BIGELOW: MEDUSAE AND SIPHONOPHORAE. 393 



figures, it may be definitely stated that C. lativentris has a canal- 

 system. 



The Pacific Cunina recently described by me (1909a), as C. globosa 

 Eschscholtz, likewise has unmistakable canals; and further resembles 

 C. lativentris in its short oval otoporpae (as I have been able to es- 

 tablish by actual comparison), and in lacking nematocyst pads under 

 the bases of the tentacles. But it has no peduncle, and its gastric 

 pockets are square, instead of widening distally, as is characteristic 

 of C. lativentris. Eschscholtz 's figure (1829, taf. 9, fig. 3) of C. globosa 

 is so general that it will always be open to question whether my Pacific 

 specimens actually belong to that species. But it shows the same 

 general outline, and number of tentacles, while he observed about the 

 same number of otocysts (3) per lappet, though without recognizing 

 their nature. And since there is nothing to forbid my reference of the 

 Albatross specimens to C. c/lobosa, it will stabilize the nomenclature 

 of the genus to accept it. The type-species is Cunina globosa. 



Cunina duplicata Maas (1893), so closely resembles C. lativentris in 

 general form, in its well-developed peripheral canals, and its short 

 otoporpae, that it may finally prove to belong to that species, from 

 which it differs only in the greater number (16) of tentacles. But 

 only one specimen of C. duplicata has been seen. 



C. peregrina Bigelow (1909a) is separated from all other species, 

 except C. proboscidea, by the absence of peripheral canals: from C. 

 proboscidea by the absence of peduncle, by its long tentacles, and by 

 more numerous otocysts (4-8 per lappet). It is the only Cunina 

 represented in the Bache collection. 



Cunina peregrina Bigelow. 



Cunina peregrina Bigelow, 1909a, p. 59, pi. 1, fig. 6; pi. 15, fig. 1, 2, pi. 28, 

 fig. 1-7, pi. 45, fig. 8; Maas, 1909, p. 37, taf. 3, fig. 19; Mayer, 1910, 



The Albatross specimens from the eastern Pacific (Bigelow, 1909a) 

 ranged from 3-14 mm. in diameter, the number of tentacles from 8-12. 

 The Japanese specimens recorded by Maas (1909) likewise had 8-12 



