36 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40. 



(other than Heliometra) there from personal observation. Dr. Carlos 

 Porter, of Santiago, assures me that they are never found there. We 

 must conclude, therefore, either that Valenciennes' specimens were 

 wrongly labeled, or that some other Chile is meant. 



The Antedon hraziliensis proposed, but not described, by Lutken, 

 which is the same thing as Gay's Comatula picta, and subsequently 

 compared in considerable detail, with Lamarck's Comatula carinata 

 by Rathbun has never been recognized ; it is a perfectly good species, 

 however, as I have recently been able to assure myself, most obvi- 

 ously differing from carinata in the greater length of the outer cirrus 

 segments. 



TROPIOMETRA ENCRINUS, new species. 



Comatula, sp. Audouin, in Savigny, Description de l'Egypte, 1817, p. 205, pi. 1. 



Alecto encrinus Lutken MS. 



? Antedon, sp. Moseley, Quart. Journ. Micr. Sei., vol. 17, 1877, p. 8. — Mac 



Munn, Quart. Journ. Micr. Sci., vol. 30, 1890, p. 55. 

 Antedon marmorata P. H. Carpenter, Challenger Reports, vol. 26, Zoology, 1888, 



p. 202 (nomen nudum). 

 Antedon carinata (part) (not of Lamarck) P. H. Carpenter, Challenger Reports, 



vol. 26, Zoology, 1888, p. 199. 



Localities. — "Red Sea;" Aden; ? Suez. 



This species ranges eastward to the South Sea Islands and the east 

 coast of Asia; it appears to be generally rare, though common about 

 Ceylon. 



Remarks. — I am not absolutely certain that the Red Sea speci- 

 mens of Tropiometra should be referred to this species, as I have 

 never been able to examine any of large size, but they seem to be 

 nearer encrinus of corresponding size than to any other form. 



Tropiometra encrinus, while having the same number of cirrus 

 segments as T. carinata and T. picta, has proportionately longer 

 and stouter cirri, the stoutness being especially noticeable distally, 

 Owing to the increased size of the cirri as a whole, the proportions 

 of the segments are the same as in T. picta. 



Family THALASSOMETRID^. 



Subfamily THALASSOMETIN^E. 

 Genus CROTALOMETRA A. H. Clark. 



CROTALOMETRA MAGNICIRRA (Bell). 



Antedon magnicirra Bell, Marine Investigations in South Africa, vol. 4, 1905 



p. 141, pi. 4. 

 Crotalometra magnicirra A. H. Clark, Proc. Biol. Soc. Washington, vol. 22, 1909, 



p. 80. 



Localities. — Buffalo River, East London, bearing NW. ^ W., 19 

 miles distant; the same landmark bearing N. 15 miles distant; East 

 London bearing NW. % N., approximately 20 miles distant (Bell). 

 * Depth.— 300-450 fathoms. 



