LEPTOMEDUS.*: — EUTIMA. 



299 



Each lithocyst contains 3 to 8 spherical concretions. There are 4 slender radial-tubes. The 

 peduncle is about as long as the bell diameter. It is conical above and prismatic below. 

 Stomach about one-fourth as long as peduncle, with 4 simple lips. There are 4 gonads upon 

 the 4 radial-canals, one on each canal. They extend from near the bell-margin to base ot 

 peduncle, but do not run down along the prismatic part of the peduncle. 



The stomach and the entoderm of the tentacle-bulbs are intense green by reflected light. 



This species was found by Professor Brooks at Beaufort, North Carolina, on August 



7, 1880. , . , , 



The bell is flatter than in Eutima mira McCrady, the tentacles are longer, and the 

 marginal cirri less numerous, but the only really distinctive feature appears to be the semi- 

 circular flaps above each tentacle-bulb. 



Eutima insignis Haeckel. 



Sithonorhvnchus insignis, Keferstein, 1862, Zeit. fur wissen. Zool., Bd. 12, fign. 3-8. 



ffift Haeckel, ,879, Syst. der Medusen, p. , 9 2.-Browne, .895, Proc. and Trans. Liverpool B.ol. Soc, vol. ,, p. 282; 

 1896, Proc. Zool. Soc. London, p. 492. 



Bell 8 mm wide, hemispherical. 4 radially placed tentacles 2 or 3 times as long as the 

 bell-diameter, each flanked by a pair of basal cirri; also about 30 tentacle-bulbs, each flanked 



by a pair of cirri. There are 8 adradial 

 lithocysts each with 2 to 5 concretions. 

 Peduncle long, narrow, and of uniform 

 width, being I or 2 times as long as the 

 bell-diameter. The stomach is about halt 

 as long as the bell-radius, flask-shaped, 

 with 4 large lips. The 4 gonads flank the 

 4 radial-canals on the peduncle. They 

 begin to develop near the stomach and 

 extend upward. The medusa is colorless. 



Found at St. Vaast, northwest coast 

 of France; off the British coasts, Ply- 

 mouth, Isle of Man. Hydroid unknown. 



Browne, 1898 (Journal Marine Biol. 

 Assoc. Plymouth, n. s., vol. 5, p. 190), 

 believes that Saphenia mirabths is prob- 

 ably a 2-tentacled, young stage or an 

 arrested form of Eutima insignis, which 

 becomes mature with but 2 tentacles. It 

 may, on the other hand, be an arrested 



Fig. 162.— Eutima "gracilis," after Fewkes, in Bull. Museum f orm or starved variety, of E. campan- 

 Comp. Zool. at Harvard College, a. Lateral cirri. 

 b. Marginal cirri.= Young of E. mira. Ultlttl. 



Eutima orientalis. 



Octorchh orienlalis, Browne, ,905, Report Pearl Oyster Fisheries, Gulf of Manaar, Suppl. Report No. 27, Roy. Soc. London, 

 P. >39> P la,e 3' fi K- 4- 



Bell probably hemispherical, 5 or 6 mm. wide. 4 long radial tentacles, with elongate 

 cylindrical basal bulbs. 18 to 20 marginal bulbs on each quadrant ot the margin, each bulb 

 with a lateral cirrus. 8 lithocysts near the 4 tentacles. Concretions ( ?) 4 straight narrow 

 radial-canals. Peduncle about twice as long as bell-diameter, with a dome-like base and 

 elongate 4-sided, prismatic, central part. Stomach small, with 4 short lips with sinuously folded 

 margins 8 gonads, 2 on each radial-canal. They are well developed over the middle two- 

 thirds of the subumbrella lengths of the 4 radial-canals. Galle Bay, Ceylon, June to August. 

 Closely related to E. campanula, but distinguished by having only 4 tentacles "istead ot 8. 

 E campanuhta, however, is often found with but 4 tentacles and immature gonads. When 

 mature it appears to have 8 or more tentacles. E. orientalis is probably only a variety ot t. 

 campanula** which becomes mature ( ?) when it has 4 tentacles. Browne studied 10 speci- 

 mens. 



