
GLOSSARY 

Tentacles Feelers 
Terete Cylindrical and tapering 
Terminal At the end 
Tessellated Marked with checks or squares 
Thoracic Pertaining to the throat 
Translucent Nearly transparent 
Transverse Crosswise 
Trenchant Compressed to a sharp edge 
Trifurcated Forked; divided into three branches 
Truncate Abrupt; cut off square 
Tubercle A small excrescence like a pimple, a papilla 
Typical Of a structure the most usual of a group 
Umbilicus The navel 
Umbone Nucleus of a shell 
Vent The external opening of the alimentary canal; anus 
Ventral Pertaining to the abdomen 
Ventral fins The paired fins behind the pectoral fins, in fishes 
Ventrical One of the walls of the heart 
Vermes Worms 
Vertebra_ One of the bones of the spinal column 
Vertical Up and down 
Verticil A small whorl 
Viscid Sticky 
Viscous Slimy 
Viviparous Bringing forth living young 
Web Membrane connecting the toes; also the fin-rays in fishes 
Whorl Arrangement around a stem in plants; volution or turn of the spire of a snail 
