GLOSSARY.- 8 1 



Kllgose -wrinkled. 



Scalariform shaped like a ladder. 



Septibranchiate having gills modified into a muscular partition through which the 



divisions of the pallial chamber communicate by means of narrow orifices. 

 Serrate like the teeth of a saw. 



Sessile not supported on a stalk. Setaceous like bristles. 

 Shagreen covered with granules like the skin of certain sharks and rays. 

 Sinistral to the left hand. Sinuate curved in and out. Sinuous wavy. 

 Siphon a tube. Specific pertaining to species. 

 Spire the assemblage of whorls excepting the body whorl. 

 StreptoneurouS having the nerves twisted. 



Striated marked with slender lines like threads. Sub rather ; not quite. 

 Sulcate furrowed. Suture the line of junction between the whorls. 

 Tsenioglossa a section of the Monotocardia, having the radula of a compact ribbon 



shape. 



Tectibranchiate having the breathing organ covered by the mantle. 

 Terrestrial living on land and not in water. 



Tessellated patterned like a chess-board. Testaceous shelly. 

 ToxoglOSSa a section of the Monotocardia, having no teeth but marginals, so that the 



radula resembles an arrow. 



Translucent transmitting light, but not transparent. Truncate cut off short. 

 Tubercle a pimple. Tumid-swollen. 

 Turbinated shaped like a top. Turreted rising in steps. 

 Ulate shaped like an awl. Umbilicated having an umbilicus. 

 Umbilicus the hole at the base of the axis in univalve shells. UmbO the beak. 

 Ungulated shaped like a finger-nail. Unilateral on one side only. 

 VariX a raised band or ridge. VentriCOSO -swollen. 



Vermiform -shaped like a worm. VerruCOSe warty. VisCOUS sticky. 

 Vitreous glassy. Viviparous Producing young in a living and perfect state. 

 Volution a whorl. 



Whorl a single revolution of the spire in a univalve shell. 

 Zy go branchiate having the gills in pairs as if yoked. 



