180 Transactions. — Zoology. 



indeed, to affirm with certainty that these two species are 

 endemic, but in all probabihty this is the case. Ic is interest- 

 ing to note that, whereas all the sipunculids collected on the 

 North Island are Dendrostoma aneum, the commonest species 

 on the shore of the South Island is Physcosoina annu- 

 latum, and this is the only sipunculid hitherto collected at 

 Stewart Island. Shipley''' says that Physcosovia "is almost 

 entirely tropical," and that Dendrostorjia is "found only in 

 tropical seas." The local distribution of these two species 

 along our coasts is, then, of interest in breaking this record. 

 The shores of Stewart Island cannot be termed in any sense 

 " tropical " ; and although Auckland Harbour may deserve the 

 epithet, yet Wariington is distinctly extra-tropical, and at this 

 spot I collected, on the same day and under neighbouring 

 stones, both the above-named species. 



We have here, then, in the case of Dendrostoma, as it 

 seems, a migrant from tropical seas, and further collections 

 along the coast will be examined with increased interest, in 

 the endeavour to ascertain how far north P%scosoma journeys^ 

 and how far south Dendrostoma. Captain Hutton gives 

 "Cape Campbell and Dunedin" as two localities for Phys- 

 cosoma annulattmi, so that the two species overlap on the east 

 coast of the South Island. 



As TO THE PeOBABLE IDENTITY OF SiPUNCULUS LUTU- 

 LENTUS AND S. JENEUS. 



A careful comparison of my numerous individuals with 

 Hutton's specimen (&) from Cape Campbell shows a complete 

 identity ; and, moreover, with the exception of the greater 

 length ascribed by him to S. lutulentits, my specimens and 

 his specimen (&) agree with his diagnosis of that species, for 

 the form of the body, which he states ends in a " pyriform 

 swelling," is, as we now know, merely a matter of preserva- 

 tion, due to a constriction of the circular nmscles near the 

 hinder end. 



Hutton's type of -S\ lutulcntus measured Gin. — i.e., 

 150 mm. — whereas the largest specimen seen by me is only 

 40 mm. His measurements, converted into millimetres, 

 stand thus as compared with a fully extended specimen from 

 Auckland presented to the Museum by Professor A. P. 

 Thomas : — 



F. W. H. A. P. T. 



Total length ... ... 150 40 



Breadth ... ... ... 10 6 



Length of introvert... ... 18-75 10 



Breadth of introvert ... 6*25 3 



• " Cambridge Natural History." 



