I.KITOMIJHS 1. 1. \.iDK EA. 



When set free the medusa usually has 2 long tentacles, 2 well-developed hasal bulbs, and 

 4 small interradial swellings upon the bell-margin. At this time tin bell is about I nun. in 

 height and about 0.7 mm. in diameter (plate 22, rig. 2). Its outer surface is covered with 

 nematocyst-cells. There are only one m two marginal clubs or cirri in the young medusse. 

 There are, however, well-developed ocelli within the ectoderm of the inner (centripetal) side 

 of each tentacle-bulb. The 4 radial tubes are straight and narrow and thegonadsare repre- 

 sented by 4 scarcely perceptible swellings adjacent to the sides of the manubiium. The 

 manubrium is a simple tube with 4 small cruciform lips. 



As development proceeds the tentacles increase in number, as do also the clubs and cirri. 

 The bell becomes relatively flatter until it approaches a hemisphere. The gonads begin to 

 develop at the angles ot the manubrium and soon grow down the radial-canals until they 

 extend to the circular canal. The manubrium acquires 4 recurved folded lips. 



A synopsis ot the so-called varieties ot /.. cruciatii such as is given on page 204, may 

 be ot service in illustrating that we have here only one species. 



Laodicea fijiana Agassiz and Mayer. 



l.auJirta fjiana, AIMSSIZ, A., ami MAYFR, 1899, Bull. Mus. C'nmp. /mil. at Harvar.l (.'"llcgc, Mil. ',2, p. 163, plate 3, figs. 9, lo. 

 I.aotlift fijtana (var. intiim '). MAAS, 1905, CYaspr.lotcii Mrdiibrn <lrr Sibcga hij>r>l.. Munog. 10, p. 25, taf. 2, fign. 14, 15, taf. 



5, fij>n. 32-35; 1906, Revue Suine de Zool., tome 14, p. Xy. BKHWM , 1907, AnnaU ami Mag. Nat. Hist., SIT. 7, vol. 20, 



p. 467; L. maasi, p. 466. 



Bell 12 to 20 mm. wide, 4 to 5 mm. high. Bell-walls, although thin, quite rigid. 1 60 ten- 

 tacles. These are flexible, tapering, with coiled ends, and are about as long as the bell-radius. 

 About half to three-fourths of the tentacles have a dark-brown ectodermal ocellus upon the 

 inner (axial) sides of their basal bulbs. There are a few clubs on the margin between the ten- 

 tacles; about 12 to 15 in each quadrant in a large medusa, but only about 2. in each quadrant 

 in specimens 6 mm. wide. There are no cirri between the tentacles. 



The stomach is square in cross-section, very flat, and without a peduncle. It is about one- 

 fourth as wide as the bell-diameter and the lips are widely open, their folded edges inclosing 

 an open square. 



The gonads are developed upon the proximal parts ot the 4 radial-canals and grow out- 

 ward from the angles ot the stomach, so that in large medusae they may extend over two-thirds 

 to seven-eighths of the length of each radial-canal, nearly touching the ring-canal. They are 

 developed upon numerous short side branches of each of the 4 radial-canals, so that they are 

 complexly folded and quite wide. In the female the ova stand out prominently over the surface 

 of the ectoderm. The outer portions of the 4 radial-canals, which lack gonads, are straight 

 and narrow and of the same width as the circular vessel. 



The entoderm of the stomach, tentacles, and radial-canals is opaque and milky-blue in 

 color. 



Common on the surface in the tropical Pacific, Fip, and Malay Archipelago. It apparently 

 does not descend into deep water. 



In large medusz the wide, flat, open stomach recalls that of / } t\; liog,-mi. Maas found a 

 single specimen with 5 lips and 5 radial-canals, and others had 5 or (i canals. This \aiiability 

 recalls the condition characteristic of Dipleurosoma. 



Laodicea pulchra Browne. 



l.aoAict pulclira, BROWNE, 1902, Annals ami Mag. Nat. Hist., ser. 7, vol. 9, p. 280; Ibid., vol. 20, p. 466. 



Umbrella flatly curved, 25 mm. wide, 15 mm. high. About 50 tentacles without basal 

 spurs. No marginal cirri, but j or 4 clubs (cordyli) between every two tentacles. Kach cor- 

 dylus situated on a small bulb. An ocellus is usually found at the base ot every tentacle and 

 cordylus. The stomach is very large with 4 large perradial lobes extending nearly to the 

 margin of the umbrella. The mouth has 4 large lips. The gonads extend from near the 

 stomach to within a short distance of the ring-canal. Found at Stanley Harbor, Falkland 

 Islands, from November to February. Color ( ?) Briefly described, without figures. b\ 

 Browne from specimens obtained by Vallentin. May this not be identical with 

 crncidtfi ? 



