GLOSSARY. 



393 



Be'Veesed'. Api)lied to spiral univalves, iu which the direction of the splra' 

 is the reverse of the uonual — i. e., sinistral. 



Rhi-zoph'a-ga (Gr. rJiiza^ root ; pliaijo, 1 eat). A group of the Marsupials. 



Rbi-zop'o-da iGr. ?-7M'za, a root ; and ;w«s, foot)! The division of /"ro^'^oa 

 comprising all those which are capable of emilting- pseudopodia. 



Rhyn'oho-lites (Gr. rhuqclios^ beak; and lithos, stone). Beak-shaped ibs- 

 sils, consisting of the mandibles of Cephalopoda. 



Ro-den'ti-a (Lat. rodo, I gnaw). An order of the Slammals; often called 

 (rlires (Lat. giis^ a dormouse). 



Ros'teum (Lat. rostrum, beak). The "beak'' or suctorial organ formed by 

 the appendages of the mouth iu certain insects. 



Ro-TA-To Ei-A ( = Eotifera). 



iio-Tir'E-EA (Lat. rota, wheel ; and fero, I carry\ A class of the Scohcida 

 (Annuloida) characterized by a ciliated " trochal disc." 



Eu-Go'sA (Lat. rur/osus, wrinkled;. An extinct order of Corals. 



Eu'iiEN ( Lat. for the throat). The first cavity of the comfjle.x stomach of Ru- 

 minants; often called the "paunch." 



Ed-mi-nan 'ti-a (Lat. ruminor, I cliew the cud). The group of Hoofed Quad- 

 rupeds ^ Ungulala) which " ruminate " or ehcw the cud. 



Sa'oeom. ^ The vertebrse (usually nnchylosed) which unite with the haunch- 

 bones [ilia) to form the pelvis. 



Sand-ca-nal (= Stone-ca-nal). Tlie tube by which water is conveyed from 

 the exterior to the ambulaeral system of the Echinodcrmata. 



Sae'code (Gr. sara, flesh; ^V/os, 'form). The jelly-like substance of which 

 the bodies of Protozoa are composed. It is an allDuniinous body containing 

 oil-granules, and is sometimes called " animal protoplasm." 



Sak'ooids (Gr. sarx ; and eidos, form). The separate amosbiform particles 

 which in the aggregate uuxke up the "flesli" of a Sponge. 



Sab'ei-a (Gr. saura, a lizard). Any lizard-like Eeptile is often spoken of ra 

 a " Saurian : " but the term is sometimes restricted to the Crocodiles alone, 

 or to the Crocodiles and Lacertilians. 



S au-eo-ba-tea'chi-a ( Gr. sawra / hatrachos^^xog). Sometimes applied to the 

 order of the tailed Amphibians ( JJrodda). 



Sau-kop'si-da (Gr. saura ; and apsis, appearance). The name given by Hux- 

 ley to the two classes of the Birds and Eeptiles collectively. 



Sau-eop-tee-tg'i-a (Gr. saiira ;' ixnd pterux, wing). An extiiict order of Eep- 

 tiles, called by Huxley Plesiosauria, from the typical genus Fu'Siosaw^us. 



Sau-eit'eji; (Gr. saura ; and oura, tail). The e-xtinct order of Birds compris- 

 ing only the Archceopteryx. 



Scan-so'ees (Lat. scando, I climb). The order of the Climbing Birds (Par- 

 rots, Woodpeckers, etc.). 



Sca-phog'na-tuite (Gr. skaphos, boat ; and qnatltos, jaw). The boat-shaped 

 appendage (epipodite) of the second pair of maxilte in the Lobster ; the 

 function of which is to spoon out the water from the branchial chamber. 



SoAp'u-LA (Lat. for shoulder-blade). The shoulder-blade of the pectoral arch 

 of Vertebrates | in a restricted sense, the row of plates in the cup of Cri- 

 noids, which give origin to the arms, and are usually called the "axillary 

 radials." 



Sole-een'ohy-ila (Gr. skkros, hard ; and efjeliuma, tissue). The calcareous 

 tissue of which a coral is composed. 



Scie'eites (Gr. skUros). The calcareous spicules which are scattered in the 

 soft tissues of certain Actiriozoa. 



Sclee-o-da'sio (Gr. skleros, hard; basis, pedestal). The eoral which is pro> 

 duced by the outer surface of the integument in certain Actinozoa. {e. g., 

 Bed Coral), and forms a solid axis which is invested by the soft parts of the 

 animal. It is called " foot-secretion" by Mr. Dana. 



Soler-o-dee'mio (Gr. skleros; and di-rma, s'km). Applied to the corallum 

 which is deposited within the tissues of certain Attinozoa, and is called 

 " tissue-secretion " by Mr. Dana. 



Sole-eot'io (Gr. skleros, hard). The outer dense fibrous coat olthe eye. 



