134 GLOSSARY. 



Squa'mo-zygoma'tic (L. squama, a scale ; Gr. zugtiumi, I yoke 

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



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

 sisting of a stalk or filament, and an anther containing 

 pollen. 



Stape'dius (L. stapes, 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 after 

 death. 



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

 to the gemmule produced in the agamogenetic development 

 of some Polyzoa. 



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



Steganophthal'mata (Gr. stegdnos, roofed, covered ; ophthalmos, 

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

 are 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. 



Stel'lulae (L. little stars). Small veins, having a stellate arrange- 

 ment, in the kidney. 



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

 thorax (also named rectus sternalis\ which is occasionally 

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



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



