I'AIIASITIC Wolt.MS LKIPKR AM> ATKI NS< >\. 



spiculc there is also a hollow tube, ilir walls oi which taper a\\a\ toward.-* the lip. thus 

 exposing the lumen. 



The arrangement n| I he papillae agrees exactly \\llh the i lescription t,\' Kailliet and 



Henry. There are four pairs of simple papillae at the liase oi' the ariVular lip ; text -tin. 

 '2. '/). After a slmrt interval, and lyinn well <>n the venti'al surt'aee. there is ;i pair nl' 

 large double-headed papillae (text-fig. 2, c) ; alongside these () n cither side eomm.ei -e-. 

 a double series (if simple papillae, which extends forward to liccumc preanal without a 

 distinct lireak. These papillae continue still further in 

 single scries after aliout Me eighth paired set. < >n 

 either side i he cuticle is raised from the liodv-wall 

 and flattened dorsoventrally t<> form a shallow keel 

 (texi -tiL!'. -. /') not more than ' 15 mm. deep. 



4. l\iitlil< > mi oftcitlntci (Rud.). 

 Ascaris oxculata, Itud. ISUL'. 



A larLie numlicr of somewhat immature forms of 

 this common species \\ere fonml in the Sea-Leopard 

 ( I li/<lriii-<iii i'i'jitiit/.r) and the Crab-eating Seal (Lobodon 

 careinophagus). Forms which appear to lie the larvae 

 of this parasite were ciicvstcd in the mesentery and 

 under the peritoneal coats of the pyloric processes and 

 in the liver of Treinatomus bernacchii. The species has 

 previously Keen recorded in Antarctic Seals liy v. Lin- 

 stow ami li Kailliet and Henry. 



5. 



-ini rectangula (v. Linst.). 



Ascaris i-i-i-//iiii/iilii, v. Linstow, 1906. 



siejwcep/jaZa, Railliet and Henry, I'.iO". 



i>v.v. -In association with the previously described 



Linst.): vcntnil view of tlie 

 istri-inr cxt remit y "f tlie male, 



slici\viii<{ tlie characteristic 



arranueinent <it' the papillae. 

 n, Anogenital ajicrtmv : /', eiiti- 

 cular alae ; r, paired dcnilile 

 jiapilljif : </. cMiida! i;rini]i "t 

 four pajiillae. 



Both are stout . <>[iai | ue a in I 



species, .1. radiata, in the \\eddells Seal were a 

 QUmber of larger specimens. These have already liecn 

 recorded liy v. Linstow as Jsw//v'.v rectangular and 

 aliout the same time liv Kailliet and Henry under tlie 

 name nf . |.v<w/v.v .v/, ;/,/<-, phala. 



Parasite. -.Male measures L'".^ cm. Female .> cm. 

 ri^id torms. To the naked eye they appear to lie lame and mature torms of Kathlaena 

 i-iiiliiitii. The general topography is the same. There are three labia intermedia. The 

 oesophagus has an appendage and the gut has a blind anterior prolongation, Th 

 papillae in the tall differ onlv in detail from those of A. railiitfa. 



The spicules are cipial and measure 4'4 mm. : iliev end in a slighl dilatation. Tliev 

 arc (cu4 mm. across. The anus is (ri_'7 mm. from the lip n| the tail. 



i; 



