SYNOPSIS OF THE FAMILIES. 
PAGE 
Section—S1PHoNosToMATA.—Peritreme notched or produced into a 
canal. 
Sub-section—Toxog Lossa.—Teeth 1.0.1, or rudimentary. 
Family—Conide.—Tentacles subulate ; eyes on their outer sides - 41 
e Terebride.—Tecth rudimentar y ; tentacles small; eyes on 
their tips, or wanting - - - 41 
3 Pleurotomide.—Mantle with a slit on fhe right side, behind- 42 
a Cancellaritide.—Teeth rudimentary. Tentacles far apart ; 
eyes near their outer bases - - - . - 45 
Sub-section—Hamicrossa.—Teeth 1.1.1. 
Family—Muricide.—Siphon straight. Columella smooth - - 46 
‘3 Buccinide.—Siphon recurved. Foot simple - - - 52 
af Ancillide —Siphon recurved. Foot large and lobed - 58 
is Lamellariide .—Shell'thin, covered by the hind lobe of the foot 59 
3 Fasciolariide.—Siphon straight ; columella plaited ; lateral 
teeth broad - - - - - - 59 
3 Mitride.—Columella plaited. Operculum none = - 60 
Sub-section—RuAcuHiGLossa.—Teeth 0.1.0. 
Family— Volutide.—Tentacles far apart ; eyes sessile - - - 61 
A Marginellide.—Tentacles close together at the base ; eyes on 
the tentacles - - - . - - 62 
Sub-section—T n1oGLossa.—Teeth 3.1.3. 
Series—PROBOSCIDIFERA. —Head small ; probosis retractile. 
Family—T7ritoniide.—NSiphon straight ; foot small with an operculum - 63 
“i Doliide.—Siphon recurved ; foot small, no operculum - 65 
ns Cassidide.—Niphon recurved ; foot large, with an operculum - 65 
Series—RostRIFERA.—Head produced into a rostrum. 
Family—Cypreide.—Rostrum short ; mantle with large side lobes ; 
shell polished - - - - - - 66 
$5 Aporrhaide.—Rostrum long ; mantle expanded ; shell with 
the canal bent to the right - - - 5. iy 
55 Trichotrpoide.—Rostrum short ; mantle simple ; shell cover- 
ed with an epidermis - - - - - 68 
Section—Ho.ostomata.—Peritreme entire. 
Sub-Section—PrenoGLossa.—Teeth w.0.”. 
F Tentacles subulate ; foot with a fold in front ; 
shell turreted, variced - - é E - 69 
ee Solariide.—Tentacles folded ; foot simple ; shell trochiform ; 
widely perforated  - - = =O 
- Janthinide —Tentacles short; foot with a vesicular appendage; 
shell thin, blue - - : - z = 70 
Sub-section—Tanioc1Lossa.—-Teeth 3.1.3. 
Series—PROBOSCIDIFERA.—Head small ; probosis retractile. 
Family—WNaticide.—Shell globular ; tentacles wide apart, united by a 
veil - - E = - - - 5 Yi) 
f Pyramidellide.—Shell turreted ; tentacles SOS one 
the eyes on their inner sides. 12 
“ Hulimide.—Shell turreted ; BENS Se subulate, with the eyes 
at their outer bases - 73 
Series—RosrrirERA.—Head produced into a rostrum. 
Family— Cerithiide.—Shell channelled in front, turreted; eyes on show 
pedicels at outer bases of tentacles - 73 
- Melaniide.—Shell with a dark colored epitemus: Fresh or 
brackish water - - 75 
Ap Littorinide.—Shell turbinated or tr ochiform, Eyes on the 
outer sides of the tentacles - - - = wihe 
FA Rissoide, —Shells small, spiral ; eyes at the outer bases of the 
tentacles ; operculum sub-spiral = - - - - 80 
