24 EXPEDITION ANTARCTIQUE BELGE 



the outside and one inside. It is also closely related to 5. benemunita Busk, as well as to 

 S. obtccta Haswell; and S. cervicornis Busk, has a somewhat similar scutum, but also has a 

 vibraculum. 



Habitat. — Victoria. If it is the same as benemunita then it occurs also from Kerguelen 

 and S. America. 



Exp. Antarct. Belge. 



N° 871, Dredge III. Lat. 70 40' S.- Long. io2°l5'W.; 2S00 met.; +0.5 C. 



Scrupocellaria fuegensis (Busk) 



Menipea fuegensis Busk, Brit. Mus. Cat, p, ai, pi. XIX. 



A spécimen from the Straits of Magellan on the carapace of Eurypodius Latrcilli, is the 

 species described by Busk in the « British Muséum Catalogue », and has the same short 

 internodes, 4 spines, a latéral avicularium to the lower zoœcium, an acicular curved scutum, 

 an anterior avicularium below each area, a radicle chamber in the lower zoœcium opposite 

 the anterior avicularium. Jullien describes and figures as Menipea fuegensis B. (') a form in 

 which the internodes with female zocecia are very long, sometimes having as many as 20 zoœcia, 

 but this is not the case in the présent spécimen, in which there are a few ovicells in internodes 

 about the usual size. In spécimens of S. ternata, var. gracilis from the Kara Sea, and from 

 the Gulf of St. Lawrence ovicells occur on internodes of the ordinary length. The M . fuegensis 

 of Jullien however has no anterior avicularium and has not the long spines characteristic 

 of M. fuegensis Busk; and further the scutum is usually cleft, which is not the case in 

 Busk's figures nor in the Antarctic species, and it seems that Julliln's form should be 

 specifically separated. Busk, in his «Challenger Report» ( 2 ), describes and figures as Menipea 

 aculeata a much more attenuated form with three spines, a bi-trifurcate scutum, no latéral 

 avicularia but an anterior avicularium to each zoœcium. This was found from off South 

 America and Falkland Island, and apparently from Kerguelen Island ; and Busk considered 

 that it is the Bicellaria aculeata of d'Orbigny, but that species is figured without any avicularia 

 or scutum. Unfortunately there does not seem to be any named spécimen of B. aculeata () in 

 d'Orbigny's collection in Paris, for though there is a tube so marked, I only saw Membranipora 

 on the leaf of a deciduous tree, and inside the tube the label was «Algers» (Algiers), so that 

 a change has been made somewhere. 



I and others hâve shown that the allied Scrupocellaria ternata Eli. and Sol. of the 

 Arctic régions exhibits a considérable range of variation in the spines, scutum, and avicularia 

 and the same may be the case hère ; but we hâve no proof yet that there are not three 

 distinct species. 



Habitat. — Tierra del Fuego, and Falkland Islands (B.). Hamilton mentions it 

 from Wanganui, New Zealand ; and Harvey from Bass's Straits, but it is not mentioned 

 by MacGillivray or Whitelegge in their lists of Yictorian and New South Wales Bryozoa. 



(1) Mission du Cap Horn, p. 70, pi. XII, figs. 1, 2; pi. VII, figs. 8-10. 



(2) Zool. Chall. Exp., vol. X, pi. XXX, p. 20, pi. IV, fig. 2. 



(3) Voyage dans l'Amérique méridionale, p. 8, pi. II, fgs. 1-4. 



