392 GLOSSARY. 



Pseu-do-h^'mal (Gr. pseudes^ false ; and haima., blood). Applied to the 

 vascular system of Annelida. 



Pseu'do-hearts. Certain contractile cavities connected with the atrial sys- 

 tem oi Bracldopoda^ and long considered to be hearts. 



Psel'-do-nav-I'CEl'l-e [Gr. pseudes, false ; andiVai'm//a, a jp-enus of Diatoms). 

 The embryonic forms of the Gregui'lnidix^ so called from tljeir resemblancij 

 in shape to the Naviciila. 



Pseu-do-po'di-a (Gr. pstndes ; and ^w?^f, foot). The extL^nsions of the body- 

 substance which are put forth by the lihlzopoda at A\'ill, and which serve 

 for locomotion and prehension. 



PsEU-Do'vA (Gr. pseudes ; (Lat. ovum^ ^'-W^- ^^^^ egg-like bodies from which 

 tlie young of the viviparous Apliis are produced. 



Pteii-op'o-da (Gr. pteron^ wing; and jjovs^ foot). A class of the Molliisca 

 which swim by means of tins attached near the head. 



Ptek-o-sau'ei-a \Qt\\ pteroi^ wing ; saura, lizard). An extinct order of Hep- 

 tiies. 



Pu'eis (Lat. _^?iie'^, hair). The share-bone; one of the bones whlc'h enter 

 into the composition of the pelvic arch of Vertebrates. 



PuL-MO-GAs-TER-op'o-DA (= Pulmonifcra). 



Pul-mo-na'ri-a. A division of Arachnida which breathe hy ineans of pulmo- 

 nary sacs. 



Pul'iMO-na-ry. 



J'ul'mo-nate. Possessing lungs. 



Pul-mo-nif'e-ra (Lat. pulmo^ a lung; and/ero, I carry). The division of 

 Mollusca which breathe by means of a pulmonary chaniber. 



Pu'pA (Lat. for a doll ). The stage of an insect nnmediately preceding its ap- 

 pearance in a perfect condition. In the pupa-stage it is usually quiescent — 

 when it is often called a " chrysalis ; " but it is sometimes active— when it 

 is often called a '■'■ nymph." 



Py-lo'rus (Gr. puloros^ a gatekeeper}. The valvular aperture between the 

 stomach and the intestines. 



Pyr'i-form (Lat. pii'uiii ox pyriim^ a pear ; and forma^ form). Pear-shaped. 



Quad-rf-ma'na (Lut. qvatao)\ four; mfuiu.'i^ hand). The order of Mammals 



comprising the A}>es, Monkeys, Baboons, Lemurs, etc. 

 Quad-ru-ma'nous. 



Ea-dt-a'ta (T^at. rudiaa^ a ray). Formerly applied to a large number of ani- 

 mals which are now placed in separate sub-kingdoms {e. g.^ the C'(xleiiterata, 

 the Echinodennata ., the Infusoria., etc.). 



Ka-di-o-la'ri-a (Iiat. radius., a ray). A division of Protozoa. 



Ka'di-us (Lat. for a spoke or ray). The innermost of the two bones of the fore- 

 arm of the higher Vertebrates. It carries the thumb, when present, and 

 corresponds with the tibia of the hind-limb. 



Ea'mus (Lat. for a branch). Ap}died to each half or branch of the lower jaw 

 or mandible of Vertebrates. 



Kap-to'res (Lat. rapio, I I'lunder). The order of the birds of Prey. 



Eap-to'ri-al. 



Ea-8o'res (Lat. rado., I scratch). The order of the Scratching Birds (Fowls, 

 Pigeons, etc. ). 



Ea-ti't^e (Lat. ratis, a raft). Applied hy Huxley to the Cursorial Biids, which 

 do not ily, and have therefore a raft-like sternum without any median keel. 



Peo'tum (Lat. rectus., straight). The terminal portion of the intesiinal canal, 

 opening at the surface of the body at the anus, 



Eep-til'i-a (Lat. repo.l crawl). The class of the Vertebi'aia comprising the 

 Tortoises, Snakes, Lizards, Crocodiles, etc. 



Re-tic-u-la iu-a (Lat. reticulum., a net). Employed by Dr. Carpenter to desicr- 

 nate those Protozoa., such as the Foraminifera., in which tlie pseudopodTa 

 run into one another and form a network. 



Ke-tio'u-lum (Lat. for a net). The second division of the complex stomach 

 of Eaminants, often called the '^ honey-comb bag." 



