Verrill, JSfotes on. Madiata. 36V 



the disk is covered with minute, short, forked spines, with few or 

 numerous long, slender, thorny ones among them ; but in many speci- 

 mens the long spines are entirely wanting. The general color is some- 

 times flesh-color or pink instead of violet. 



The previously recorded localities are from Florida and Aspinwall 

 to Brazil. 



Ophiolepis paucispina Miill. and Tro-!ch., op. cit., p. 90; Lyman, Catal., p. 55. 

 Ophiura paucispina Say, op. cit., p. 149, 1825. 



Three specimens, agreeing exactly with those from Floi-ida and 

 West Indies, Avere collected by Mr. Hartt at the Al)rolhos Reefs. 



Ophiura Cinerea Lyman, Catal, p. 27. 



OpModerma cinereum Miill. and Tr., Syst., p. 87, 1842. 

 Ophioderma Antillarum Liitken, Add. ad Hist. Oph., p. 88, 



Numerous large an<l tine specimens of this s})ecies were collected by 

 Mr. Hartt at the .Vbrolhos Reefs. They were found living in crevices 

 under corals. 



Some of these measure 6*5 inches fi-om the center to ends of rays; 

 1"25 in diameter of disk. 



All the Opihiurans from the Abrolhos were collected lu shallow pools on tlie reefs 

 fi-oni mitler dead corals or stones. — o. f. ii. 



Order, ASTERIOIDEA. 



Orsaster gigas (Linn, sp.) LUtken, Vidonsk. Meddel., 1859, p. 64. 



Pentaceros reticulaius G-ray, Ann. and Mag. N. H., p. 275, 184-0. 

 Oreaster reticulatus Miill and Tr., Syst. Asterid., p. 45, 1842. 



Two large and fine specimens of this species were collected by Mr. 

 Hartt at the Abrolhos reefs. 



Its previous localities were Florida, Bahamas, St. Thomas, Hayti, 

 Barbadoes, and throughout the West Indies. 



The Brazilian specimens agree perfectly with those from Florida 

 and St. Thomas. 



Linckia ornithopus Latken. 



Ophidiaster ornithopus Miill. and Trosch., op. cit., p. 31, 1842 ; Liltkcn, op. cit., p. SO. 

 f Linckia Guildimjii Gray, op. cit., 1840. 



Several specimens of this species from the Al)rolhos Reefs present 

 curious malformations due to the restoration of lost rays. Two con- 

 sist of a single large ray, from the end of which four or five new ones 

 have begun to grow. Two specimens are regularly five rayed. 



A specimen from Bermuda (J. M. Jones) does not appreciably differ. 



Tr.v.ms. (Joxxecticut Ac.\n., Vol. I. 47 February, 1868. 



