382 



bulletin: museum of comparative zoology. 



Station 4638, 1 specimens, fragmentary. 



4642, 1 

 4650, 2 

 4652, 3 

 4656, 

 4682, 1 

 4689, 2 

 4691, 1 

 4713, 1 

 4718, 1 

 4729, 1 

 4731, 2 

 4735, 1 

 4741, 1 



16 mm. 

 both 16 mm. long. 

 16 mm. long. 



long. 



35 mm. long, 

 both 22 mm. 

 fragmentary. 



long. 



32 mm. long. 



24 mm. long. 



25 and 15 mm. long, 

 fragmentary. 

 22 mm. long. 



Also Hawaiian Islands, 19 specimens, all somewhat injured. 



Southeast coast of Japan, 35 specimens, 10-35 mm. long, collected 

 by the " Albatross." 



Except as noted above, the material is in excellent condition, but 

 unfortunately there are no very young stages. The specimens are 

 all considerably longer than broad, more or less narrowed at each 

 pole, and but slightly flattened in the pharyngeal plane. But, as 

 shown in the accompanying table, the precise proportion between 

 length and diameter varies considerably; and the same is true of the 

 polar narrowing. 



Table of dimensions and proportions: in the latter length is taken 

 as the unit. 



