GLOSSARY. 135 



Stetho'meter (Gr. stethos, the breast ; metron, a measure). 



An instrument for recording the movements of the chest- 

 walls. 

 Stig'ma, pi. Stig'mata (Gr. stigme, a puncture). An opening 



leading into the respiratory tracheae of an insect; the part 



of the pistil of a flower to which the pollen is applied, and 



which leads to the ovary. 



Sti'pes (L. a log, post). A part of the maxilla in the Insecta. 

 Stipule (L. stipula, a stalk, straw). Little leaflets of a plant 



which are generally found in pairs at the point where an 



ordinary leaf joins the stem. 



Sto'mata (Gr. stoma, stomatos, a mouth, entrance). Openings 

 . in the epidermis of the leaves and other parts of plants by 



which air enters. Also applied to small openings in 



serous membranes. 

 Stomatogas'tric (Gr. stoma, stomatos, a mouth, an opening ; 



gaster, the stomach). A term applied to the nerves which 



supply the viscera in the Crustacea. 

 Stomato poda (Gr. stoma, stomatos, a mouth, entrance ; pous, 



podos, a foot). A group of the Crustacea. 

 Strepsip'tera (Gr. strepso, I twist, turn ; pteron, a wing). A 



group of the Insecta, parasitic upon bees. 

 Stri'a terminalis (L. terminal stripe). A narrow whitish band 



which runs along the inner border of each corpus striatum 



of the brain. 

 Stri'ae longitudinales (L. longitudinal stripes). Two white 



tracts in the corpus callosum of the brain. 

 Stri'ae medulla'res (L. medullary stripes). Several transverse 



white lines in the floor of the fourth ventricle of the brain. 

 Stri'ated (L. striare, to make stripes ; or stria, the fluting 



of a column). Striped; applied to voluntary muscular 



fibres. 



Stro'ma (Gr. stroma, a thing spread out for lying on). The 

 . groundwork of a tissue or organ in which the other parts 



are embedded. 

 Struthio'nidse (Gr. strouthos, an ostrich). A group of birds 



which comprises the Ostriches. 



Style (Gr. stulos, a pen, style). Applied to any stalk or style- 

 like body. The stalk interposed between the ovary and 



the stigma of a plant. 

 Sty'lo-glos'sus (Gr. glossa, a tongue). A muscle passing from 



the styloid process of the temporal bone to the side and 



under part of the tongue. 



