114 ZOOLOGY OF THE FAR EAST. 
Asenathia, gen nov. 
I propose this new genus for the reception of a small medusa from creeks and 
estuaries in the neighbourhood of Port Canning in the Gangetic delta. It may be 
defined as follows : — 
Petasine medusae with numerous hollow tentacles not arranged in groups, with- 
out a manubrial peduncle, with free marginal lithocyst-clubs but without mar- 
ginal processes, wdth 4 radial and numerous centripetal canals, 4 sac-like gonads 
and 4 manubrial lips. 
Type-species. Asenathia piscatoris, sp. nov. 
The new genus appears, as already stated, to be closely related to Maeotias, 
Ostrooumoff, from the Azov estuaries, but to differ in its open sense-organs and in 
the absence of marginal processes. The original description of the unique species of 
Maeotias is, however, very brief and the figure published later, with a full description 
in Russian, imperfect. 
Figs. 3, ^.—Asenathia piscatoris, sp. nov. 
Fig. 3. — Type- specimen, x 5. Fig. 4. — An adult male specimen with half of the bell removed, x 5. 
m = manubrium, p — peduncle of gonad. / — testis, v = velum. The tentacles are not more shown in fig. 4. 
Asenathia piscatoris, sp. nov. 
The species consists, so far as we know at present, of small medusae remarkable 
for the opacity of their bell and for their conical or half egg-shaped form. In the 
largest specimen examined (a mature male) the height of the bell is 13 mm. and the 
transverse diameter at the base 1-3 mm., but it seems to be in a contracted condi- 
tion, and the other two examples as yet captured are much more elongate and dis- 
tinctly narrower than high. These two specimens, one of which is figured, are smaller 
than the first and their gonads are not quite ripe. The jelly of the bell is rather thin. 
The velum is very broad and, in the two expanded specimens, hangs down 
vertically. It was noted in this position in two living medusae, which had, however, 
both been injured in the net. 
