8 MUSEUM, BROOKLYN INSTITUTE OF ARTS AND SCIENCES. 
and without an aboral projection. It is about two-thirds as long as the height 
of the bell-cavity. The entoderm of the tentacle-bulbs and manubrium is 
robin-egg blue, while the ocelli are deep brown, almost black. All other 
parts are hyaline. This medusa is abundant in the Tongue of the Ocean in 
eTune and July, and was found at Turks Islands in January. 
Hybocodon Forbesii, Mayek. 
Fig. 13, Plate II. 
Mayer, A. G., 1894 ; Bull. Mns. Comp. Zool. at Harvard Coll. , Vol. XXV, p. 236, PI. 1, Fig. 1. 
Bell higher than a hemisphere. About 2 mm. high. Bell walls thin and 
transparent. Three rudimentary and one well developed tentacle; the lat- 
ter 2 mm. long with its distal end swollen, and studded thickly with nemato- 
cysts. Velum rudimentary. Entoderm of manubrium bright yellow. That 
of the distal end of the long tentacle yellow and red. Nassau Harbor, Baha 
mas. Spring months. 
Dissonema turrida, Mayer. 
Fig. 10, Plate II. 
Mayer, A. G., 1900 ; Bnll. Mub. Comp. Zool. at Harvard Coll., Vol. XXXVII, p. 44, PI. 2, Figs. 
3, 4. 
Bell pyriform, 4 mm. high, with a liollow apical projection. Two large, hol- 
low, tentacles, each about 12 mm. long. Fourteen short slender marginal cirri. 
Sixteen octodermal ocelli, one on the outer side of the base of each tentacle 
and cirrus. Manubrium urn-shaped, with four crenulated lips, which project 
beyond the velar opening. Four broad radial canals with four large sac-like 
gonads on their i)roximal halves. Ova large and prominent. Entoderm of 
manubrium and tentacles delicate green. Gonads and vascular canals deli- 
cate pink. Ocelli red. ('(»mm(ui througlumt summer at Bahamas, and off 
Florida coast. 
Halitiara formosa, Fewkes. 
Fig S, Plate I. 
Fewkes, J. W., 18R2; Bull. Muh. Comp. Zool. at Harvard Coll., Vol. IX, p. 27(5, PI. 4 
Fig. 2. 
Bell pyriform, 3 mm. liigli, wiMi solid apical projection. Four long 
radially situated tentacles, and 24-35 short tentacles with tapering bases. 
No ocelli, ^^'lulll well dcvclojx'd. I'oni- straight ruirrow radial tubes. Mann- 
