*,* The nomenclature and arrangement are taken (with a few slight modifications) from the “ British Mollusca” of 
Messrs. Forbes and Hanley. 
Neen _ EE 
Species. 
Octopus, Cuvier. 
WIIDAUES PEs ce cag cs > eine 
Exepone, Leach. : 
octopodia, Penn. ............ 
Rossta, Owen. 
(OR Lh 1/0 ee Oe ene 
macrosoma, Delle Chiaje....... 
Seproxa, Leach. 
Rondeletii, Leach .......... 
Atlantica, D’Orbigny ........ 
OmmastrepnEs, D’ Orbigny. 
sagittatus, Lam. ..........-- 
todarus, Delle Chiaje .......- 
1] aE ge 71 Se 
Loxieo, Lamarck. 
vulgaris, Zam. ? (Forbesi, Stp.) 
MNGUIH EIU: Tedh sis sn eves 
marmore, Verany (media, var.) 
Serra, Linneus. 
Officinalis, Zamm, ......-+..0.6% 
fathoms. | fathoms. 
CIEGOIGh 27 hie OPIN Hetig epi umoe 
biserialis, De Montfort ...... 
Murex, Linneus. 
ermaceus, Jinn. .........-+- 
corallinus, Scacchi ........-. 
Tropuon, Montfort. 
clathratus, Zinn. .........-% = 
muricatus, Mont. ........-- 
Barvicensis, Johnston .......- 
Fusvus, Lamarck. 
gracilis, Da Oosta........+--- 
propinquus, Alder ......---+) 
Berniciensis, King ......---+ 
antiquus, Linn. .......-+++: 
Norvegicus, Chemn. ......-.| 
Turtoni, Bean ....... ea eee 
Buccrnum, Linneus.  ' 
undatum; Zinn. .......-+-+: } 
Dalei, J. Sowerby ......-+-- | 
Humphresianum, Bennett .... 
fusiforme, Broderip ......+--> 
CEPHALOPODA. 
Range. pote al Ground. 
GASTEROPODA. 
ORDER PROSOBRANCHIATA. 
Observations. 
