•_'(l Till, VOYAGE OF H.M.S. CHALLENGER. 



quite sure to which genus this animal lias to be referred ; but I think that it is nearest to Clistosaccm, Lillj., 

 the only Khizocephalid in which there is no anus. According to Gerstaecker, Peltogastridoe have only heen 

 i. .Hud nn the abdomen of Decapoda, from which this specimen might probably have been detached and fallen 

 into tin' open breeding-cavity of the Hymenaster." 



Station 200, October 23, 1871 ; lat. 6° 48' N., long. 122° 25' E.; Basilan Straits, Philippines, 255 fathoms. 

 Two specimens of Peltogaster on Candid shrimps. 



Station 21 I, February 10, 1875; lat. 4° 33' N., long. 127° 6' E; off Meangis Islands, 500 fathoms. One 

 specimen of Peltogaster on Ophiurid. On this specimen R. v. Willemoes Suhm remarks: — "Near the 

 mouth of an Ophiurid I found a large tumour, and inside a Bopyms or Peltogaster inflated with eggs." 



J. M. 



