204 THE EMBRYOLOGY OF THE HONEY BEE 



PhyGng, pharyngeal ganglia. 



PMR, posterior rudiment of mid-intestine. 



PP, polar protoplasm. 



Pro, Proc, proctodaeum. 



ProL, procephalic lobes. 



PriSw, primitive swellings. 



PTraL, posterior tracheal loop. 



RAp, apodeme of flexor (adductor) muscle of mandible. 



RMcl, flexor (adductor) muscle of mandible. 



SlkD, common duct of silk glands. 



SlkDo, opening of duct of silk glands. 



SlkGl, silk gland. 



SoeCom, suboesophageal commissure. 



SoeGl, suboesophageal ganglion. 



Sp, spiracle. 



SpBr, spiracular branch. 



StgNv, stomatogastric nerve. 



StgR, rudiment of stomatogastric nervous system. 



Sto, Stom, stomadeum. 



SupCom, supraoesophageal commissure. 



Tae, taenidia. 



Ten, central body of tentorium. 



iTen, 2Tcn, anterior and posterior arms of tentorium. 



Tra, trachea. 



TraBr, tracheal branch. 



TraCom, tracheal commissure. 



Tralnv, tracheal invagination. 



TraTr, tracheal trunk. 



VDph, ventral diaphragm. 



VLMcl, ventral longitudinal muscles. 



VNC, ventral nerve cord. 



x, posterior tier of cells of optic ganglion. 



Y, yolk. 



YC, yolk cells. 



y, subspherical group of cells in lateral region of deutocerebrum. 



