528 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [16] 
PEGANTHA, sp. 
[Plate 1. ] 
The sexual bodies divided into a number of separate sacs pendant 
from the abaxial lower wall of the stomach. The sexual glands do not 
enter the umbrella lobes, but alternate with the attachments of the 
tentacles, which they equal in number. No coronal fossa. * 
Specimen examined. 


Catalogue Station. 
Sere North latitude. | West longitude. 

(o} / ie) / 1 
11654 2559 39 48 00 71 48 30 

Bell, crown-shaped, twice as broad as high, with stiff gelatinous walls. 
The bell is thick, biconvex, firm. The marginal lobes folded inward 
. on the oral side so that they are with difficulty bent back to normal 
position without rupture. Exumbrella crossed by strongly-marked, 
prominent radial ridges, separated by radial furrows. These ridges 
and furrows arise from the center of the exumbrella in the radii of the 
marginal lappets and divide, sending off lateral branches which pass 
into the marginal lappets. 
The collar of the umbrella, or the peripheral portion of the bell, is 
made up of thirteen horseshoe-shaped marginal lobes with festoon 
canals. These lobes are connected by a thin membrane which unites 
contiguous lobes and skirts their borders. The specimen was not well 
enough preserved to observe the sense-bodies. 
The subumbrella is divided into two regions, one corresponding with 
the central disk and marked by the lower stomach wall; the other with 
the collar region formed by the horseshoe lappets. The mouth opening 
is simple. The lower stomach wall thick, well marked. The sexual 
sacs form a number of pouches upon the outer rim of the lower stomach 
wall, They appear as folds or separated sacs, the exact number of 
which could not be determined in the single specimen studied. There 
are thirteen sexual glands, each of which lies in an internemal radius. 
An open niche is formed in each marginal lappet, as described by 
Heckel, in which the sexual organs are forced when the medusa bends 
inward the lobes of the collar. There are thirteen tentacles, each of 
which arises in the incisions formed by the horse-shoe-shaped festoon 
canal. They are long and slender, apparently hollow, and have the 
same color as the bell. 


*The surface of the exumbrella is continuous and without division between the 
disk part of the umbrella and the marginal lobes. JP. pantheon, which this species in 
some respects closely resembles, has a ‘‘ deep horizontal coronal fossa,” 


