BY E. J. GODDARD. 851 



septum xii./xiii. is at the level of the mass of cells in association 

 with xi./xii., pushed backwards so as to form a small ovisac; and 

 in association with this are to be made out a mass of cells 

 resembling those connected with the more anterior septum. 



Remarks. — At the October Meeting of the Society I described 

 two species of a new genus, Astacopsidrilus, belonging to the 

 Phreodrilidce, and was able to extend the distributional area of 

 the family into more temperate regions in New South Wales. 

 The present form is the first member of the family recorded from 

 Tasmania, and its occurrence in that region is of some interest 

 inasmuch as it completes the circuit of distribution from South 

 America to New South Wales. 



The number of genera now known definitely is three, and in 

 all possibility the present form is to be regarded as the repre- 

 sentative of another genus. 



The known species and their regions of occurrence are as 



follows : — 



Phreodrilus Beddard (1891). 



P. subterraneus Beddard (1891) — New Zealand; subterranean 

 wells. 



P. albus Beddard (1894)— Port Stanley, Falkland Islands. 



P. pellucidus Beddard (1894) — Uschnia, South America. 



P. niger Beddard (1894)— Port Stanley, Falkland Islands. 



P. branchiatus Beddard (1894) — Valdivia, Chili. 



P. /acws^'s Benham (1904) — Lakes Wakatipu, Manapouri, N.Z. 



P. beddardi Benham (1904) — New Zealand. 



P. mauiensis Benham (1904) — Lake Taupo, New Zealand. 



P. Kerguelenensis Michaelsen (1902) — Kerguelen Island. 



Phreodriloides Benham (1907). 



P. notabilis Benham(1907)— Blue Lake, IVlt. Kosciusko, N.S.W. 



Astacopsidrilus Goddard (1908). 



A. fusif'ormis and A. notabilis Goddard (1908) — New South 

 Wales; on Astacopsis serratus (Shaw). 



Genus 1 

 Mt. Wellington, Hobart, Tasmania. 



