98 GLOSSARY. 



P. 



Pachycar'dia (Gr. pachus, thick, large ; kardia, the heart). A 

 primary group of the Vertebrata proposed by Haeckel to 

 comprise all the vertebrated animals but Amphioxus. 



Pa'lae angula'res (L. pala r a spade ; anguldris, having corners, 

 angular). A name given to a number of short plates 

 forming part of the mouth apparatus in the Ophiuridea. 



Palatine (L. palatum, the pallet). The name of a pair of 

 bones in the skull, also of certain holes (foramina) in those 

 bones ; also of certain arteries and veins supplying that 

 region ; also of one of the three main branches of the fifth 

 pair of cerebral nerves (Trigeminal). 



Palato-glos'sus (Gr. glossa, the tongue). A muscle passing 

 from the soft palate to the tongue. 



Palato-pharynge'us (Gr. plwrunx, the throat). A muscle 

 passing from the soft palate to the back of the pharynx. 



Pallium (L. a cloak, mantle). The covering which in the 

 Mollusca covers the exterior of the body, and, where a 

 shell is present, lines the shell. 



Pal'mse plica'ta (L. palnia, the palm of the hand ; plicdta, 

 folded). A term applied to the appearance of the mucous 

 lining of the vagina, caused by the two longitudinal ridges 

 and their radiating folds. 



Palma'ria (L. palmaris, a handbreadth or palm in length). 

 The bifurcations of the brachialia in the Crinoidea. 



Palma'ris lon'gus (L. long [muscle] of the palm). A muscle 

 proceeding from the inner condyle of the humerus to the 

 palm of the hand. 



Palmipe'des (L. palma, the palm of the hand ; pes, pedis^ a 

 foot). According to the old system of classification, an 

 order of birds which comprised the gulls, penguins, goose- 

 like birds, and the cormorants. 



Palmitin (L. palma, the palm tree). A neutral fat obtained 

 from palm oil. 



Pal'piger (L. palpo, I touch). A small piece articulated on 

 each outer edge of the labium in some Insecta. 



Pal'pus (L. palpo, I touch). An organ of touch connected 

 with the mouth apparatus of the Arthropoda. 



Paluli (L. diminutive of pdlus, a stake). A name given to 

 certain small pillar-like bodies found between the columella 

 and the septa in the Actinozoa. 



