GASTROPODA (pECTINIBRANCHIA) . 
Moll, 53 
Yalvatid^. 
Valvata glacialis, s?p. n.,Westerlund, GEfv. Ak. Fork. 1881, p. 67, Sweden, 
subfossil. 
Valvata alpestris (Blauner), found also in Lapland and subfossil on the 
island Oland ; id. 1. c. p. 48. 
Valvata alpestris var. u. platti, peat-ground at Lonato, prov. Brescia 
Adami, Bull. Soc. mal. Ital. vii. p. 198. 
Valvata borealis, sp. n., and fiuviatilis (Colbeau), var. n. Jcliniensis, 
Milachevich, Moll. Mosc. p. 22, Government of Moscow. 
Valvata neglecta, new name for V. minuta (Morch & Kiister, pro- 
bably not Draparnaud), from Denmark and Germany; Westerlund, 
JB. mal. Ges. viii. p. 6. 
Valvata fagoti (Bourguignat, MS.), sp. n.. Fagot, Bull. Soc. Z. Fr. 
1881, p. 141, St. Pardoult, Dep. Charente luferieure. 
Valvata halatonica, sp. n., Sorvain, Hist. mal. lac Balaton, p. 96, 
Hungary. ' 
AMPULLARIIDiE. 
Ampullaria. An alphabetical list of the known species ; Gaudion, in 
Bulletin de la Societe d’Etude des Sciences naturelles de Beziers, iv, 
(1879). [Not seen by the Eecorder], 
Ampullaria stoliczkana (Nevill), Penang, figured ; Nevill, J. A. S. B. 1. 
pt. 2, p. 165, pi. vi. fig. 11. 
Ampullaria gradata, sp. n., E. A, Smith, P. Z. S. 1881, p. 289, pi. xxxiii, 
fig. 22, Lake Nyassa. 
Lanistes purpureus (Jonas) and ajjinis (E. A. Smith, 1877), Lake Nyassa ; 
id. 1. c. p. 290, the latter pi. xxxiv. fig. 23. 
Calyptr^id^. 
Crepidula (Lam.), generic name preferred to Crgpta (Humphrey, 
which was not characterized) ; Dali, Bull. Mus. C. Z. ix. pp. 79 & 80. 
Yermetid.®. 
Bivonia exserta, sp. n., Dali, 1. c. p. 39, Gulf of Mexico. 
Siliquaria modesta, sp. n., id. I, c. p. 39, Gulf of Mexico, in all depths 
from 80-800 fath. 
SCALARIID.®, 
Scalaria pourtalesi and dalliana, spp. nn., Verrill, Am. J. Sci. (3) xx. 
[1880] p. 395, N. E. Coast of America, 115 fath. 
Acirsa gracilis, sp. n., id. P. U. S. Nat. Mus. iii. p. 377 [1880], Southern 
New England, 100-365 fath. 
Adis striata, sp. n., id. ibid., Southern New England. 
Adis mizon, sp. n., Teneriffe, 78 fath., hyalina and sarissa, spp. nn., 
Pernambuco, 350 fath., Watson, J. L. S. xv. pp. 245-247. 
