CONCHOLOGY.— GLOSSARY. 



Ill 



Porcella'na. — Latin. Porcelain. 

 Porre'cted, — Projecting'. 

 Post-cesopha'geal, — Situate behind 



the oesophagus. 

 Pounce. — A powder to prevent ink 



from spreading after erasures. 

 Prehe'nsion. — The act of laying hold 



of and conveying the food to the 



mouth. 

 Probo'scis, — A trunk, a prolongation 



of the nose. 

 Produ'ced. — Lengthened out. 

 Psammo'bia. — From the Greek, psam- 



mos, sand. A genus of bivalves. 

 Ptero'cera. — From the Greek, 



pteron, wing, and keras, a horn. A 



genus of gasteropoda {puge 55). 

 Ptero'poda. — From the Greek, 



pteron, a wing, and pons, foot. 



Name of a class of mollusks {page 



67). 

 Punc'tuated. — From the Latin, punc- 



tum, a point. Having small hol- 

 lows like the punctures of a 



thimble. 

 Pu'lmonary. — Belonging or relating 



to the lungs. 

 Pulmone'a. — Latin. Pulmonary. 

 Pu'PA. — Latin. A puppet. A genus 



of snails. 

 Pur'pura. — Latin. Purple. A genus 



of the family of Buccinoides (page 



53). 

 Pylo'rus. — The right orifice of the 



stomach. 

 Py'riform. — Pear-shaped. 

 PvRoso'MA.-wJn the plural pyrosoin<B. 



From the Greek, pur, fire, and 



soma, body A genus of mollusks 



{page 92). 

 Quadra'ng ULAR. — Having four 



angles. 

 Qua'driplicated. — Having four 



plaits. 

 Radia'ta. — Latin. Name of a class 



of Zoophytes. 

 Ra'diate. — From the Latin, radius, a 



ray. Furnished with rays. 

 Re'ctum. — The terminating portion 



of the intestine. 

 Recu'rved. — Bowed back. 

 Refle'cted. — Bent backwards. 

 Refka'cted. — Abruptly bent, as if 



broken. 

 Re'niform. — Kidney -shaped. 

 Repa'nd. — With a serpentine margin. 



RE'PLiCATEn. — Folded so as to form a 

 groove or channel. 



Respira'tion. — The act or function of 

 breathing. 



Respi'ratory. — Relating to respira- 

 tion. 



Reti'culated. — Formed like a piece 

 of net- work. 



Retra'ctile. — Susceptible of being 

 drawn back. 



Retrofle'cted. — Bent backwards. 



Retrou'sse. — Backed up, turned up. 



Retrove'rted. — Turned back. 



Retu'se. — Ending in an obtuse sinus. 



Retun'dated. — Blunted or turned at 

 the edge. 



Re'volute. — Rolled backwards. 



Ri'ma. — The interstice between the 

 valves wlien the hymen is re- 

 moved. ' 



Ros'trum.— The beak. The exten- 

 sion of that part of the shell in 

 which the canal is situated. 



Rotu'nd. — Round, circular, spheri- 

 cal. 



Ru'fous. — Of a reddish colour. 



Ru'fus. — Latin. Reddish. 



Ru'gose. — Rugged, full of wrinkles. 



Sali'va. — The fluid secreted in the 

 mouth by the salivary glands. 



Sa'livary. — Relating to saliva. 



Sangui'nola'ria. — From the Latin, 

 sanguis, blood. Name of a genus 

 of acephalous mollusks. 



Sanguina'ceous. — Of a blood colour, 

 or resembling blood. 



Sca'brous. — From the Latin, scaher, 

 rough. Rough, harsh, rugged, or 

 like a file. 



Scala'ria. — From the Italian, scala, 

 a ladder, or series of stairs. Name 

 of a genus of gasteropods. 



Sca'lloped. — Indented at the edges. 



Sclero'tica. — From the Greek, skle. 

 ros, hard. One of the external 

 membranes of the eye-ball. 



ScoRBi'cuLATE. Pitted, having the 

 surface covered with hollows. 



Scu;tellated. ) sHieid.shaped. 



Sou TIFORM. \ '■ 



Scutibranchia'ta. — From the Latin, 

 scutum, a shield, and branchia, gills. 

 An order of gasteropods. 



Seam. — The line formed by the union 

 of the valves. 



Se'condary forma'tidn. — A ienes of 



