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. 



PRODUCED. 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 gasteropods (page 55). 

 PTERO'PODA. From the Greek, 



pteron, a wing, and pous, 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. 

 PYROSO'MA. In the plural pyrosomtB. 



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. 

 RECCJ'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'PLICATED. 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 when the hymen is re- 



moved. 

 ROS'TRUM. The beak. The exten- 



sion of that part of the shell in 



which the canal is situated. 

 ' ROTO'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, scaber, 



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. 



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'TION. A series of 



