stow 1 and Fuhrmann 2 have followed Diesing. Krefft ami 

 Sweet 3 have given the host as a penguin, following Baird. 

 Krefft called the worm T. cedcri. The common penguin 

 iu Antarctica appears to he the Emperor penguin, Apteno- 

 dytea fostcri, Gray (M. 68, H. — ), this being as far as I 

 know the only species of that genus found in those regions. 

 Probably the assumption that Baird's specimen came from 

 an Aptenodytes is correct. Fuhrmann 4 in 1899 suggested 

 that T. sederi might be a synonym of TetmboLhvius muc- 

 rocephala, Rud., but in 1908 he 5 regarded it as an undefined 

 species. 



Order PROCELLARIIFORMES. 

 (A) Family Puffimd.k. 



12. PrioccUu riUioialoides, Smith (Syn. Thnlussocnt (jhtvui- 

 loides, Smith). (M.N7, 11.(577). The silver-grey petrel. 

 Ce&todA-.— lWroLotfiriwi heteroclitus. Dies. Linstow, "Report 



on the Entozoa," in Challenger Report, Zoology, XXIII, 

 1888, p. 14. (Southern Ocean— Antarctic.) 

 This species was taken by the Challenger Expedition, 

 from Priocella <i!iei<iloi<les and from the Cape Petrel, 

 Daption capensis, Linn. (M. 101, H, 688), the latter bird 

 being captured in the South Atlantic and consequently, is 

 not included here. The parasite was described by Linstow 

 as Tetrabothrium auriculatum, Linst., but Fuhrmann 6 has 

 shown that both this species and Taenia suleiceps, Baird, 

 are synonyms of Tetrabothrius heteroclitus, Dies. 

 (B) Family DlOMKDKDJS. 



13. Diomedea tdbatvits, Pall. (Syn. />. brack aura, Temm.) 

 (M. 108, H. 696). The Bhort-tailed Albatross. 



