IG 



4l4.Gen.Cryptella Webb. 

 415. „ Parmarion v. Marts. 



LXXXV. Farn. Auriculacea Blvll. 



I. Sbfam. Ötinea Pfr. 

 4 IG. (Jen. Utina Gray. 



II. Sbfam. Helampea Gray. 

 417.Gen.Melampus Mft. 



418. ,, Marinula King. 



419. ., Pedipes Adanson. 



III. Sbfam. Auriculea Pfr. 



420. Gen. Py tbia Bolt. 



421. .. Plecotrema H. Ads. 



422. „ Cassidula Fer. 



423. ,, Auricula Lm. 



424. ., Ale xia Leach. 



425. ., Blauneria Sb. 



426. .. Leuconia Gray. 



427. ., Carychium Müll. 



LXXXVI. Fani. Limnaeidae Oben. 



I. Trib. Limnaeinae Clien. 

 428. Gen. C bilina Gray. 



Dombeya D'Orb. 

 Potamophila Sw. 

 429. ,, Linmaea Lm. 



Lomastoma Rfq. 

 l.Subg. Limnaea Lm. s. str. 



2. ,. Keristoma Klein. 



Gulnaria Leacb. 



3. „ Bulimnea Hldm. 



4. ., Limnophysa Fitz. 



Stagnicola Leach. 



5. ,, Gmphiscola Rafq. 

 C. ,. Acella Hldm. 



t30.Gen.Erinna A. Ads. 



431. ,, Ampbipeplea Nilss. 



Myxas Leacb. 



432. ., Physa Drp. 



Rivicola Fitz. 



1. Subg. Physa Drp. s. str. 



2. „ Physella Hldm. 



3. .. Physiodon ,. 



1 33. Gen. P h y s o p s i s Krss. 

 Dil. ,. Camptoceros Bens. 

 435. .. Aplexus Gray. 

 Bulinus Adanson. 

 l.Subg. Aplexus Gray. s. str. 

 2. ,, Isidora Fhbg. 



Diastropha Gray. 

 II. Trib. Planorbinae Oben. 

 43G.Gen.Planorbis Guett. 

 Coretus Adanson. 

 l.Subg. Planorbis Guett. s. str. 



2. „ Planorbella Hldm. 



3. ,, Helisoma Sw. 



4. Subg. Taphius II. Ads. 



5. ,, Menestns ,, 

 G. ,, Anisus Stud. 



7. ,, Spirorbis Sw. 



8. ,. Nautilina Stein. 



437. Gen. Segmentina Flmg. 

 III. Trib. Anc3'liuae Oben. 



438. Gen. Ancylus Geolfr. 

 4.'!'.». .. Acroloxus Bk. 



440. ,, Latia Gray. 



441. ,, Gundlachia Pfr. 

 LXXXVII. Fam. Ampullaceridae 



Chen. 



442. Gen. Ampullacera Quoy. 



Amphibola Schum. 

 Tballocera Sw. 



1. Subg. Ampullacera Quoy. s. str. 



2. ,, Ampullarina Sow. 

 LXXXVIII. Fam. Siphonaridae Gray. 

 4 1.'!. Gen. Siphonaria. Sow. 



Liria Gray. 

 Trimusculus Schmidt 



II. Ord. Pneumonopoma Pfr. 



I. Sbord. Opisophthalma 

 Pfr. 



LXXX1X. Fam. Aciculacea Pfr. 

 444. Gen. Acicula Hrtm. 



445. ,, Paladitha Bourg. 



446. ,, Moitessieria „ 



447. ,, Geom elania Pfr. 



448. ., Cbittya Livsy. 



449. ., Truncatella Eisso. 



450. ,, Tomichia Bens. 



451. ., Blanfordia H. Ads. 



452. .. Cecina ,, 



XC. Fam. Diplommatinacea Pfr. 

 l.'i.'l.Gen. I>i plommatina Bens. 



454. .. Moussonia Semp. 



455. ,. Palaina ,, 

 45ii. ,, Clostopsis Bens. 



457. ,. Arinia H. Ads. 



458. „ Paxillus „ 



IL Sbord. Ectoplitho lma Pfr. 

 XCI. Fam. Cyclostomacea Pfr. 

 I. Sbfam. Cyclotea Pfr. 

 459. ( ien. Cy c 1 otu s Ghlg. 



460. ., Buckle va Higgins. 



461. „ Cyathopoma Blfd. 



462. X Opisthoporus Bens. 



463. .. Khiostoma „ 

 164. ,. Pterocyclos ,, 



