Medusae of the world . Fig. 176.—Hydroid and medusa of Campanulina repens, after Hincks, in BritishHydroid Zoophytes. This may be the hydroid of Tima or Eirent. turned upward toward the bell-margin (plate 41, fig. 2). The main shaft of the tentacle is longand contractile and hangs downward from the turned-up end of the basal bulb. The basalbulbs and tentacle-shafts are hollow. There are no lateral cirri at the sides of the tentacles,but there are 3 very small rudimentary protuberances upon the bell-margin between eachsuccessive pair of tentacles. Thus in all there are 96 of these small protube
Medusae of the world . Fig. 176.—Hydroid and medusa of Campanulina repens, after Hincks, in BritishHydroid Zoophytes. This may be the hydroid of Tima or Eirent. turned upward toward the bell-margin (plate 41, fig. 2). The main shaft of the tentacle is longand contractile and hangs downward from the turned-up end of the basal bulb. The basalbulbs and tentacle-shafts are hollow. There are no lateral cirri at the sides of the tentacles,but there are 3 very small rudimentary protuberances upon the bell-margin between eachsuccessive pair of tentacles. Thus in all there are 96 of these small protuberances whichnever increase in size and are evidently rudimentary tentacles. There are 128 lithocysts alter-nating in position with the 128 functional and rudimentary tentacles. Each lithocyst contains15 to 20 angular concretions, arranged in a semicircle near the periphery of the cavity. Velumwell developed. There are 4 straight, narrow, radial tubes. A wide, conical peduncle pro-jects considerably beyond the velar o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
