BIGELOW: MEDUSAE AND SIPHONOPHORAE. 401 



Periphyllidae Haeckel. 



Periphylla hyacinthina Steenstrup. 



Periphylla hyacinthina, Steenstrup, 1837. 



(For synonymy, see Bigelow, 1909a, p. 26; Mayer, 1910, p. 544). 



This species has been discussed so fully by Broch (1913) and by me 

 1909a, 1913) that I need merely record the occurrence of one young 

 specimen, 18 mm. in diameter, with pigment in the " dodecahostrycha" 

 stage, from Station 10,200, 500-0 meters, and 1 specimen, 50 mm. in 

 diameter, from Grampus station 10,352, 40° N. Lat., 68° 44' W. 

 Long.; 500-0 meters. 



» Nausithoidae Claus.^ 



Nausithoe punctata Kolliker. 



Nausithoe punctata Kolliker, 1852, p. 323. 



(For synonjTny, see Bigelow, 1909a, p. 35; Mayer, 1910, p. 554). 



Station 



10,161 100-0 meters 1 specimen 



10,197 200-0 " 1 " 



10,206 surface 1 " 



These specimens, ranging from 8-10 mm. in diameter, add nothing, 

 except in the way of confirmation, to the various published accounts 

 varying in of this well-known species. 



Linuche unguiculata (Schwartz). 



Medusa unguiculata Schwartz, 1788, p. 195, taf. 6, fig. 1. 



(For synonymy, see Linne, 1788, p. 3159; Mayer, 1910, p. 558; Vanhoffen, 

 1913b, p. 429). 



The collection contains ninety-seven specimens, young and adult, 

 from Stations 10,176, 10,200, 10,202, 10,203 and "^10,206, in hauls 

 varying in depth from the surface to 500-0 meters. 



1 According to Poche (191-1) this name was proposed by Claus, in the 4th edition of his 

 Grundzuge der zoologie, 1878, to which I have not had access. But Claus soon abandoned it 

 (1881) in favor of Ephyropsidae, and it seems to have been forgotten. In 1913 I proposed it, 

 as a new name, since Ephyropsidae is not available (1913, p. 85). 



