52 
albidd, maculis lineisque rufis nitide pictd; columelle margine 
livido-cinereo, intiis argenteo. 
Hab. Isle of Annaa (on the reefs) ; Cuming. 
An interesting species of rather light growth, exhibiting a very 
distinct and characteristic style of painting. 
Turso uistrio. Turb. testd subglobosd, tumidd, imperforatd, spire 
suturis excavato-canaliculatis, spiraliter liratis, liris subtilissime 
laminiferis, squamatis, squamis fortibus, erectis ; nived, aurantio- 
Serrugineo laié radiata, intis argented. 
Hab. ? 
A shell of ventricose growth, strongly scaled, whilst the entire 
surface is very minutely laminated. 
Turso Fiuctuarus. Turb. testd transverse ovatd, crassiusculd, 
subventricosd, imperforatd ; anfractibus levibus, supern? rudé an- 
gulatis, ad angulum obsoleté nodosis, infra liris plano-obtusis, hic 
illic feré evanidis cingulatis ; columelld concavd ; olivaced, lineis 
niveis viridi-umbratis, acute undatis conspicue longitudinaliter 
pictd, intiis argented ; operculo testaceo, spiraliter sulcato, medio 
subtilissime granuloso, marginem versus multiserrato. 
Hab. Punta, St. Elena, West Columbia; Cuming. 
An extremely interesting species, which, though of rare occurrence, 
has long been known to me by the above name: from whom it re- 
ceived that appellation, which is very characteristic, I cannot, how- 
ever, learn. It is a shell of solid growth, somewhat rudely noduled, 
and obscurely flatly ridged. The ground-colour is that of a livid 
olive, very conspicuously marked with numerous zigzag lightning-like 
streaks of bright body-white, shaded with dark green. 
The operculum is remarkable: testaceous and strongly spirally 
grooved, the innermost groove is broadly excavated, and the central 
mass is solid and minutely granulated, whilst the portion without the 
broad groove is arranged in numerous concentric, finely-serrated 
laminz. 
Mr. H. N. Turner communicated to the Meeting the result of his 
observations on the motions of flexion and extension in the wings of 
Birds. 
Mr. Griffith communicated a notice of the habits of a Beaver which 
had lived in confinement for the long period of fourteen years, most 
probably in consequence of its being placed in a dry and warm habi- 
tation, with occasional access to water. 
