138 GLOSSARY. 



Substan'tise perfora'tse (L. perforated substances). The tracts 



of the brain which connect the olfactory lobes with the 



uncinate gyri. 

 Suc'cus entS'ricus (L. intestinal juice). The secretion poured 



out by the glands of the mucous membrane of the small 



intestine. 

 Suchospondy'lia (Gr. suchnos, long; spondulos, a vertebra). 



Applied to those Reptilia which have dorsal vertebrae with 



elongated and divided transverse processes. 

 Sudoriferous ") (L. sudor, sweat ; paro, I prepare ; fero, I bear). 

 Sudori'parous ) The name applied to the sweat glands 



of the skin. 

 Su'idae (L. sus, suis, a sow, hogX A family of the Non-Rumi- 



nantia which embraces the hogs. 

 Sul'cus (L. a furrow). The name given to the depressions 



which separate the convolutions of the brain ; also to 



similar furrows in bone and other tissues, as the sulcus 



frontalis of the frontal bone. 



Sul'cus auri'culo-ventri'cular. A deep transverse groove which 



divides the heart into auricular and ventricular portions. 

 Superciliary ridge (L. super, above ; tilium, an eyelash). A 



curved elevation in the frontal bone above the margin of 



the orbit. 

 Supina'tion (L. sup^nus, lying on the back). The act of 



turning the hands palm upwards. 

 Supina'tor brevis (L. short supinator). One of the muscles of 



the antebrachium. 

 Supina'tor lon'gus (L. long supinator). One of the muscles of 



the brachium passing from the humerus to the radius. 

 Su'pra-acro'mial (L. supra, above ; Gr. akron, a summit ; omos, 



a shoulder). The name given to an artery and to a nerve 



lying above the acromion of the scapula. 

 Su'pra-an'gular (L. supra, above). A bone of the mandible 



above the angular in some Vertebrata, 

 Su'pra-bran'chial (L. supra, above; Gr. branchia, a gill). 



Applied to the dorsal division of the pallial chamber in the 



Lamellibranchiata, it being above the gills, which separate 



it from the infra-branchial chamber. 

 Supracrliary lobe (L. supra, above ; cilium, an eyelash). The 



outer angles of the rostrum in the Brachyura. 

 Supracla'vicle (L. supra, above ; davicula, the collar-bone). 



A bone developed in some fishes at the dorsal end of the 



clavicle. 



