RECENT OPHIURANS. 219 



423. O. CUPIDA KoEHLER, 1905. Siboga-exp. Oph. litt., p. 15, pi. 1, f. 19, 20. Dutch East Indies: 



Moluccas, 25 fms. Sulu Archipelago, 7-13 fms. 



424. 0. FORBESI (Heller), 1862. Sitzb. Kongl.-akad. Wien, 46, p. 422, pi. 2, f. 5-8 (Peclinura). 



Adriatic Sea, 15-50 fms. 



425. O. GRANDISQUAMA Koehler, 1904. Siboga-exp. Oph. mer prof., p. 11, pi. 2, f. 11, 12. 



Dutch East Indies: west of Waigeu, 261 fms. 



426. 0. INDICA KoEHLEK, 1897. Aim. sci. nat. Zool., ser. 8, 4, p. 325, pi. 7, f. 38, 39. Andaman 



Islands, 45-270 fms. 



427. O. PERMIXTA Koehler, 1905. Siboga-exp. Oph. litt., p. 14, pi. 2, f. 4, 7.' Dutch East In- 



dies: southeast of Celebes, 42-53 fms.; near Kei Islands, 50 fms. 



428. O. PULVERULENTA Lyman, 1879. Bull. M. C. Z., 6, p. 45, pi. 14, f. 377-379. Near Tonga 



Islands, 240 fms. 



Ophiocoemus - gen. nov. 



Type-species: Ophiocormus notabUis, sp. nov. 



Disk, interbrachial spaces below to tips of jaws, upper and lower surfaces 

 of basal arm-joints, and even portions of the basal side arm-plates covered 

 with minute rough, stumpy granules (hence the name). Radial shields, oral 

 shields and adoral plates, basal upper arm-plates and a few basal under arm- 

 plates completely concealed. Oral papillae numerous. Arm-spines few and 

 very short. 



The real relationships of this remarkable genus are uncertain. It is quite 

 possible that its true position is in the Ophiodermatidae, but the oral papillae 

 and the granules covering the body surface are so ophiacanthine that it may 

 be wisely placed in the present family. Moreover the arm-spines, though so 

 minute, seem to be hollow and their appearance under the microscope is much 

 more hke those of Ophioconis than like any ophiodermatid spines examined. 

 On the whole I regard Ophiocormus as an extreme development from an Ophio- 

 conis-like ancestor but of coiu-se more abundant material is necessary before 

 the matter can be satisfactorily determined. 



429. 0. NOTABILIS, sp. nov. Plate 3, f. 11, 12. 



Disk, 3 mm. in diameter; arms 6 mm. long, distinctly flattened, especially 

 near tip, and rather wide. Disk, upper surface of seven basal arm-joints, inter- 

 brachial spaces below to tips of jaws, and lower surface of three basal arm-joints 

 covered with a coat of rough granules, not crowded but uniformly spaced, except 

 on the arm-siu-faces where they become more and more scattered and completely 



' Figures 5 and 7 on pi. 2, Siboga littoral ophiurans have exchanged their numbers; hence all text 

 references are wrong. 



2 601S, snake + Kopti6s, trunk, log, stump. 



