4 8 EXPÉDITION ANTARCTIQUE BELGE 



Neviani's o-enus, it is perhaps better to adhère to Hincks, until a careful revision of this 

 and allied gênera has been made, as not ail that are now placed under Lepralia will belong 

 to Hippoporina. 



Habitat. — Exp. Antarct. Belge. 



N° 288, Dredge I. Lat. 71 09' S.- Long. 8g°i5'W. ; 460 met.; +o.3 C. 



N° s 332, 373, Tangles IV. Lat. 71° 18' S.- Long. 88°02'W. ; 435 met.; —0.3 C. 



N os 5g6, i25o, Tangles VU. Lat. 70° 23' S.- Long. 82047' w - î 4 8 ° met.; +0.8 C. 



N° 683, Tangles VIII. Lat. 70" 00' S.- Long. 8o° 48' W. ; 5oo ? met.; -fo.g C. 



Lepralia galeata Busk 



PI. VIII, figs. lia, b 



Lepralia galeata Busk, Brit Mar. Polyzoa, p. 66, pi. XCIV, figs. 1-2; Phil. Traus., vol. CLXVIII, p. 3). 



Penna galeata Ridley, Proc. Zool. Soc, 1S81, p. 4S. 



The spécimen from Porto Torro has on the dorsal surface large radicle processes, 

 on account of which I provisionally named it radicifera, but there does not seem to bc 

 sufhcient reason for separating it from galeata. The surface has large pores, the ovicell 

 being also perforated, though with somewhat smaller pores than those on the front of the 

 zoœcium. The aperture has a wide sinus and behnv it there is an avicularium with an 

 oval mandible. The thickened margin of the aperture is continuous with the raised smooth 

 part upon which the avicularium is situated. The moderately large oral glands are attached 

 to the diaphragm. 



There are 16, 17 tentacles, and there are ova in the ovicells, and ovaria in the zoœcia, 

 together with testes and spermatozoa. 



In the spécimen in the British Muséum collection, described in Busk's « Marine 

 Polyzoa », the avicularia only occur to a few zoœcia. 



This is much like the S. packnoides MacG. which however has not as large pores 

 and has a triangular mandible. 1 hâve also a spécimen sent to me marked « Singapore 

 or Philippines » which may be this species, though it has a triangular mandible replaced in 

 some cases by a much larger one, which sometimes becomes duck-billed shaped. In S. galeata 

 from Kerguelen, collected by the English Venus Expédition, and now in the British Muséum, 

 there are only pores round the border and the mandibles are spatulate. 



The aperture in S. nirea B. and S. furcata B. is very similar to that of S. galeata. 



Habitat. — Kerguelen ; Falkland Islands ; Straits of Magellan ; (Elizabeth Island 

 fathoms, and Sandy Point 7-10 fathoms) (Ridley). 



Exp. Antarct. Belge. 



N° 139. Porto Torro, Ile Navarin, Magellanes, Chili. Jan. 3 rJ , 1898. 



SCHIZOPORELLA 



In my paper on the « Bryozoa from Madeira (') » I mentioned that a revision oi 

 Schizoporella as now understood was required and indicated certain groups. Regarding the 



(1) Journ. Roy. Micr. Soc, 1S99, p. 7. 



