230 MK. A. W. WATERS ON 



Bryozoa from uear Cape Horn. 

 By Aethub Wm. Watees, F.L.S., E.G.S. 



[Eead 3rd Noyember, 1904.] 

 (Plates 28 & 29.) 



The specimens now described were brought back by the French 

 Mission Scientifique du Cap Horn, in the ' fiomanche,' but they 

 do not appear to have been seen by Jullien when he wrote the 

 description of the Bryozoa*, and it may be that a part of the 

 material was not submitted to him. 



The importance of any collection from S. America is now very 

 great, when collections from the Antarctic have been made by 

 several Expeditions, and must shortly be described, for com- 

 parisons have to be made with the fauna from South America, 

 this being the nearest land to the Antarctic, and it has even 

 been spoken of as Antarctic. As already explained in my 

 report t on the Bryozoa collected by the ' Belgica,' it was for the 

 purpose of making comparison with Antarctic Bryozoa that I 

 went to Paris to study some collections in the Museum d'Histoire 

 Naturelle, including Juilien's collections ; and I have to thank 

 M. Gravier and Professor Joubin for allowing me to take away 

 some pieces for study and illustration. Besides the specie? 

 dealt with in the paper, most of which Jullien had probably not 

 seen, there are some mentioned by him which had been previouslj. 

 described under other names, as : — 



Membranipora coronata, Jull., is M. incrustans, Waters. 

 Andreela uncifera, Busk, is Micropora uncifera, Busk. 

 Lepralia collaris, Jull., is Lepralia crassilabris, Hincks. 

 ScMzoporella rimosa, Jull., is Schizoporella Bidleyi, MacGill. 

 Exochella longirostris, Jull., is Smittia fricusjns (H-incks). 

 Aimulosa australis, Jull., is Smittia marsupium, MacGill. 

 AracJinopusia monoceros. Busk, is Siantopora monoceros (Busk). 

 Osthimosia evexa, Jull., is Osthimosia eatoniensis (Busk). 

 Fedicellina australis, Jull., is Barentsia discreta, Busk. 



The most interesting observation on structure is the occur- 

 rence of a thick membranous transverse wall or tabula at a 



* " Bryozoaires," Mission Scientifique du Cap Horn, 1888. 

 t " Bryozoa," Expedition Antarctique Beige, 1904, p. 9. 



