RECENT OPHIURANS. 299 



This specimen is labeled Ophiopsila riisei but I feel sure it is not that species. 

 The markings of the upper surface of the arm are suggestive of those shown 

 by 0. hartmeyeri, but the coloration is otherwise so totally different, there is 

 no reason for considering the fact significant. Aside from color, polystida 

 differs from hartmeyeri in narrower arm-plates, both upper and lower, and in 

 more slender arm-spines. 



1036. O. RIISEI LtJTKEN, 1859. Add. ad hist. Oph., pt. 2, p. 136, pi. 5, f. 2a-2c. 



65 specimens. Bahamas: Orange Key. Florida': Cape Florida; Key 

 West. Gulf of Mexico, 37 fms. Haiti. Barbados, 13-40 fms. 



Species of Ophiopsila not represented in the M. C. Z. 



1037. O. ANNULOSA (Saes), 1857. Nyt. mag. naturvid., 10, p. 83, pi. 1, f, 2-7 (Ophianoplus). 



Mediterranean Sea. 



1038. O. MACULATA (Verrill), 1899. Bull. Univ. Iowa, new ser,, 1, no. 6, p. 55, pi. 3, f. 4, 4a 



(Amphipsila). Cuba: off Havana, 200 fms. 



1039. O. PANTHERINA Koehler, 1898. Bull, sci., 31, p. 72, pi. 3, f. 15, 16. Mergui Archipelago, 



4^35 fms. 



1040. 0. PAUCISPINA Koehler, 1907. Bull, sci., 41, p. 314, pi. 11, f, 26. Mozambique: Fernao 



Veloso Bay. 



OPHIODERMATIDAE. 



Ophiaeachna. 



MtTLLER and Troschel, 1842, Syst. Ast., p. 84, 104. 



Type-species: Ophiura incrassata Lamarck, 1816. Anim. sans Vert., 2, p. 542. Tjqje designated by 



LtJTKEN, 1869. 



1041. O. AFFINIS LtJTKEN, 1869. Add. ad hist. Oph., pt. 3, p. 34, 98. Plate 18, f. 1, 2. 



1 specimen. Samoa. 



1042. O. INCRASSATA (Lamarck). 



Ophiura incrassata Lamarck, 1816. Anim sans Vert., 2, p. 542. 



Ophiarachna incrassata MtJLLER and Troschel, 1842. Syst. Ast., p. 104. Herklots, 1869. 

 Echinod. peintes d'apres nature, pi. 6, (colored). 



25 specimens. Phihppine Islands. Amboina. Torres Strait: Erub; 

 Murray Islands, Mer. Pelew Islands. Fiji Islands (or Samoa?). Caroline 

 Islands : Kusaie. 



' Without definite locality. 



