MEDUSAE. 159 



Aurelia vitiana Agassiz and Mayek. 



Aurelia vitiana Agassiz and Maykk, 1899; Bull. Mus. Comp. Zobl., Vol. XXXII., p. 171, 

 Plate 10, Fig. 85. 



This species was very abundant upon the surface during the afternoon 

 hours in Neiafu Harbor, Vavau Island, Tonga, on December 5 and 6, 1899. 

 None were to be seen in the morning. We found it also in Suva Harbor, 

 Fiji, in December, 1897 ; but here it appeared during the early morning 

 hours, and then only on perfectly calm days. It is interesting that although 

 it was very calm while we were in Neiafu Harbor, yet the medusa? did not 

 come to the surface in the morning, but swarmed there during the afternoon. 



SIPHONOPHORE!. 



Porpita pacifica Lesson. 



Porpita pacifica Lesson, R. P., 1830 ; Voy. de la " Coquille," Zool., Tom. 2, Zoophytes, PI. 7, 

 Figs. 3, 3'. 



This species is widely distributed over the tropical belt of the Pacific. 

 The general color of the pneumatocyst and pol_ypit.es is not so gray but 

 more yellowish than in Lesson's figure. 



S"; Station 7; September 1, 1899; N. Lat. 18° 19', W. Long. 134° 57'. 



S< ( ; " 13; " 5, " " 9° 57', " 137° 47'. 



S''; " 31; " 19, " S. Lat. 12° 20', " 144° 15'. 



S"; November 1 7, " off Bora Bora Island, Society Islands. 



S 1 '; December 25, " Lagoon of Funafuti Atoll, Ellice Islands. 



"Velella pacifica Eschscholtz. 



Velella pacifica Eschscholtz, F., 1829 ; Syst. der Acalephen. 



S d ; Station 14 ; September 7, 1899; N. Lat. 6° 41', W. Long. 137°. 

 S rf ; November 16, " Tahaa Island, Society Islands. 



