772 ZOOLOGICAL GLOSSARY 



PINNIPEDIA. A sub-order of carnivores, comprising the aquatic seals, sea-lions and walruses. 



PiPA AMERICANA. The Surinam toad: an anuran amphibian, 339 



Pjscicola. a genus of leech: annelid worm (Hirudinea). 



PiTBECiA. Saki: a genus of platyrrhine monkey (Cebidse). 



PiTHECvs. Langur, of India: a genus of catarrhine monkey, 607 



PLACODEBMS. An extinct class of fishes with an armour of bony plates, 234 



PLACOPHORA. A class of ancient, marine molluscs, comprising the chitons. 



Plagiosiomvm. a genus of marine flat -worm: turbellarian worm. 



PLANARIA. A group of elongated flat-worms: turbellarian worms (Tricladida). 



Planes. A genus of crab: decapod crustacean. 



PLATYHELMiNTHES. A phylum of unsegmonted flat-worms, comprising Turbellaria, Tre- 



matoda and Cestoda. 

 PLATYRRHiNES. The New World monkeys (Cebidse and Hapalidae). 

 PLECOPTERA. An Order of insects comprising the stone-flies, 218 

 Plecostomus. a genus of catfish: a South American fresh-water teleostean, related to the 



siluroids. 

 Plevrodeles. a genus of newt: urodelan amphibian. 

 Pleuronectes flesus. The flounder: a teleostean flat-fish. 

 P. PL AT ESS A. The plaice. 



Plexippus siNVATus. A jumping spider: an arachnid (Araneida, Salticidse), 212 

 Plusia oajuma. Gamma moth, a European noctuid moth: lepidopterous insect. 

 Podargvs. Frog-mouth: an Australian bird, related to goat -sucker. 

 Polycelis. a genus of turbellarian worm (Tricladida). 

 POLYCH^TES. A class of annelid worms comprising free-swimming types (Errantia) such as 



Nereis, and tubicolous types (Sedentaria) such as Branchio7)ima. 

 POLYCLADiDA. An Order of leaf-like Turbellaria, comprising such types as Leptoplana. 

 PoLTiPM's. A genus of deep-sea stomiatid teleostean fish. 

 PoLYODON. Spoonbill sturgeon of Mississippi: a chondrostean fish. 

 PoLYOPHTHALMUs. A gcuus of Sedentary marine polychsete worm. 



Polypedates (Rhacophorus) rei.svvardti. Javanese flying frog: an anuran amphibian. 

 Polyphemus. A genus of water-flea: branchiopod crustacean (Cladocera), 209 

 POLYPTERiNi. A group of African chondrostean fish with two extant genera. 

 PoLYPTERVs. The bichir: a chondrostean fish (Polypterini), 320 



POLYZOA (bryozoa). A phylum of aquatic, plant-like animals — sea-mats, corallines, 194 

 Pomolobus. Skip-jack: a genus of clupeid teleostean fish. 

 Poxao. The orang-utan: anthropoid ape. 

 Pontellopsis reoalis. a copepod crustacean. 

 Popillia. a Japanese beetle: coleopterous insect. 

 PoRicHTHYS. Toadfish, Californian stinging fish: a teleostean fish. 

 porifera. a phylum of multicellular, sedentary, aquatic animals — the sponges. 

 PoRTHEsiA. A genus of tussock moth: lepidopterous insect (Lymantrid). 

 PoRTuyvs. Swimming crab: a genus of decapod crustacean. 

 PoTAMiLLA. A genus of tubicolous polychsete worm. 

 PoTAMoGALE. Otter-shrcw: aquatic insectivore. 

 PoucHETiA. Dinofiagellate: a genus of flagellate Protozoa. 

 Pristis. Saw-fish: shark-like batoid selachian fish, 279 

 PROBOSCiDEA. An Order of mammals comprising the elephants, formerly included in the 



Ungulata. 

 Procavia. Rock hyrax or coney: a distant relative of the elephant (Hyracoidea). 

 P ROC ELL ARIA PELAGIC A. Storm petrel (Mother Carey's chickens): an oceanic bird (Pro- 



cellariidse), 420 

 Proctacasthus. Robber-fly: a genus of dipterous insect. 



Procyox. The raccoon of North America: a genus of Fissipedia (Procyonidae), 444 

 procyonidje. a family of carnivores, comprising the raccoon, panda, coati, etc. 

 Propithecus. Sifaka, a genus of Madagascar lemur: Primate (Lemuroidea). 

 PROSOBRANCHiA. A sub-class of gastrojiod molluscs comprising the aquatic limpet, whelk, 



periwinkle, etc. 

 Prosioma. a genus of fresh-water ribbon-worm: Nemertine. 



