. 
rs 
Family PERIPHYLLIDA, 
532 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [20] 
Heeekel. 

PERIPHYLLA HYACINTHINA,* Steen. 
pore | Station. | North latitude. 
11651 
11655 
11662 
15750 
15756 

2427 2 46 00 
2565 38 19 20 
2429 42 55 30 
2728 36 30) «(00 

Family 
West longitude. | 
| 
| 
51 00 00 | 
69 02 30 } 
50 51 00 
} 
| 

EPHYRIDZ, Heckel. 
EPHYROIDES ROTAFORMIS, Fewkes. 
. s bd . 
Several more specimens of this remarkable genus and species were 
collected by the Albatross in 1886. 
Although ali were in good condi- 
tion as far as the bell and subumbral radial elevations are concerned, 
the finer anatomy could not be made out. 




| | | 
oer Station. | North latitude. | West longitude. 
| | Take 
| { o / re | ° , “ 
15236 Q717 | 38 24 00 | 71 13 00 a 
15249 2719 | 38 29 30 vO Ws) 
15256 2717 38 24 00 71 #13 «400 
15266 2712 38 20 O00 | 70 U5 30 
| 

Ephyroides is characterized as follows: On the subumbral surface of 
a thick umbrella there are radial elevations (in one specimen 382 in 
number) which alternate with the marginal lappets. These elevations 
are half cylindrical, sausage-shaped, radially situated, extending from 
the margin of the umbrella at its junction with the marginal lappets 
he bell. They resemble on the subumbral side 
of the umbrella the socles of the exumbral sheet and lie in the radii be- 
towards the center of t 


some w hat seri the young Per ‘oli but has Diiaht sense bodies and eight ten- 
tacles. It remains yet to be seen whether the young Periphylla has the same number 
of tentacles and sense bodies as the adult. 
If it has eight tentacles instead of twelve 
it may be readily conjectured that Nauphanta is a young Periphylla, and that im- 
mature tentacles have been mistaken for sense bodies. 
I have elsewhere recorded a Nauphanta, N. polaris, Fewk., nes Lady Franklin 
Bay, North Greenland. 
There seems to be a relationship between the cold waters of great depths of the 
sea and those of the cold waters of the Arctic Ocean. 
play an important part in the relationship of medusw from these two localities. 
Temperature would seem to 
