R. Rathbun — List of the Brazilian Echinoderms. 
153 
being more common there than any other species. It undergoes con- 
siderable variation as regards shades of coloration, but is otherwise 
quite constant in its characters. 
Parahyba do Xorte ; Rio Formoso, Pernambuco very abundant 
(Branner). Plataforma, Mar Grande, Mapelle, and nearly everywhere 
along the shores of the Bay of Bahia; also dredged in about 4 
fathoms in front of the city of Bahia (Rathbun). Abrolhos Islands, 
abundant (Hartt, ’67 ; Rathbun). Near Bahia; lat. 11° 49' S., loner. 
37° 27' W. G. ; off Cape Frio, 35 fathoms; Rio de Janeiro Harbor, 
(H. E.). Rio de Janeiro (Liitken, coll, by Prof. Kroyer; Mull, and 
Trosch., in the Museum at Vienna). Southern Brazil (Ljungman). 
Florida, shore to 50 fathoms; West Indies; Yucatan (Lym.). As- 
pinwall ; Barbadoes iH. E. ). 
Ophiothrix Suensonii Liitken. 
Yidensk. Meddel., Jan., 1856. p. 16; Lyman, Illiist. Cat., Xo. I. p. 157. 1865. 
Lat. 22° S., long. 40° W. G., sandy bottom, depth not recorded ; 
obtained by the Brazilian cable repair steamer “Norseman,” 187G, 
(identified by Mr. Theo. Lyman). West Indies; Carthagena, New 
Granada (Lyman). Barbadoes, 100 fathoms (H. E.) 
Ophiactis Krebsii Liitken. 
Addit. ad Hist. Oph., p. 126, 1859; Lyman, Illust. Cat.. Xo. I, P- 111, 1865; Ter- 
rill. Trans. Conn. Acad., i, p. 366, 1868. 
Plataforma, Bay of Bahia, only a few specimens obtained (Rath- 
bun). Abrolhos Islands (Hartt, ’67). Near Island of Paqueta, Bay 
of Rio de Janeiro, 3-4 fathoms, five specimens dredged (Rathbun). 
The majority of the specimens obtained had six arms. S. Carolina 
— Florida; Bahamas; St. Thomas (Lyman). 
Ophiactis Mulleri Liitken. 
Addit. ad Hist. Oph., p. 127, 1859; Lyman, Illust. Cat.. Xo. I, p. 109, 1865. 
Off the Abrolhos Islands, 30 fathoms (H. E.). Florida ; West 
Indies (Lyman). 
HemipholiS COrdifera (Bose) Lyman. 
Illust. Cat., Xo. I, p. 137, 1865. 
Southern Brazil (Ljungman). S. Carolina (Lyman). 
