MUSEUM OF COMPARATIVE ZOOLOGY. 149 
color is pale yellow. In the youngest stages each pigment spot is double, 
formed of two clusters of pigment grains of unequal size. 
Plate II. fig. 2, in Forbes's work, illustrates a young specimen of this species. 
Figs. 3 b, 3 c, of the same plate, exhibit very well the arrangement of the pig- 
ment spots of the tentacles in two series. In Plate III. fig. 2, I have given 
for comparison a younger stage of this genus, with eight long tentacles. The 
bell is not relatively as high as in Forbes's figure of the same, and the four pro- 
longations of the bell cavity into the apical projection of the bell are more 
pointed and deeper than he has represented. 
Development from the egg is unknown. 
Locality, Newport, R. I. 
Turris episcopalis seldom comes to the surface of the water, in the glass vessel 
in which it is confined, and may be a deep-sea medusa. It seems to be very 
near the medusa which Claus described as Oceania pileata (Zeit. f. Wiss. Zool., 
3d. XIV., Stud. über Polypen und Quallen der Adria, Taf. XIII. figs. 46, 47). 
Modeeria multitentacula, n. s. 
Plate IIL. Figs. 7, 8, 9. 
A jelly-fish found by Mr, Agassiz, in 1865, resembles closely the genus 
Modeeria, Forbes, as he has pointed out in manuscript notes from which this 
description was made. It differs from M. formosa in the following particulars. 
Its bell is of uniform thickness, while in M. formosa the apex is much thicker 
than the walls, The chymiferous tubes of M. multitentacula are broad and 
well defined, while in M. formosa they are fine and thread-like, "The pedun- 
cle upon which the stomach and ovaries are borne is much more developed 
than in M. formosa. The tentacles are more numerous in M. multitentacula 
than in M. formosa, and the pigment spots of the tentacular bulbs are found on 
their under surfaces at a short distance from the union of tentacles and bell 
margin. The medusa resembles the genus Callitiara, Haeck. M. formosa has 
undeveloped ovaries, and may be the young of a form more like M. multiten- 
tacula. 
The bell of M. multitentacula is high, almost a prolate spheroid in form, 
with one pole truncated to form the bell opening. The diameter near the bell 
margin is slightly greater than that just above this point. It decreases very 
gradually towards the apex, where it is only a trifle less than at the bell margin. 
The bell walls are thin throughout, and without apical prolongation or thick- 
ening. Chymiferous tubes simple, with smooth profile, and of medium width. 
They enlarge slightly before their junction with their tentacles, and are four in 
number. In the upper part of their course they arch over on to the pedun- 
cle, and extend down the sides of the proboscis to their opening into the stom- 
ach. Bell transparent, and with smooth surface. 
The proboscis is large, with a peduncle, which fills a large part of the upper 
portion of the bell cavity, and extends downward almost to the bell opening. 
