Benham. — Invertebrates from the Kermadec Islands. 137 



Class SlPUNCULOIDEA. 

 Sipunculus nudus Linnaeus. 



This Mediterranean species is widely distributed ; it has been recorded 

 from Singapore, Japan, and elsewhere. 



hoc. — Sunday Island. 



Collected by Mr. E. S. Bell. 



Physcosoma scolops. Selenka and Man. 



Phascolosoma annulata Huttcn, Trans. N.Z. Inst., 12, p. 278, 1880. 

 Phymosoma scolops Selenka and Man, " Die Sipunculiden," p. 75, 

 1884. Physcosoma annulatum Benham, Trans. N.Z. Inst., 36. 

 p. 173, 1904. 



When I described the Sipunculids of New Zealand (Trans. N.Z. Inst., 

 vols. 36, 37) I had not the opportunity of consulting Selenka's monograph, 

 which was only purchased by the Otago Institute at a later date. I find 

 now that our common Sipunculid, which Hutton described in 1879, is 

 identical with Selenka's P. scolops, a very widely distributed species, which 

 was described five years later. Hutton's brief diagnosis, depending only 

 on externals, is insufficient for identification, and so must give way to 

 Selenka's specific name. 



I note that, although Fischer (Die Gephyrea, Abhandl. aus dem Gebiete 

 Naturwiss., 13, p. 10, 1895) regards P. scolops as a variety of the Medi- 

 terranean P. granulatum, Shipley still retains it as a distinct species 

 (Willey, Zool. Results Rep. on the Sipunculoidea, p. 156, 1899 ; and Rep. 

 on the Gephyrea, Pearl Oyster Fishery, Ceylon, p. 174, 1903). 



It is evidently very common on the Kermadec Islands, for I have 

 more than fifty I collected on various parts of Sunday Island and on 

 Meyer Island in the ordinary positions — -that is, under stones in rock- 

 pools, in amongst coralline algae, &c. 



The distribution is very wide. 



Aspidosiphon truncatus Keferstein. 



Selenka and Man, "Die Sipunculiden," p. 118, pi. 13, 1884. 



Of this identification I do not feel quite certain, for the convolutions 

 of the intestine are fewer, and the longitudinal muscle bands rather 

 more numerous ; but as our specimens agree in so many features with 

 those of Keferstein's species, and do not agree with any other description 

 to which I have access, I place it here. The differences are so slight that 

 I do not feel competent to differentiate a new species. 



Loc. — Sunday Island, in coralline algae. Six specimens. 



Distribution. — Mauritius, Panama, Japan (Ikeda, Jo urn. Coll. Sci., 20). 



Class Chaetognatha. 

 Sagitta fowleri nora. nov. 



Fowler, " On Plankton Chaetognatha of the Bay of Islands, New 

 Zealand," Ann. Mag. Nat. Hist. (8), 1, p. 240, 1908. 

 I received seven specimens of a rather large Chaetognath which had been 

 cast ashore, and were somewhat injured, and had unfortunately been placed 

 in a tube rather too small for them, so that they are not only damaged by 

 the sand, but also folded and crumpled. At first I failed to notice the 

 anterior lateral fin, and took it for a species of Krohnia ; but the formula 

 given by Dr. G. H. Fowler for an unnamed species from the Bay of Islands 



