180 RECENT OPHIURANS. 



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



105. E. ANOPLA H. L. Clabk, 1911. Bull. 75 U. S. N. M., p. 294, f. 144. Eastern Sea, 103-152 fms. 



ASTERONYX. 



MtJLLER and Tkosceel, 1842. Syst. Ast., p. 85, 119. 



Type-species: Asteronyx loveni MUller and Tkoschel, 1842. op. ciL, p. 119. Monotypic when 



established. 



106. A. DISPAR LiJTKEN and Moetensen, 1899. Mem. M. C. Z., 23, p. 185, pi. 21, f. 1, 2. 



9 specimens, including 4 cotypes. Lower California: off Point San Tomas, 

 868-1076 fms.; off Rosario Bay, 879 fms. Mexico: off Mazatlan, 995 fms. 

 Gulp of Panama, 1020-1270 fms. 



107. A. EXCAVATA LtJTKEN and Mortensen, 1899. Mem. M. C. Z., 23, p. 185, pi. 22, f. 2-6. 



2 specimens, including 1 cotype. Lower California: off Cape St. Lucas, 

 491 fms. Mexico: near Las Tres Marias Islands, 676 fms. 



108. A. LOVENI MtJLLEE and Tkoschel, 1843. Syst. Ast., p. 119, pi. 10, f. 3-5. 



73 specimens. Norway: Finmark, 100 fms. Scotland: The Minch. 

 East of Nantucket, 980 fms. Off St. Vincent, 573 fms. Lower California: 

 southwest of San Cristobal Bay, 284 fms. Off Cahfornia, 627 fms. Off Wash- 

 ington, 859 fms. Off British Columbia, 876 fms. Off Alaskan Peninsula, 625 

 fms. Off eastern Japan, 129 fms. Off southeastern Japan, 345 fms. 



109. A. PLANA LuTKEN and Mortensen, 1899. Mem. M. C. Z., 23, p. 186, pi. 21, f. 3, 4. 



1 COTYPE. Gulf of Panama: southwest of Malpelo Island, 1132 fms. 



Genera of Trichasteridae not represented in the M. C. Z. 

 Ophiuropsis Studer, 1884. Abh. K.-Preus. acad. wiss. Berlin, p. 55. 



110. TjTje-species; OPHIUROPSIS LYMANI Studer, 1884. op. Ht., pi. 5, f. 12a-d. Mono- 



typic. Off German Southwest Africa, 60 fms. 



Sthenocephalus Koehler, 1898. Bull, sci., 31, p. 111. 



111. Type-species: STHENOCEPHALUS INDICUS Koehler, 1898. op. ciL, p. 112, pi. 5, f. 48- 



49. Monotypic. Dutch East Indies: Caspar Strait, 30 fms. 



