Medusae of the world . Fig. 170.—Phonis elliceana, after Agassiz and Mayer, in Mem. Museum Comp. Zool. at Harvard College. Fig. 171.—Irenopsis hexanemalis, after Maas, in Craspedoten Medusen Siboga Exped. Aboral view of medusa. Fig. 171a.—Part of bell-margin of /. hexanemalis. narrow radial-canals and a slender circular vessel. The peduncle is about as long as bell-diameter and projects considerably beyond bell-opening. Basal part of peduncle has theshape of a 4-sided, truncated pyramid, while the distal part is long and tapers graduallytoward the stomach. The 4 radial-canals extend down the a
Medusae of the world . Fig. 170.—Phonis elliceana, after Agassiz and Mayer, in Mem. Museum Comp. Zool. at Harvard College. Fig. 171.—Irenopsis hexanemalis, after Maas, in Craspedoten Medusen Siboga Exped. Aboral view of medusa. Fig. 171a.—Part of bell-margin of /. hexanemalis. narrow radial-canals and a slender circular vessel. The peduncle is about as long as bell-diameter and projects considerably beyond bell-opening. Basal part of peduncle has theshape of a 4-sided, truncated pyramid, while the distal part is long and tapers graduallytoward the stomach. The 4 radial-canals extend down the angles of the peduncle to the stom-ach. Stomach is short and flaring; 4 well-developed, recurved, folded lips. The 4 gonadsare linear and developed upon the subumbrella region of the 4 radial-canals. The entoderm of tentacle-bulbs and gonads pink, stomach rosin-yellow. A single specimen of this medusa was found in an open net which was towed from adepth of 150 fathoms to the surface ofF Funafuti Atoll in the Ellic
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcnidari, bookyear1910
