220 RECENT OPHIURANS. 



disappear distally. Near the margin of the disk and over the distal end of the 

 concealed radial shields some of the granules are enlarged to several times the 

 usual height, but they are still too minute to call spinelets. Upper arm-plates, 

 where visible, small, rounded triangular, widely separated. Oral shield and 

 adoral plates concealed. Oral papillae about 10 on each side; the two or three 

 distalmost are oval and flat, and much larger than the others which are narrow, 

 bluntly pointed and somewhat flattened; all are more or less rough. Genital 

 slits small, bordered by a series of rough granules noticeably larger than the 

 others on the interbrachial space. Beyond the third arm-joint, the under 

 arm-plates become visible, although granules continue to the middle of the arm; 

 the plates are longer than wide, separated from each other, with a distal notch, 

 concave sides and proximal margin pointed. Side arm-plates meeting above 

 and below; each carries a series of five small, pointed conical spines, apparently 

 hollow, of which the uppermost is a trifle longer than the others and nearly 

 equals the arm-joint; besides the arm-spines, the side arm-plates near base of 

 arm have more or fewer of the rough granules on their free surfaces. Tentacle- 

 scale single, very large, flat, oval, pointed. Color (dried from alcohol), dirty 

 yellowish. 



HoLOTYPE (M. C. Z. 3795). New Zealand: near Wellington. August, 

 1913. H. Farquhar. 



In presenting this unique specimen to the M. C. Z., and allowing me to 

 describe it Mr. Farquhar showed his characteristically generous spirit. He stated 

 that he collected it under a stone near low-water mark near Wellington and had 

 never seen another. 



Ophiomyces. 



Lyman, 1869. BuU. M. C. Z., 1, p. 343. 

 Type-species: Ophiomyces fruiectosus Lyman, 1S69. op. cit., p. 345. Type here first designated. 



430. O. FRUTECTOSUS Lyman, 1869. Bull. M. C. Z., 1, p. 345. 1871. lUus. cat. M. C. Z., no. 

 6, pi. 2. f. 11-13. 



16 specimens, including holotype and 3 paratypes. North Atlantic: off 

 Portugal, Josephine Bank, 117-130 fms. Florida^: off west coast, 100 fms.; 

 off Alligator Reef, 110-113 fms.; off Tennessee Reef, 160 fms.; off Conch 

 Reef, 77 fms.; off Sand Key, 100 fms. Cuba: off Havana, 119 fms. Off 

 Barbados, 100-288 fms. 



' Without definite locality, 



