234 bullp:tin of the 



not in four groups,* from the stomach cavity. Sexual glands are situated or- 

 dinarily as described, but often have a bright pink color instead of white. 



Otocysts large, compound, as already described in Halopsis by A. Agassiz. 

 This medusa is very abundant at Eastport, Me., as well as at Grand Manan,f 

 where it seems to occur during the whole summer. No subject would better 

 repay investigation than that of the histology of the " compound eyes." or 

 otocysts, of Halopsis. 



Oceania languida (Ag.)4 A. Ag. 



An Oceania similar to 0. languida was found in abundance near Eastport, 

 Me. A few specimens occurred at North Head, Grand Manan. 



Obelia, sp. ? 

 An unidentified Obelia is common at Grand Manan. 



DISCOPHORA. 

 Cyanea arctica. Per. et Les. 



Nowhere on the Atlantic coast, except at Eastport, Me., have I seen such 

 magnificent specimens of this medusa as near the landing-place at North 

 Head, Grand Manan. 



Aurelia flavidula, Per. et Les. 



The Aurelia aurita described by Stimpson from Grand manan is evidently, 

 as already pointed out by A. Agassiz, the A. fiavidula, Per. et Les. Speci- 

 mens were found at North Head in considerable numbers, and of great size. 



Callinema, Verrill, 



Plate VI. 



Since its discovery at Eastport by Prof. A. E. Verrill, the interesting genus 

 Callinema has not been studied, although Eastport has been repeatedly visited 



• In this respect ray specimens differ from tlie type. 



t This is thought to be the first mention of Halopsis from localities north of 

 Massachusetts Bay, on the New England or New Brunswick coasts. 



X Name languida used by L. Agassiz in 1862 in " Contributions to the Natural 

 History of the United States." A special description of 0. languida, with figures, 

 is to be found in " North American Acalepha;," by A. Agassiz. The specimens 

 studied closely resemble the types. 



