12 
W. D. ROEBUCK AND J. W. TAYLOR- 
1878. 
Jeffreys (J. G.). Notes on some Eritish Land and Fresh-water 
Shells: Ann . and Mag. Nat. Mist., Ser. 5, vol. ii, pp. 377-382, 
Nov. 1878. p. 378 .—Succinea putris, S. virescens. p. 380.— 
Vertigo Moulinsiana. 
1880. 
Groves (Henry). On the Occurrence of Vertigo Moulinsiana, 
Dupuy, in Hertfordshire: Trans. Hertfordshire Nat. Mist. Soc., 
vol. i, part 2, Dec. 1880, (with Plate), pp. 81, 82.— Vertigo 
Moulinsiana, V. antivertigo. 
Dimmer (R.). Land and Fresh-water Shells of the Eritish Isles, 
p. 3 .—Sphcerium corneum , vars. flavescens, Nucleus , and Scaldiana . 
p. 27 .—Paludina vivipara , var. unicolor, p. 92 .—Succinea putris , 
var. vitrea—S. virescens. p. 121 .—Melix arbustorum, var. alpestris. 
p. 159.— Vertigo Moulinsiana. 
1881. 
Jeffreys (J. G.). [Remarks on a few species of Hertfordshire 
Mollusca] : Trans. Hertfordshire Nat. Mist. Soc., vol. i, part 4, 
April, 1881. pp.xvi, xvii.— Vertigo Moulinsiana, Succinea [virescens'], 
S. putris, and S. elegans. 
Taylor (J. W.). Life-histories of Eritish Helices [No. 1. H. 
arbustorum] : Journal of Conchology, vol. iii, Oct. 1881. pp. 247, 
255.— M. arbustorum , var. alpestris. 
1883. 
Loydell (A.) and Rowe (E. H.). Conchologists’ Report: Report 
of the Lambeth Field Club and Scientific Society for 1882-83, pp. 
18-22. p. 20 .—Limncea peregra, L. stagnalis, and L. palustris. 
p. 21 .—Zonites glaber, Melix pomatia var. albida, M ’ nemoralis, M. 
hortensis, M. arbustorum, M. Cantiana , and M. sericea. 
Taylor (J. ~W.). Paludina vivipara, v. unicolor, Jeff.: Journ. of 
Conch., vol. iv, Oct. 1883. pp. 127-128 .—Paludina vivipara, var. 
efasciata, Pick. 
II.—Catalogue of Species and Varieties of Hertfordshire 
Mollusca referred to in the above Works, with 
Annotations. 
Sph 2 erium corneum, var. flavescens( Macgill .); var. Nucleus {Stud.); 
var. Scaldiana {Norm.). 
All these forms are recorded for Watford by Dimmer, on the 
authority of Rich. 
Anodonta cygnea (X.). 
Forbes and Hanley remark that they _ “ need not specify any 
peculiar localities for a species so universally diffused throughout 
Europe, hut may observe that several of the more remarkable 
forms [are obtained] in the river Lea, near the Metropolis.” 
Paludina contecta {Millet). 
D. Cooper in 1836 recorded P. vivipara { = P. contecta) as found 
in the “New River” by Thomas Eell, James Carter, and himself. 
