Vcrrill, Nofes on Radiata. 36*7 



the disk is covered with minute, sliort, forked sj)ines, witli few or 

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

 mens the long spines are entirely wanting. Tlu^ general cohn* is some- 

 times flesh-color or pink instead of violet. 



The i)reviously recorded localities are from Florida and Aspinwall 

 to Brazil. 



Ophiolepis paUCispina Miill. and Tm-soh., op. cit., ]). nO; Lyman, Catal., p. .'55. 

 Ophiuni paucispiua Say, op. cit., p. 149, 1825. 



Three sjjecimens, agreeing exactly with those from Florida and 

 West Indies, were collected by Mr. Ilartt at the Abrolhos Reefs. 



Ophiura cinerea Lyman, Catai., p. 27. 



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

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



Numerous large and fine specimens of this species were collected l)y 

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

 under corals. 



Some of these measure 6*5 inches from the center to ends of rays; 

 1'25 in diameter of disk. 



All the Ophiurans from the Abrolhos Were collected in shallow pools on the reefs 

 from under dead corals or stones. — c. F. 11. 



Order, ASTERIOIDEA. 



Orsaster gigas (Linn, sp.) Liitken, Yideusk. Meddel, 1859, p. G4. 



Peutaceros reticulalus Gray, Ann. and Mag. N. II., p. 275, 1810. 

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



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

 Hartt at tlie Abrolhos reefs. 



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

 liarbadoes, and throughout the West Indies. 



The Brazilian specimens agree perfectly with those from Florida 

 and St. Thomas. 



Linckia ornithopus Lotken. 



Opihidia.ster ornithopus Miill. and Trosch., op. cit., p. .31, 1842 ; Liitken, op. cit., p. SO. 

 ? Linckia Guildinijii Gray, op. cit, 1840. 



Sevei'al specimens of this species from the Al)rolhos Reefs present 

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

 sist of a single large ray, from the end of whic^h four or five new ones 

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



A specimen from Berniuda (J. M.Jones) does not ap|)reciably difl'er. 

 Tr.*..vs. iJoNNECTicuT AcAD., VoL. I. 47 Februaky, 1868. 



