BIGELOW: THE CTENOPHORES. 381 



Torrey's figure in the latter respect, though with shorter meridional 

 canals. Without examining specimens I hesitate to assign a definite 

 status to this form, though I am of the opinion that it will eventually 

 prove to be palmata. 



Hormiphora punctata Moser, is remarkable among Hormiphoras 

 from the fact that the ribs are pigmented; a character in which it 

 parallels Pleurobrachia pigmentata Moser. Unfortunately the single 

 specimen (4 mm. long) was in very poor condition, and, to judge from 

 the figure, much contracted. Better material will be required to 

 show whether it is really generically distinct from Chun's Tinerfe 

 coerulea which it much resembles in general appearance. 



H. sibogae Moser is a species so easily distinguished from all other 

 Hormiphoras by its very short meridional canals, small and short 

 tentacle-sheaths, retracted apex, and junction of meridional and 

 adradial canals well above the level of the funnel that there is no 

 doubt of its validity. The only tentillum observed was of a pecu- 

 liar trefoil-like outline. 



Finally, we have the case of the Beroe cucumis of Mertens ('33). 

 Moser (:09) has referred this species to " Cydippe," hesitating to 

 locate it in either Pleurobrachia or Hormiphora, to one or other of 

 which she believes that it belongs. Mertens's excellent figures show 

 that it is undoubtedly a Hormiphora; but its exact relationships 

 to the other members of that genus can be settled only by an exami- 

 nation of new material. 



Hormiphora palmata Chun. 

 Plate 1, figs. 1-6. 



Hormiphora palmata Chun, '98, p. 17, pi. 3, fig. 2 (non pi. 3, fig. 1) 

 (partim). 



Lampetia fusiformis Agassiz and Mayer, :02, p. 171, pi. 13, figs. 



59, 60. 



Hormiphora fusiformis Mayer, : 06, p. 1134. 



Hormiphora amboinae Moser, :08b, p. 8, pi. 1, fig. 4. 



Hormiphora japonica Moser, :07, p. 450, :08a, p. 10, taf . 1, figs. 6-8. 



? Euplokamis californensis Torrey, : 04, p. 46. 



? Mertensia ovum Torrey, :04, pi. 1, fig. 1. 



Station 4600, about 200 specimens, 15-27 mm. long. A swarm was 

 encountered at this Station on the surface. 



Station 4627, 2 specimens, both about 17 mm. long. 

 " 4631, 2 " 25 and 15 mm. long. 



