OPHIUROIDEA OF THE BAHAMA EXPEDITION. 23 



Indies, in shallow water. Fernando de Noronha, Brazil (R. 

 Rathbun). 



Ophiocoma pumila Liltken. 



OpkiocomapumilaL,ut\s.en,Vid.MLeddel., p. 13, Jan. 1856; Add. ad 

 Hist. Oph., Pt. II, p. 146, pi. IV, fig-. 5, 1859. Lyman, 111. Cat. Mus. 

 Comp. Zool., I, p. 71, 1865. Verrill, Notes on Radiata, Trans. Conn. 

 Acad., I, p. 341, 1868. Lyman, Report Voy. Challenger, Zool., Ophiur- 

 oidea, V, p. 171, 1882. 



Sta. 15, off Havana, 200 fathoms, one example; Sta. 67, 74, 

 76, off Little Cat I., in 3 to 13 fathoms, eighteen examples; 

 Tortugas, eleven examples. Common from the Florida Keys 

 to Colon, and throughout the West Indies, in shallow water, 

 to Brazil. Bermudas (Lyman; Goode). 



Ophiopsila riisei Liltken. 



Ophiopsila riisei LUtken, Add. ad Hist. Oph., Pt. II, p. 136, pi. V, 

 fig-. 2, 1859. 



Ophiopsila riisei Lyman, 111. Cat. Mus. Comp. Zool., I, p. 150, figs. 

 16, 17, 1865; Bull. Mus. Comp. Zool., V, 9, p. 228. Verrill, Notes on 

 Radiata, Trans. Conn. Acad., I, p. 341, 1868. Lyman, Report Voy. 

 Challenger, Zool., Ophiuroidea, V, p. 160, pi. XL, figs. 1-3, 1882, 

 anatomy. 



I have found it desirable to separate Oifidva Lym. and 

 allied species from Ophiopsila, as a new genus (see p. ). 



O. riisei appears to be closely related to the type (O. aranea 

 Forbes), and like the latter, has a compact cluster of special 

 tooth-papillae within the margin of the jaw. 



Station 13, off Havana, 200 fathoms, two examples. Ba- 

 hama Banks, in shallow water, two examples; Egg Key, one 

 example. 



Throughout the West Indies and Florida Reefs. Com- 

 mon in shallow water. Also at Colon and Cumana, Ven. 

 Brazil (Ljungmah). Dredged by the Blake Exped. in 37 to 

 50 fathoms. 



Family, AMPHIURID^ Ljung:, 1867. 

 Amphiura of authors, sens. ext. 



