DALL : NOTES ON THE GENUS AMPULI.ARIA. 53 



Shell planorboid. Ceratodes 



Pillar callous, umbilicus filled with callus. 



Shell globose. Limnopomics, 



Pillar appressed, spire depressed. 



Shell few whorled, spirally sculptured. Pomella. 



Respiratory siphon absent or obsolete. 



Shell globose. Asolene. 



Shell sinistral. 



Umbilicate, form trochoid. Lanistes. 



Imperforate, form bulimoid. Meladoiiius. 



A very detailed account of the habits and mode of respiration of 

 the American Anipullaria is given by Bavay (y. de Conchy I., vol. 23, 

 pp. 298-305, October, 1875), and of the Asiatic form by Ramanan 

 {J. Malacol., vol. 10, pp. 107-113, December, 1903). A partial 

 synonymy of the various groups follows, from which the main 

 systematic vicissitudes through which they have passed may be 

 deduced. The soft parts of Lunnopomus, Pomella^ Lanistes and 

 Meladonius are still in need of description and illustration. 



Genus PILA (Bolten). 

 Type Helix a?nprillacea Linne, Asia. 



1797. Pomus (Anonymous) Mus. Calonnianum, p. 58, [sole ex. Helix ampullacea L. , 



China]. 



1798. Pila Bolten, Mus. Boltenianum, ed. i., p. 145, ex parte. 

 1799- Aniptdlaria Lamarck, Prodrome, p. 76, ex parte. 

 1817. Conchylhcm Cuvier, Regne An., ii., p. 426, ex parte. 



1 82 1. AviptiUaria Sowerby, Genera, iv. ; A. rugosa Lam. 



1828. Pachystoiiia Guilding, Zool. Joiu-n., iii., p. 536 \^A. globosa Swainson, type, 



p. 539. Not Pachystouius Latreille, Diptera, 1809, nor Gray, 1840]. 



1840. Pachylabra Swainson, Malac. , p. 339 \_A. globosa Sw.]. 



1842. Pormis Sowerby, Conch. Man., ed. ii., p. 235; (Err. typ.). 



1847. Potniis Gray, Proc. Zool. Soc, p. 148 \H. ampullacea L.]. 



1854. Anipullaria H. & A. Adams, Gen. Rec. Moll., i. , p. 345. 



1859. Ainpiillaria Chenu, Man. de Conchyl., p. 313. 



1883. Anipullaria Tryon, Struct, and Syst. Conch., ii., p. 276. 



1885. Pachylabra Fischer, Man. de Conchyl., p. 757 [ZT. ampullacea L.]. 



Subgenus Saulea Gray. 

 Type Helix vitrea Born, Sierra Leone. 

 1867. Saulea Gray, Proc. Zool. Soc, p. 1,000 [not Saiila Gerst., Coleoptera, 185S]. 

 1 87 1. Saulia Crosse, y. de Conchyl., xix., p. 144. 

 1883. Saulea'Yxyow, Struct. Syst. Conch., ii., p. 276. 

 1885. Saulea Fischer, Man. de Conchyl., p. 757. 



Genus AMPULLARIA Lamarck. 

 Type Nerita urceus Miiller, Mississippi. 



1799. A mpullaria hsimarck, Prodrome, p. y 6, ex parte. 

 1801. Ampullaria Lamarck, Systeme, p. 93. 



