88 INDEX. 
Page 
Roemer, work of . . : : : fo ml 
Rules of British Association . : ; 5 Aly 
Scalpellum angustum . . 5 : - of 
5 arcuatum . - 4 Z . 40 
of cretaceous species allied to S. magnum 21 
3 (2) cretee . 5 : : » 45 
PH fossula : : ; 2 5 pl 
3 Genus of cS 4 : : 5 116 
iy hastatum 5 : : 4 GY 
es lineatum s ; ; 4 OD 
ip magnum sg ; c : ~ 18 
_ maximum . ; : “ «+ 26 
re maximum, var. cylindraceum OO 
mr maximum, var. suleatum ; a or! 
a ornatum ‘ : : é om23 
ms quadratum . 3 ; 4 ee, 
A quadricarinatum . ; ; 5 ais! 
ri rutilum : ; ; F itay5 43} 
yr semiporeatum : E . . 44 
; simplex 5 ; ; : 5!) 
a3 solidulum . ; : P aa 42 
a Sub-genera of : ; ; 3 15 
rf trilineatum : 4 : oS 

Page 
Scalpellum tubercul: um 43 
AS villosum 14 
Ss vulgare, sex of 5 . 16 
Sexes, peculiarities of, in Scalpellum  . 15, 23 
Sowerby, G. B., on a fossil Anatifa 7 
Sowerby, J., work of : 1 
" on the genus Xiphidium 15 
Steenstrup, Professor, work of ; ; Seti 
3 a on age of beds of Scania 7 
= 33 on P. solidulus 42 
Stomapoda . 0 : 4 6 12 
Stutchbury, Mr., on fossil Cirripedes 5 
Thaliella 15 
Trigonellites 3 
Tubicinella fossil 5 
Valves, nomenclature of 9 
Verruca fossil in the chalk j 5 
Wetherell, Mr., on a well at Hampstead . 22 
NXiphidium, Genus 15 
angustum 37 
9 quadratum . 22 
as maximum 61 
