G72 



MKDTS.E OF 'IHK WUHLI). 



'I'litre are 8 separate niouili-arms, each three-eii;htlis as long as the bell-dianieter. The 

 lower, j-winged, expanded part of each arm is about 5 times as long as the simple, flattened, 

 upper part of the arm. Each mouth-arm is bluntly pointed and its frilled mouths lack fiia- 

 menis or other appendages. The mouth-frills extend to the extreme tip of the arm and there 

 is no naked, terminal portion. 



A zone of po\verfull\- developed, unbroken, circular, subumbrella muscles extends from 

 the outer edge of the arm-disk to the bell-margin. The gelatinous substance of the bell is 

 very tough and of a leathery consistency. 



16 radial-canals leave the central stomach: 8 rhopalar and 8 adradial. These are con- 

 nected by a ring-canal on the outer side of which there is a fine-meshed and on the inner side 

 a coarse-meshed network of anastomosing vessels. 



The medusa is dull, uniform dark brownish-purple, resembling old leather soaked in 

 water. It is abundant in Manila Bay, Philippine Islands, where it occurs over the bottom 

 in shallow water. 



Seven specimens found in Manila Bay on December 9. 1907, are in the collection made 

 bv the U. S. Fisheries Bureau steamer Alhatross. and a larger one on March 11, 1908. This 

 largest specimen serves as the type of the species in the National Museum at Washington. Irs 

 dimensions in mm. are as follows: Bell 1 15 wide, evenly rounded, 35 high; arm-disk 75 wide 

 where it arises from the subumbrella, 52 wide at level of origin of mouth-arms; mouth-arms 

 58_long, upper arm 7 long, lower arm 51 long and 30 wide. 



Fig. 41 j. — Caiosiylus furpurui, sp. nov. Drawn by the author, from specimens obtained by the U. S. Bureau of 



Fisheries steamer Albatross in Manila Harbor. 

 A, oral view, half natural size. Only two of the mouth-arms are shown; 5 others are cut off close to their paints 



of origin, and one is shown cut across in its expanded ;5-winged part, fi, side view. C, genital ostium 



showing subumbrella papilla flanked by a pair of cocks-comb-shaped subumbrella projections. D, 



exumbrella view of rliopalium showing furrowed sensory pit. 



Genus LYCHNORmZA Haeckel, 1880. 



Lychnorhiz/i+ Cramhorhiza, Haickel, 1880, Syst. der Mcdusen, pp. 587, 653.— Vanhoffen, 1888, Bibliotheca Zoologica, Bd. i, 



Heft. 3, pp. 18, 41. 

 Lychnorhi2a,MAAS, 1903, Scyphomcduscn der SIboga Exped., Monog. 1 1, pp. 48, 80; 1906, Revue Suisse de Zool., tome 14, p. 102. 



The type species is Lychnorhiza lucerna Haeckel, from the coast of Brazil, Rio de Janeiro 

 to Pernambuco. 



GENERIC CHAR.^CTI^RS. 



RhizDstomata triptcra with filaments, but without clubs, upon the 3-winged mouth-arms. 

 No axial terminal club at the end of each arm, and no club-shaped appendages between the 

 mouths. The stomach gives rise to 16 radial-canals: 8 rhopalar and 8 adradial. The rhopalar 

 canals extend to the bell-margin, but the adradial ones end in the ring-canal. Blindl\' ending 

 centripetal vessels arise from the inner side of the ring-canal and may anastomose to some 

 extent. On its outer side the ring-canal gives ofF a network of anastomosing vessels which 

 extend into the lappets. 



