﻿202 



The Philip-pine Journal of Science 



1914 



surrounded by a whorl of smaller similar appendages. This 

 central appendage reaches a length of 30 mm. and a width 

 of 40 mm. The arms may have toward their distal ends a 

 number of ribbonlike or leaflike appendages, reaching a 

 length of 20 mm. and a width of from 8 to 15 mm. Of 

 the 27 specimens in the collection, 10 have the large central 

 appendage and a whorl surrounding it, 11 have a large central 

 appendage without a surrounding whorl, 3 have no enlarged 

 appendage, and 3 have enlarged appendages on the arms but 

 none in the center of the disk. 



The central stomach is circular in outline, and is encroached 

 on from below by the 4 gonads. Twice as many radial canals 

 as sense organs originate from it and extend to the margin, giv- 

 ing off branches which form a very complex network of anas- 

 tomosing vessels. The rhopalar canals increase in size toward 

 the margin, while the interrhopalar canals become small distally. 



In preserved specimens the umbrella is light olive green. 

 On close examination dull white bands may be seen running to 

 each sense organ. The mouth arms usually exhibit 3 color zones : 

 A central circular area which is yellow, a zone composed of the 

 portions of the arms projecting beyond the disk which is also 

 yellow, and between these zones a zone of green. The append- 

 ages are opaque white, and contain a network of canals, giving 

 them a leaflike appearance. The color of the live medusa is very 

 similar to that of the preserved specimens. 



Measurements and numbers of sense organs and of marginal lappets to a 

 paramere of 1U specimens from Culion. 



Specimen No. 



Diameter 

 of the 

 bell. 



Diameter 



of the 

 arm disk. 



Length oi 

 the mouth 



arms 



(from the 



center of 



the arm 



disk). 



Sense 

 organs. 



Marginal 

 lappets 

 to a para- 

 mere. 



1 



tntn. 

 121 

 129 

 120 

 128 

 145 

 ISO 

 130 

 143 

 151 

 145 

 146 

 154 

 118 

 160 



WITTt. 



50 



68.5 



65 



58 



57 



58 



60 



50 



79 



62 



63 



68.6 



60 



60 



WITH, 



95 



89 



90 



99.6 

 104 

 112 



99 

 102 

 146 

 120 

 114 

 176 



96 

 120 



20 

 20 

 16 

 20 

 19 

 17 

 20 

 19 

 17 

 17 

 16 

 19 

 18 

 16 



S 

 6 

 5 

 5 

 5 

 5 

 5 

 5 

 5 

 6 

 6 



.•> 

 6 



2. 



8_. - 



4 



6 . 



6 -. 



7 



8 



9 



10. 



11 ... 



12 



13 



14 









