134 GLOSSARY. 



Squa'mo zygoma tic (L. st/i/Jma, a scale ; Gr. zugnntin\ I yoke 

 together). A centre of ossification in the ftetal skull. 



Sta'men (L. a thread). The male clement of a flower, con- 

 sisting of a stalk or filament, and an anther containing 

 pollen. 



Stape'dius (L. stages, a stirrup). A muscle connected with the 

 stapes (stirrup-bone) of the ear. 



Sta'pes (L. a stirrup). The small bone of the auditory ossicles 

 which fits into the fenestra ovalis of the ear. 



Sta'sis (Gr. istemi, to set in a place or settle). A settling in 

 one place, as the blood settles in particular situations alter 

 death. 



Sta'toblast (Gr. states, resting; blastos, a germ). A name given 

 to thegemmule produced in the agamogenetic development 

 of some Polyzoa. 



Ste'arin (Gr. stear, tallow). One of the neutral fats. 



Steganophthal'mata (Gr. steganos, roofed, covered ; ophthalnws, 

 an eye). A group of the Discophora in which the lithocysts 

 arc covered by hood-like processes of the umbrella. 



Stellate (L. stella, a star). Star-like ; applied to a large nerve 

 ganglion in the Dibranchiate Cephalopoda. 



Stellate (L. little stars). Small veins, having a stellate arrange- 

 ment, in the kidney. 



Sterna'lis brato'rum (L. sternal of the brutes). A muscle of the 

 thorax (also named rectus sterna/is), which is occasionally 

 present in man, but is constant in some lower animals. 



Ster'no-clei'do-mas'toid 1 (Gr. sternon, the breast ; kids, the 



Ster'no-mas'toid J clavicle ; mastos, a nipple ; eidos, 



shape). One of the muscles of the neck, passing from the 

 sternum and clavicle to the mastoid process of the tem- 

 poral bone. 



Ster'no-facia'les. Two broad muscles which, in the hedgehog, 

 arise from the sternum, and are inserted in the sides of the 

 lower jaw, and the integument of the face and ears. 



Ster'no-glos'si (Gr. sternon, the breast ; glossa, the tongue). 

 The name given to the long muscles which, in the ant- 

 eaters, are attached to the sternum and to the tongue. 



Ster'no-hy'oid. A muscle passing from the sternum to the 



hyoid bone. 

 Ster'no-thy'roid. A muscle passing from the sternum to the 



thyroid cartilage. 



Ster'num (Gr. sternon, the breast). The breast-bone in man, 

 and its representative in the other Vcrtebrata. 



