i8o Quarterly Journal of Conchology. 



DESCRIPTION OF A NEW SPECIES OF PUSIONELLA. 



By F. P. MARRAT. 



Pusionella recurvirostris, n. s. 



Pus. testa elongato-fusiforini, acuminata, ad basin recurva, intus 

 extusque livido-olivacea, anfractibus superne declivibus, apicem 

 versus plicatis et subnodosis, cceteris lavibus, politis, apertura 

 oz>ali, labri limbo Icevi. 



Hab. Cape Blanco, West coast of Africa. 



ON THE HABITS OF HELIX FUSCA. 

 By CHARLES ASHFORD. 



On Christinas day a few winters ago I was walking with some 

 friends through Saltram Wood, three miles from Plymouth, when 

 I noticed two individuals ol H. fusca upon__the herbage of the bank. 

 As the weather was cold I was rather surprised to find this species 

 abroad while its more thickly clad congeners were hybernating below 

 the surface. The temperature fell considerably during the next few 

 days, and I visited the spot repeatedly to find, if possible, the limit 

 to the endurance of this slender mollusk. The following notes 

 from ray memoranda at the time will best show the result. Dec. 

 26th — the thermometer at early morning registered 26° and the her- 

 bage was fringed with sparkling crystals of rime, notwithstanding 

 which the little creatures were abroad and lively, crawling up the 

 blades of the Great Hairy Woodrush (Luzulasylvatica)not simply 

 indifferent to a temperature which benumbed my own extremities 

 but positively agile. Dec, 27th — min. temp. 28°. Dec. 28th — min. 

 temp. 28°. This morning H. fusca still about and vigorous. Dec. 

 29th — temp. 25°. Dec. 30th — temp. 32°. After an hour's search I 



