52 DEVELOPMENT OF LYMPHATIC SYSTEM, FISHES 



onl}^ on one side of the body, while the lateral pharyngeal lym- 

 phatic of the opposite side of the same embryo injected to the 

 caudal end of the otocyst in one case, to the middle of the otocyst 

 in two cases and as far forward as the eye in the other; in three 

 embryos the lateral pharyngeal lymphatic could be injected as 

 far forward as the eye on one side of the body, while the lateral 

 pharyngeal lymphatic of the opposite side injected to the middle 

 of the otocyst in one of these embryos and to the caudal end of 

 the otocyst in the remaining two; in five embryos the lateral 

 pharyngeal lymphatic could be injected only to the caudal end 

 of the otocyst on both sides of the body; in one embryo the 

 lateral pharyngeal lymphatic could be injected as far forward as 

 the anterior end of the otocyst on both sides of the body; in one 

 embryo the lateral pharyngeal lymphatic could be injected to the 

 caudal end of the otocyst on one side of the body and to the 

 middle of the otocyst on the other; in two embryos the lateral 

 pharyngeal lymphatic could be injected to the anterior end of 

 the otocyst on one side of the body and, only to the caudal end 

 of the otocyst on the other; in two embryos only a small cardino- 

 Cuvierian lymph sac could be injected on one side of the body, 

 while the lateral pharyngeal lymphatic of the opposite side in- 

 jected to the caudal end of the otocyst in one of these embryos, 

 and to the anterior end of the otocyst in the remaining two. 



On the twentieth day the following observations were made upon 

 twelve {12) embryos: 



In three embryos the subocular lymph sacs could be injected 

 through the lateral pharyngeal lymphatic on both sides of the 

 embryo; in two embryos the subocular lymph sac could be in- 

 jected through the lateral pharyngeal lymphatic on one side of the 

 embryo (fig. 15), while the lateral pharyngeal lymphatic of the 

 opposite side injected up to the subocular sac but did not com- 

 municate with it; in one embryo the subocular lymph sac could 

 be injected through the lateral pharyngeal lymphatic on one side 

 of the body, while the lateral pharyngeal lymphatic of the oppo- 

 site side injected only to the caudal end of the otocyst; in two 

 embryos the subocular lymph sacs could be injected through 

 the lateral pharyngeal lymphatic on one side of the body, while 



