BIBLIOGRAPHY : MOLLUSCA, 1890 AND 1891. 31 
F, W. Fierk York S.E. 
Exhibits [to nch. Soc. ; Limnza peregra from Riplingham (details 
given), Vertigo na atolls and V. pygmea from Speeton ; last also from Drewton 
Vale ; named varieties of Helix hortensis from Cottingham and of H. 
sebariis hon Burstwick near Hull]. J. of Conch., Oct. 1891, p. 398. 
F. W. FRIEKE [sic]. York S.E. 
[East pi Shells ; brag edentula and V. pygmza from Speeton 
Cliffs ; last-named also from Drenton {sic] Valé; Lz, — ca peregra swarming 
in maak pond atoll devoid of vegetation, on the Wolds at Phere era ; 
Helix hortensis var. anea from Cottingham, an moratis 
hyalozonata Viseslehiale yee Burstw - near ull}. Conch, Sari, Oct. 7th 
1891 ; The Conch., Dec. 24th, 1891, ‘ 
HILDERIC FRIEND. Cumberland, 
order Sketches. . . Note aR the Conchology of Cumberland, I. 
Marine Shells {begins wih mention of Helix nemoralis and Z. oo ‘as 
occurring on the Solway shores]. Young Nat., Ap. 1890, pp. 61-6 
HILDERIC FRIE Cumberland, Westmorland. 
[Exhibition Pe " Bultin smc — as new to Cumberland, and of He 
ertcetorune “ metnor Hf. virgata vars. albescens and rae from 
<endal]. nch. Soc., an 8th, 1890 ; J. of Conch., July 1890, p. 240. 
C. CLARE Aa Derbyshire. 
and Banding in Lan d Freshwater Shells [with 
an incidental mention of ae oe joan v. minor from Allport, Derbyshire]. 
Sci. G 
C. CLARE FRYER. Derbyshire. 
ventitious Protection in Freshwater Mollusca manifested in 
yincea peregra “y Md Lathkiln, De: aprahiire,. a clear stream highly charge br 
with carbonate of lime in solution, the shells being a coated with 
a deposit of it]. "the Conchologist, 24th June, 1891, 
W. GaINn. Notts. 
Large Unios and Anodons [in Ossington Lake; giving —— 
of Anodonta cygnea and Unio pictorum). Sci. Goss., Jan. 1885, p. 
W. A. GAI pe ee 
Molluscan Captives [giving accounts of Ari eee A. subfuscus, 
A. hortensis, and A. wae as observed in confinem doubtless Notts 
examples]. Brit. Nat., . 1891, p. 224. [Comceation - notes on Limax 
arborum, L. flavus, ra vale Hf. arbustorum, H. cantiana, H. virgata, 
Z. nitidulus, Arion ater, A. minimus, and A oS many of them 
doubtless Notts examples]. Brit. Nat., Nov. ‘on, pp. 225-227. 
W. A. GAIN. Notts. 
Power of the Limnidz [sic] to resist Cold [as observed at Tuxford 
near Newark; Limnea peregra, L. stagnalis, Planorbis corneus, and 
Pl. complanatus, all young, and living on the break-u up of the ice, while 
Pisidium "Wattitloon were all dead]. Sci. Goss., May 1891, p. 118. 
RICHARD HANITSCH. Lanc. S. 
ibutions to the Anatomy and History o 7 ee 
an old quarry near a near the ‘ a 
Derbyshire. 
Exhibition of Zonites fulvus var. eee eee nae 
aculeata, and H, /amellata from Darley Dale, the last being a 
record for Derbyshire; Conch. Soc., 2nd July, 800). J. of Conch., Oct. 
