MEM. M. C. Z., IX. No. 3. — ACALEPIIS, POLYPS. 25 



30. A larva whicli still retains a neotocalyx with the form of that of Monoplajcs, but has a second nectocalyx 



(a. mcx.) and a well-developod axis. The second nectocalyx (;>. ncx.) is shaped like that of a Mugijicra. 

 a. Anterior end of bell, as it moves in water, p. ncx. Posterior nectocalyx (nectocalyx of Monojjhycs). 

 pyt. Polypite. r. tb. Radial tube. ta. Tentacle. 



31. "Muggima larva." A larval (?) condition with a single characteristic nectocalyx, often, according to Chun, 



mistaken for a Diphycs with bell (posterior) broken off. a. uc x. Anterior nectocalyx. ax. Axis. 

 go ph. Gonophore. hijph. Hydropliyllium. pyt. Polypite. socy. Somatocyst. 

 Each of these clusters on the stem probably develops into an Eiidoxia-Wkn medusa (28). 



