176 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
We found a specimen of this Medusa in Suva Harbor, November 14, 1897. 
And we also came upon a small swarm of them at Komo Island on November 
27, 1897. 
On January 3, 1898, we observed an individual of this species resting upon 
the muddy bottom of Suva Harbor. The aboral surface of the umbrella was 
pressed against the bottom, while the mouth arms and oral surface were 
uppermost. In this position it remained quiescent'for more than an hour, 
merely waving its mouth arms in a slow, sweeping manner. Indeed, its ap- 
pearance reminded one far more of an Actinian than of a Medusa. It is inter- 
esting to observe that the common Cassiopea frondosa of the West Indies, and 
also Cassiopea Mertensii, Brandt, of the Caroline Islands possess similar habits. 
The number of marginal sense organs in this species is certainly quite vari- 
able, and is greater than has as yet been observed in any other species of the 
genus Cassiopea. We prefer, however, on account of its close resemblance in 
all other respects, to place it in the genus Cassiopea. 
III. CTENOPHORAL. 
Eucharis grandiformis, nov. sp. 
Plate 15, Figs. 47, 48. 
The body of this Ctenophore is 135 mm. in length, and our figures represent 
the natural size of the animal. The lappets in this species are by no means so 
wide and voluminous‘as in the Mediterranean Eucharis multicornis,! Esch- 
scholtz. The whole outer surface of the body and lappets is covered with | 
numerous long papilla. The auricles are long, and are often carried coiled in 
a close helix (see Fig. 48). A pair of long unbranched tentacles arise from 
either side of the body near the region of the mouth. The ciliated plates are 
very numerous and close together, and are arranged in 8 rows. The oral sense 
organ is situated at the bottom of a deep cleft. The windings of the canal sys- 
tem through the lappets are far less complex than is the case in E. multicornis. 
The ciliated plates, gastric cavity, and chymiferous tubes are cinnamon-yellow 
in color. All other parts of the animal are hyaline. This Ctenophore is ex- 
tremely delicate in structure, the least touch being sufficient to tear the tissues 
of the animal. 
We found them in considerable numbers, floating near the surface, in Suva 
Harbor, early in the mornings of December when the water was perfectly 
calm, The least ripple caused them to sink to an unknown depth. 
1 Compare our figures with those of E. multicornis by Chun, C., 1880, Fauna 
und Flora des Golfe von Nezpel, I. Monographie, p. 296, Taf. V. Figs. 1-3. 
