430 PYRAMIDELLID/. 
Cu. Sanpvicensis, nobis et Walker, Test. Min. Rar. 
Odostomia dolioliformis, Brit. Moll. iii. p. 301, pl. 97.f.5; and iv. 
p- 281. 
, Jeffreys. 
Testa subovalis, inflata, subpellucida, pruinosa, anfractibus quatuor, 
duobus ultimis tumidis, superne turriculatis, lineis flexuosis, spi- 
raliter cinctis, striis incrementi prominulis, densis, obliquis, decus- 
satis ; anfractu basali, plusquam dimidiam teste superante. Apex 
in gyrum sequentem reflexus. Apertura subovalis, ad basin 
rotundata, effusa, supra in brevem rectangulum desinens. Labium 
columnare reflexum, incrassatum, umbilicum angustum obtegens, 
superne plicam conspicuam gerens. Margo externa simplex. 
Axis circa ;';, diameter ;'; unciz. 
Exmouth, August 1850. 
I have just obtained fine specimens of this rare species, 
first discovered by Mr. Walker at Sandwich, and rediscovered 
by myself at Exmouth nearly thirty years ago. From an exa- 
mination of my present acquisitions at this place, I am bound, 
in justice to that naturalist’s diagnosis, to confirm the state- 
ment that his shell has a quwasi-reticulated aspect, resulting 
from the close-set raised lines of increment, crossing the 
spiral striz, though irregularly. Mr. Walker’s phrase of “ ele- 
gantly reticulated” is not borne out, nor is the shell pellucid, 
but sub-opake and frosted; its texture and colour somewhat 
resemble the Bullea pruinosa. Some of the recent specimens 
were taken alive ; but unfortunately, before they were detected, 
the animals had become asphyxied beyond resuscitation by 
immersion in their natural element. Notwithstanding these 
discrepancies in Mr. Walker’s and my specific characters, I 
have scarcely a doubt of this bemg the species he meant to 
designate, making due allowances for the lax and less precise 
descriptions of his day. For imstance, he says, the shell has 
three volutions ;—a cursory view would assign it that number ; 
but the conchologists of that period, with the exception of the 
accurate Montagu, were not aware that the apical turns in a 
certain tribe of the minuter species were reflexed on the sub- 
sequent one. Mr. Walker’s specific characters are perhaps 
insufficient for positive identification. At the time of the re- 
