TUACHYMEDUS.E — OLINDIAS. 



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The medusae of Olindias are all tropical forms living near shores, usually in the relatively 

 impure water of harbors or over muddy coral flats. An important series of tabulated 

 observations upon this genus has recently been published by H. B. Bigelow. 1909. 



Synoptic Table of the Species of Olindias. 



*Maas, 1905, regards 0. malayensis, tenuis, and sambaquiensis as varieties of 0. phosphorica. He points out the fact that gonads in O. 

 sambaquiensis appear to become mature only when the medusa is larger and has more marginal appendages than in other varieties of Olindias. 

 He would arrange varieties in series beginning with 0. malayensis, which becomes mature with least number of tentacles, etc., through 0. 

 tenuis, phosphorica, and finally sambaquiensis. 



■j-This species is distinguished by unpaired lithocysts. 



