[RSL] subs. m. ETYM καλὸν στόμα. [FREQ minima 2indicia 0,12/d.c.m.] ¶ Histri ostiorum unum — la boca del Danubio llamada Calonstoma [HYPER NOMEN ostiumb REL FLUUIUS Danubius] 350 Sol 14.1. Septem ostiis Pontum influit: quorum ... tertium Calonstoma. 390 Amm 22.8.58. amnis Danubius septem ostiis ... erumpit in mare; quorum ... tertium Calonstoma.