GLOSSARY 317 



Papilla (pi. papillae) : a small nipple-like process, as the papillae of the 

 skin or tongue. 



Parasite: 93. 



Parthenogenesis: 35. 



Pelag'ic: inhabiting the surface of mid-ocean. 160. 



Pharynx: 42. 



Physiology: 39. 



Plat yrrhine : broad-nosed ; said of the New- World monkeys. 



Flu teus : 59. 



Polyg'amous : said of animals in which a single male mates with sev- 

 eral females : 35. 



F51ymor phism : 24. 



PSlyp: 21. 



Post-embryonic: 49 



PraecS cial (pre-co'-shal) : 79. 



Predatory: feeding on other animals. 



Propolis: 84. 



Protective resemblance : 107. 



Pro toplasm : 2. 



PrSventric ulus : 42. 



Pseu dopod : 4. 



Fsy'chic : 140. 



Pupa: 57. 



Reason: 139. 



Recognition mark: 77, 115. 



Rectum: 42. 



Reflex action : 127. 



Reproduction : 67. 



Respiration: 4. 



Retic ulum : 42. 



Retina: 123. 



Ru men : 42. 



Ru minant : 42. 



Saliva: 42. 



Sensation : 67. 



Sensoiium : 126. 



Silica : the mineral of which quartz, sand, flint, etc., are composed. 



Spawn, v. : to lay eggs. 



Specialization: 41. 



Species : 151. 



