52 MolL 
MOLLUSC A. 
Eulima tusmanka, sp. u., J. E. T. Woods, P. R. So'-. 1'asm, '875, p. 20, 
Tasmania. 
PYRAMIDELLIDiB, 
Pyramidella mediterranea (Monterosato), coast of N. Africa, differen- 
tiated from mimtscula ; Monterosato, Bull. Soc. mal. Ital. v. p. 224. 
Odostomia alba, sp. n., Calkins, P. Davenp. Ac. ii. p. 239, pi. viii. fig. 3, 
Florida. 
Odostomia tasmanica, sp. n.. Woods, 1. c. p. 29, Tasmania. 
Mathilda semperi (Brnsina, 1877) preoccupied by Turnouer, 1874, 
fossil ; J, do Conch, xxvii. p. 36. 
SOUTIBRANOIIIA. 
Neeitid^. 
Nerita umlaasiana (Krauss) var. from Mozambique ; Martens, MB. 
Ak. Berl. 1879, p. 734. 
Neritina. E. v. Martens finishes his monograph of this genus in 
JCiistor’s Conch. Cab. pt. 285, pp. 209-303, pis. xx.-xxiii , di.scussing first 
N. fluviatilis (L.) with its numerous local and geographical varieties, and 
18 further more or less allied species from Southern Europe, N. Africa, 
or W. Asia, including hispalensis, sp. n., p. 230, pi. xxii. figs. 20 & 21, 
Seville, heldreichi (Schwerzenbach, MS.), sp. n., p. 225, pi. xxii. figs. 9 & 
10, Asia Minor, pallida (Bunker, 1861) p. 239, pi. xxiii. figs. 11 & 12, 
Persepolis, figured for the first time. 
Neritina, subg. Neritilia (Martens, 1869), succinca (Reel.), Guadelupo, 
consimilis, sp. n., p. 244, pi. xxiii. figs. 25 & 26, Mauritius, rulida (Pease), 
Tahiti, Upolu, Viti, and manoeli (Dohrn), Prince’s Island, W. Africa, id. 
1. c. pp. 241-245, pi. xxiii. figs. 19-26. 
Neritina, subg. Smaragdia (Issel) viridis (L.), West Indies and Medi- 
terranean, rangiana (Recluz), from the Red Sea, &c., Australia, and the 
Philippines, souverbiana (Montrouz.), Port Jackson and New Caledonia, 
and glabrata (Sow.), W. Africa, the three first truly marine ; id, 1. c. 
pp. 245-253, pi. xxiii. figs. 27-34. 
The monograph is concluded by a list of dubious species, some addi- 
tions to the previous parts, two tables on the geographical distribution 
of the species of this genus, which are remarkably more copious on islands 
and peninsulas than on the mainlands of the great continents, and a plate 
representing some living animals with the radula and opercules of the 
subgenera. 
Neritina sulculosa, sp. n., distinguished from spiralis (Reeve), which = 
obtusa (Bens.), id. 1. c. p. 278, pi. viii. figs. 23-26, Larentuka. 
Neritina zigzag (Lam.) belongs to lineolata (Lam.) ; id. 1. c. p. 280, 
pi. xxiii. figs. 35 & 36. 
Neritina (Neripteron') marmorata, sp. n.. Brazier, P. Linn. Soc. N. S. W. 
11. [1877] p. 22, Katow River, New Guinea. 
