o78 
GLOSSARY. 
Sub-external, somewhat external 
Sub-lobate, somewhat rounded with 
edges 
Sub-orbicular, somewhat spherical 
Sub-quadrated, somewhat square 
Sub-quadrangular, somewhat four- 
angied 
Sub-rotund, somewhat round 
Sub.triangular, somewhat triangular 
Subulate, awl-shaped 
Sulcated, furrowed 
Sulci, furrows 
Summit, tip or apex 
Suture, a hollow line of division, in 
univalve shells, the spiral line which 
separates the whorls. 
Talon, the claw of a bird, generally 
used to birds of prey 
Teats, the nipples of animals which 
suckle their young 
Temporal, relating to the temples of 
the head 
Tentacula, feelers or horns of snails, &c. 
Tesselated, chequered like a chess¬ 
board 
Testaceous, consisting of carbonate of 
lime and animal matter, as in the 
shells of molluscous animals 
Tetradactyle, four-fingered 
Tetragonal, four cornered 
Terminal, at the end fir termination 
Tissue, any interwoven substance 
Torose, swelling out, knobs or protu¬ 
berances 
Tortuosity, wreath, flexure 
Tortuous, twisted, wreathed, winding 
Trachea, the wind pipe or gullet 
Tranchant, cutting 
Transverse, placed across or cross- 
ways ; in conchology when the 
breadth of a shell is greater than 
its length it is called transverse 
Trapeziform, shaped like a trapezium 
Tricuspidated, three-pointed 
Trigonal, having three angles 
Triturate, to grind any substance as 
with the rubbing of the teeth 
Truncated, stunted, cut short, or ab¬ 
ruptly off at the end 
Tubercle, a little knot or pimple 
Tuberculated, knotted, pimpled 
Tuberosities, prominent knots or ex¬ 
crescences 
Tubulate, tubulous or hollow 
Tunicated, coated. 
I 
Turbinated, shaped like a top or pear 
Turgid, swollen 
Umbilicated, having a hollow like a 
navel 
Umbo, in bivalve shells, the round part 
which turns the hinge 
Umbonate, based, having a raised knot 
in the centre 
Unctuous, greasy 
Undulated, waved, having a waved 
surface 
Ungulate, shaped like a horse’s hoof 
Unilocular, having one chamber, or 
compartment 
Univalve, consisting of one valve or 
piece 
Urceolate, swelling at the middle like 
a pitcher. 
Varex, a longitudinal rib, in univalve 
shells 
Varices, longitudinal ribs 
Variety, is when one species differs in 
some little degree from that of an¬ 
other. 
Vascular, consisting of vessels 
Vaulted, like the roof of one’s mouth 
Venter, the belly 
Ventral, belongingto the belly 
Ventricose, inflated, swelled in the 
middle 
Vermiform, worm-shaped 
Verrucose, warted 
Vertebra?, the bone3 which compose 
the spine or back-bone 
Vertebrated, provided with vertebrae 
Vertex, the top or highest point, as the 
tip of a cone 
Verticulated, whirled 
v!!ioS,H^ 
Volutions, wreaths, or whorls of the 
spire of univalve shells 
Vulva, a spatulated mark in several 
bivalve shells, formed when the 
valves are united on the posterior 
and anterior slopes 
Whorl, one of the wreaths or turnings 
of univalve shells 
Zoned, surrounded with one or more 
girdles or belts. 
END OF VOL. I. 
Carded 
GLASGOW: 
PUM-ARTON & C0„ PRINTERS, Vri-LAPIEI.I). 
% 
(cc U X T 
