species named sctosiis is already i)reoccupied in the genus 
Lipcunis I have had to find a new name for the species. [ am 
calhni^- it Lipcunis catoiii. 
In this connection it may also be noted that the figures 
of Giebel's Docoplionis dciitafits from Dioiiicdca c.viilans on 
PI. XIV of this same voltime (i68, extra vol.) of the Tran- 
sactions of the Royal Society, are plainlv made from s])ecinien> 
of the well known albatross parasite Uui-xiiicfopiis faiinis. 
The figure marked i6<? is of a female £. faiiriis and that 
marked l6 5 is of an immature specimen, probably male. .\lso 
the figure rj of the same ]ilate illustrating his species Xiiunis 
angiilicollis from nionictica c.riilans. looks suspiciouslv like 
a female Lipcunts. and is, 1 am inclined lo think, the same 
species described by Kuwana and myself in 1900 ( I 'roc. .\cad. 
Nat. Sci., Philadelphia, \ol. _-_:;, pp' 155-156, id. \'II, fig. 3) 
as Lipcunis iiiacilhciinyi. from a single female taken from 
Diouicdea iii^^ripcs. collected at Pt. Barrow, Alaska. If so, the 
species becomes Lipcunis (iiigulicollis Giebel. 
The determinations and descriptions of the parasites of 
the South Georgia Expedition with their host records follow 
and are followed in turn bv a host list with accredited 
parasites. 
DocoPiioRUS i..\Ki X. var. i'.\rv.\ Piaget. 
Four specimens of this small form of the widelv distributed 
and abundant i)arasite of gulls, taken from Lanis doiuiuicauus 
(South (Georgia Id.; R. C. M., 1718). 
DoCOI'HoKl'S ATI.AXTICI'S S]). UOV. 
Males and females from Stcrcorarius crcpidatiis ( Xorlh 
Tropical Atlantic: K. C. M., i-'/Q. i-'<)8), and from Sterna 
paradisca (South Atlantic: R. C. ^L. 131)8). This well 
marked new [htcuf^Jionis from terns is a form somewhat be- 
tween D. pitstulosits and D. laricola. with an emarginate 
clvpeus but one not deeplv and sharply emarginated as in 
laricola. Its male lacks the characteristic genital folds of the 
male pustiilnsiis. It most closely resembles P. siiydcri 
Kellogg &• Paine, described in njio ( Knt. Xews, A'ol. _M, jip. 
i24-t_'3, 2 ligs. ) from Sterna liinata ( La\'san Id. Pacific 
