230 ECHINODEBMA OF THE InDIAN MuSEtTM, PART VII. 



Compsometra lacertosa 1910. A. H. Clark, Proc. U. S. Nat. Mus., vol. 38, p. 275. 



Habitat. — Southern Australia. 



Depth. — Littoral, and down to 20 fathoms. 



Remarks. — There is nothing whatever in the diagnosis of this species which 

 furnishes a clue to the characters separating it from C. loveni, and Professor Bell 

 himself in 1889 published a note stating that the two wei'e identical, the diag- 

 noses differing only because he had established loveni {i.e. " piiiinla^') on a broken 

 and incoDinioda on an entire specimen. I was much surprised, therefore, to find, 

 upon visiting the Britisli Museum, that the types of Antedori incommoda were 

 specimens of the interesting and very distinct species which I recently des- 

 cribed as Cotn.psoiiietra lacertona. 



COMPSOMETRA sp. 



In the British Museum there are eleven specimens of a species of Compso- 

 metra from Lewis Island in the Dampier Ai'chipelago ; I was not able to deter- 

 mine them specifically while visiting that institution because of lack of time. 



Genus IRIDOMETRA. 



Iridometra 1908. A. H. Clark, Proc. Biol. Soc. Waaliington, vol. 21, p. 130 

 (Antedon adrestine A. H. Clark, 1907). 



IRIDOMETRA ADRESTINE. 



Antedon adrestine 1907. A. H. Clark, Smiths. Miscell. Coll. (Quarterly Issue), 



vol. 50, part 3, p. 340. 

 Iridometra adrestine 1908. A. H. Clark, Proc. Biol. Soc. Washington, vol. 21^ 



p. 131. 



Habitat. — Southern Japan. 

 Depth. — 45-48 fathoms. 



IRIDOMETRA MELPOMENE. 

 Iridometra meljiomene 1911. A. H. Clark, Proc. U. S. Nat. Mus., vol. 39, p. 559. 

 Habitat. — Philippine Islands. 

 Depth. — 88 fathoms. 



IRIDOMETRA MAURITIANA. 

 Iridometra mauritiana 1911. A. H. Clark, Proc. U. S. Nat. Mus., vol. 40, p. 40. 

 Habitat. — Mauritius ; Madagascar. 

 Depth. — Littoral. 



