MEDUSAE. 145 



Bougainvillia fulva Agassiz and Mayer. 



Bougainvillia fulva Agassiz and Mater, 1899 ; Bull. Mus. Comp. Zool., Vol. XXXII., 

 p. 162, PI. 2, Fig. 6. 



Plate 2, fig. 8. 



An immature individual of this species was found by us among the Fiji 

 Islands in 1898, and a mature specimen was obtained off Funafuti Atoll, 

 Ellice Islands, on December 22, 1899. 



The bell is about 6 mm. in height and the sides are straight and verti- 

 cal. The gelatinous substance is of uniform thickness everywhere. There 

 are four bunches, each containing seven tentacles, which arise from the bases 

 of the four radial canals. These tentacles are solid and their entodermal 

 cells are chordate. A single dark-colored ocellus is situated upon the under 

 or centripetal side of each tentacle near the basal bulb. The velum is 

 narrow. There are four straight, narrow, radial canals and a slender circular 

 vessel. The proboscis is quadratic, and its base is wide. It extends about 

 one-third of the distance from the inner apex of the bell-cavity to the velar 

 opening. Four oral tentacles, each of which branches dichotomously four 

 times, arise from the four radial corners of the proboscis near the mouth. 

 The mouth is a simple round opening. The gonads are situated in the 

 proboscis. The entoderm of the proboscis and tentacle bulbs is rosin-yellow. 

 The tentacles are of a translucent milky color, and the bell is transparent. 

 A single specimen was obtained in an open net towed from a depth of 150 

 fathoms to the surface. 



(150 f — S)''; Station 195; December 22, 1899; S Lat. 10° 47', W. Long. 179° 30'. 



Epenthesis rangiroae, sp. nov. 



Plate 1, Jig. 4- 



The bell is slightly flatter than a hemisphere, and is 7 mm. in diameter. 

 The bell-walls are thin and flexible. There are sixteen well developed 

 tentacles with large conical basal bulbs. Sixteen otocysts, each containing 

 a single spherical otolith, alternate in position with the sixteen tentacles. 

 The velum is broad. There are four straight, slender, radial canals, and a 

 narrow circular vessel. The proboscis is very short and quadratic in cross- 



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