I 9 8 



GLOSSARY. 



pal-you-dynid-ee, a 

 family of freshwater molluscs. 

 PALUSTRIS, pal-uss-triss, living in 



boggy places. 



PARASITE, parrah-site, an animal or 

 plant which attaches itself to 

 another. 



PARASiTic,parrah-sittik, existing on 

 or inhabiting some other body. 



PAUCISPIRAL, paw-se-spiral, having 

 only a few whorls ; with a short 

 spire. 



PECTI N ATED, pektin-ate-ed, toothed 

 like a comb. 



PECTINIBRANCHIATA, pek-tinny- 

 branky-ate-ah, an Order of mol- 

 luscs, so named because their 

 gills are pectinated, or comb-like. 



PEDICLE, ped-ikkle, a short foot- 

 stalk. 



PELLUCIDA, pel-lewsid-ah, trans- 

 parent. 



PENULTIMATE, pe - nulty - mate, 

 almost the last ; the last but one. 



PEREGRA, perry-grah, a traveller. 



PERIPHERY, per-iffery, the circum- 

 ference or outer line of a circle ; 

 in spiral shells the centre or 

 widest part of the last, or body- 

 whorl. 



PERISTOME, perry-stome, the mar- 

 gin of the mouth or aperture of 

 univalve shells. 



PERVERSA, per-verse-ah, turned or 

 twisted the wrong way. 



PHYSA, fy-sah, a bladder. 



PICTA, pik-tah, painted. 



PICTORUM, pik-tow-rum, belonging 

 to painters. 



PISANA, pi-sane-ah, belonging to 

 Pisa, a town in Italy. 



PISIDIOIDES, Pi-siddy-oi-dees, re- 

 sembling Pisidium. 



PISIDIUM, Pi - siddy um, pea- 

 shaped. 



PLANORBIS, plan-orbiss, a flat coil. 



PLICATE, pli-kate, | f ld ^ 



PLICATED, pli-kate-ed, / I0 



POMATIA, po-maysheah, having an 

 operculum. 



POLYMORPHA, polly-mor-fah, many- 

 shaped. 



POSTERIOR, pos - teery - or, the 

 hinder part ; in bivalve shells the 

 side opposite to that on which 

 the ligament is placed. 



PROCESS, pross-ess, progressive 

 change, as process of time, fer- 

 mentation, decomposition, &c. 

 The word is also applied to any 

 part (of an animal, or other body) 

 for which there is no particular 

 name. For example, the oper- 

 culum of the Neritidce is provided 

 with " a projection or plate-like 

 appendage " (see p. 22) ; in this 

 case the word /raw* might have 

 been used instead of appendage. 



PROTUBERANCE, pro-tewberance, 

 a projection, a swelling. 



PULCHELLA, pul-kella, beautiful, 

 the ul pronounced as in pulse. 



PULMONOBRANCHIATA, pulmonno- 



branky-ate-ah, an Order of mol- 

 luscs, so named because their 

 gills resemble lungs. 



PUPA, pew-pah, a doll or puppet ; 

 applied to the chrysalis of insects 

 and a genus of land shells. See 

 p. 150. 



PURUS, pew-russ, clear. 



PUSILLUM, pew-sill-um, \ ...., 



PUSILLA, pew-sill-ah, / llttle ' 



PUTRIS, pew-triss, living among 

 decayed matter. 



PYGM^EA, pig-me-ah, dwarf, tiny. 



PYRAMIDAL, pirr-ammy-dal, re- 

 sembling a pyramid. 



PYRAMIDALIS, py-rammy-day-lis r 

 in the form of a pyramid. 



PYRiFORM,pirry-form, pear-shaped. 



Q. 



QUADRILATERAL, kwodril-latteral, 

 having four sides. 



R. 



RADIATA, ray-de-ate-ah, rayed. 

 RADIATE, ray-de-ate, to send out 

 rays. 



