6S Moll 
MOLLUSCA. 
original work of Montagu, in which pi. xv. fig. 2, Turbo coniferus, has no 
resemblance to a Columhella.'] 
Rissoina elegantula and lirata, spp. nn., Angas, P. Z. S. 1880, p. 417, 
pi. xl. figs. 10 & 11, fit. Vincent’s Gulf, S. Australia. 
Rissoina terehroides, sp. n., E. A. Smith, J. L. S. xii. p. 654, pi. xxx. 
fig. 19, Solomon Islands. 
Rissoina kershawi and supra- sculp ta, J. E. Tenison Woods, Tr. R. Soc. 
Viet. xiv. [1878], p. 67 ; R. minutissima and unilirata^ id. P. R. Soc. 
Tasm. 1877 [1878], pp. 122 & 123 : spp. nn., all from Tasmania. 
Rissoa (^Alvania) mauritiana^ sp. n.. Martens, Moll. Maur. p. 285, 
pi. XX. fig. 17, Mauritius. 
Rissoa (Ceratia) punctato-striata, sp. n., J. E. Tenison Woods, P. R. 
Soc. Tasm 1878 [1879], p. 35, Table Cape, Tasmania. 
Barleeia ? microthyra^ sp. n.. Martens, Moll. Maur. p. 285, pi. xx. fig. 17, 
Mauritius. 
S. Clessin discusses the known genera of the freshwater Rissoidee, and 
arranges them as follows : — 
Subfam. 1 — BytJiiniince : Bythinia^ Nematura^ Euchilus, the last only 
fossil. 
Subfam. 2 — Benedictiinoi : Benedictia (Dybowski). 
Subfam. 3 — Hydrobiince : Hydrobia (Hartm., Frauenfeld), with subg. 
Thermydrobia (Paulucci) j Vitrella (Cless.), Belgrandia (Bourg.), 
Tryonia (Stimps.), Frauenfeldia (Clessin), and Bythinella (Moq. 
Tand.). 
Subfam. 4 — Fluminicolince : Lithoglyphus (Ziegler), including Flu- 
minicola {Stimps.) \ Gillia (Stimps.), Cochliopa (Stimps.), 
gyrus (Gill), Amnicola (Gray). 
Subfam. 5 — Emmericiince : Emmericia (Brusina), Nematurella (Sand- 
berger, only fossil), Stalion (Brusina), Nystia (Turn.), Fossa- 
rulus (Neum.), Prososthenia (Neum.). 
Subfam. 6 — Pomatiopsince : Pomatiopsis (Tryon). 
He thinks that Pyrgula, Baicalia, and Gerstfeldtia will be better placed 
among the Melaniidce. Mai. Bl. (2) ii. pp. 169-196. 
Stenothyra woodmasoniana, Port Canning, hungerfordiana, Andaman 
Islands, blanfordiana^ Chilka Lake, also Port Canning and Madras, 
spp. nn., Nevill, J. A. S. B. xlix. pt. 2, pp. 159 & 160. 
Hydrobia stagnalis (L.), var., 6^ millim. long, at the mouth of the 
Elbe ; Borcherding, Nachr. mal. Ges. 1880, p. 23. 
Hydrobia vitrea, var. quenstedti, found alive at the entrance of the cave 
of Falkenstein ; Fries, Wiirtt. nat. J. H. 1880, p. 113. 
Belgrandia thermalis (L.), var. n. minuta, Mme. Paulucci, Catalogo 
della sezione Italiana dell’ Esposizione internazionale di Pesca in Berlino, 
p. 192 (German edn., p. 71), Calenzano, Tuscany, in a streamlet. 
Hydrobia {Belgrandia') miliacea, sp. n., Nevill, J. A. S. B. xlix. pt. 2, 
p. 161, Port Canning, near Calcutta. 
Bythinia victorice^ sp. n., J. E. Tenison Woods, Tr. R. Soc. Viet. xxiv. 
[1878], p. 65, Geelong, Australia. Is a Bythinella ; id. P. R. Soc. Tasm. 
1878 [1879], p. 71. 
