GLOSSARY 



OF TERMS USED IN CONCHOLOGY. 



Abbreviated, shortened, cut short. 



Abdomen, the belly. 



Aculeatefl, furnished with, or ending 

 in, prickles. 



Acuminated, ending in a sharp point, 

 sharp pointed. 



Aduate, adhering or growiiic to- 

 S^ether, adjoining. 



Alated, winged, applied to the ex- 

 panded lip of the Strombus genus, 

 &c. 



Ambitus, the circumference or out- 

 line of the valves. 



Annulated, formed or divided into dis- 

 tinct rings. 



Annulations, rings. 



Antiquated, longitudinally furrowed, 

 but interrupted by transverse fur- 

 rows, as if the shell had acquired 

 new growth at each furrow. 



Aperture, the mouth or opening of 

 the shell. 



Apex, the tip or point of the spire. 



Apophysis, an excrescence. 



Approximating, approaching near to, 

 or near together. 



Arcuated, bent in the form of an 

 arch. 



Arcuations, tendings, curvings. 



Area, the surface contained between 

 lines or boundaries. 



Arenose, sandy. 



Areola, a small area or circle. 



Articulations, junctures, or joinings. 



Ascititious, supplemental, additional. 



Attenuated, thin, slender. 



Aurated, eared, having ears as in the 

 scallops. 



Auricled, having appendages like 

 ears--. 



Auriform, ear-shaped. 



Barb, any thing that grows in place of 

 a beard. 



Base, in univalves, that part of the 



shell by which it is affixed to 



rocks, &c. and in multivalves the 



opposite extremity to the apex. In 



P 



univalves the opposite end to the 



apex. 

 Beak, the continuation of the body of 



univalves iu which the caual is 



situate. 

 Beard, the process by which some 



bivalves adhere to rocks, &:c. 

 Bellying, distended in the middle. 

 Bi, prefixed to any word, signifies 



two. 

 Biangnlated, having two corners or 



angles. 

 Bicuspid, having two points. 

 Bidentate, having two teeth. 

 Bifid, opening w.th a cleft. 

 Bifarious, parting in opposite direc- 

 tions. 

 Bilabiate, furnished both with an outer 



and inner lip. 

 Bilobate, divided into two lobes. 

 Bimarginate, furnished with a double 



margin as far as the lip. 

 Biradiate, having two rays. 

 Bivalve, consisting of two valves or 



divisions. 

 Blotched, spotted in an irregular way. 

 Blunt, obtuse, opposed to acute. 

 Borer, a piercer. 

 Brinded, streaked. 

 Bulging, gibbous, swollen out. 

 Bullate, of a blistered appearance. 

 Byssus, a beard, common in the My- 



tilusand Pinna. 



Calcareous, relating to lime, of a limy 

 nature. 



Callosity, a protuberance. 



Callus, is composed of two sliort ribs, 

 united at the base, and convergini,' 

 at the apex towards the hinder part 

 of the shell. 



Campanulate, bell-^haped. 



Canaliculated, made like a pipe or 

 gutter. 



Cancellated, longittidinally and trans- 

 versely ribbed. 



Carinate, having a longitudinal pro- 

 minence like the keel of a vessel. 



Carinated, keeled. 



Cartilage, a flexible fibrous substance 



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