 3 heterostropha, eh Oregon, te 5 Subgenus Gyraulus. 
1570 P. “var. nlalleata, Tryon. Cal. 5 sip s mnileainenn@ ya reece 
Us 7fi0 0 ee . var, febegera, Lea. i a5) oe a ee Gld. Se ee a 
1572 P. War ee oN neg : \1618 G. dilatatus. Gld, Florida.....:......4: 5 
1573 P. Sevan ySvasety Tryon, Cal... 5 | Subgenus Menetus, 
m5 74) ie “var. virginia, Gld. Send. 51619 M. opercularis, Gld. California........ 5 
1575 P: “var. occidentalis, Tryon. Cal. 5|/1620 M. ‘“‘ var. planulatus, Cooper, Was. 15 
1576 P. “var. elliptica, Lea. Wash’n a | 1621 M. exactus, Say. Washington......... 5 
