152 
R. Rathbun — List of the Brazilian Eehinoderms. 
Ophionereis reticulata (Sari Lutken. 
Addit ad Hist. Oph. p. 110. 1859; Lyman. Dlust. Cat.. No. I. p. 141, 1865; Yer- 
rilL Trans. Conn. Acad., i, p. 366, 1868. 
Plataforma and Mar Grande, Bay of Bahia, Hat rocky shores, 
under stones, moderately abundant (Rathbun). Abrolhos Islands 
(Hartt, ’67 ; Rathbun). Rio de Janeiro Harbor; off Cape Frio (H. 
E.). Northern Brazil (Ljungman). Florida; West Indies; Bay of 
Cumana ; Bermudas (Lyman). 
Ophiocoma echinata <Lam.) Agass. 
Prod. Hem. Soc. Scien. Nat. de Neuchatel, i, 1835: Lyman, Illust. Cat., No. I, p. 
81, 1865. 
Several specimens of this species, in fine condition, were brought 
from Parahyba do Norte, by Mr. Branner in 1876. They were 
obtained from shallow water, near the shore. A medium size speci- 
men measured : diameter of disk, 26 •5 ,uni ; length of arm, 84 mm . 
Florida; West Indies; Aspinwall; Bay of Cumana (Lyman). 
Ophiocoma Riisei Lutken. 
Vidensk. Meddelelser. Jan., 1856, p. 14; Lyman, Illust. Cat., No. L p. 76, 1865. 
One large specimen of this species was obtained by Mr. Branner 
in 1876, from the shore of the Island of Fernando de Noronha. It 
measured; diameter of disk, 29 ,um ; length of arm, 181 mm . In the 
characters of its several parts it agreed quite closely with the descrip- 
tion of Mr. Lyman (loc. cit.), the differences noted being such as 
would naturally arise from its increased growth. Florida ; West 
Indies ; Bay of Cumana (Lyman). 
Ophiopsila Riisei Lutken. 
Addit. ad Hist. Oph., p. 136. 1859; Lyman. Dlust. Cat., No. I, p. 150, 1865. 
Northern Brazil (Ljungman^ Florida (Lyman). West Indies 
(Ljung.) 
Ophiothrix violacea Mull, and Trosch. 
Syst. AstericL. p. 115, 1842; Lvman. Illust. Cat., No. I. p. 164. 1865; Verrill, 
Trans. Conn. Acad.. L p. 366. 1868. 
This is one of the most wide-spread of the Brazilian Ophiurans, 
having been recorded from Parahyba do Norte in the north, to Rio 
de Janeiro in the south, and from the littoral zone to a depth of at 
least 35 fathoms. In the Bay of Bahia it is particularly abundant, 
