RECENT OPHIURANS. 341 



Radial shields small, separated for their entu-e length (or, in the smallest speci- 

 men, in contact distally), with 3 relatively large plates distal to them and sepa- 

 rating them from the upper arm-plates. The middle one of these tlu-ee plates 

 is the smallest; it is in contact distally with the first upper arm-plate and proxi- 

 mally with the radial series of disk-plates; such an arrangement of plates distal 

 to the radial shields is evident in most specimens of Ophiozona. First upper 

 arm-plate quadrilateral, very short, three times as wide as long; second plate 

 similar but much larger; third much larger still and only twice as wide as long; 

 these three plates are broadly in contact; succeeding plates rapidly becoming 

 rounded triangular (with proxunal angle) and at middle of arm and distally, 

 separated from each other. Interbrachial areas below covered with about a 

 dozen scales. Oral shields pentagonal; distal margin convex but the other 

 four sides somewhat concave; breadth and length about equal; madrepore 

 decidedly larger than the others. Adoral plates moderately large, fully in 

 contact within; oral plates minute for the jaws are short. Oral papillae not 

 very large; proxunal one of each series, infradental in position, thick and squar- 

 ish; second one smaller and more scale-like; there then follows either the large, 

 scale-like distal papilla or preceding it may be another small one. First under 

 arm-plate large (bigger than an adoral plate), much wider than long; succeeding 

 plates longer than wide, bell-shaped, the lateral margins concave and the distal 

 end much wider than the proximal; the basal ones are sUghtly in contact and 

 it is only on the distal part of the arm that they are clearly separated. Side 

 arm-plates somewhat flaring, with sUghtly thickened distal margins, in contact 

 above and below on distal part of arm at least; each plate carries 3 short, stout, 

 blunt, subequal arm-spines not at all appressed to arm; lowest spine about half 

 as long as arm-joint or a little longer. Tentacle-scale, single, large, nearly circu- 

 lar, attached to side arm-plate. Colors (dry), dull but in very ornamental pat- 

 tern (hence the name); small scales adjoining central plate, proximal part of 

 each large radial plate, radial sliields, and third, fifth and each alternate arm- 

 joint beyond, dull brownish with a purple tinge; all other disk-scales and arm- 

 joints whitish with more or less yellow tinge; many Hght upper arm-plates with a 

 dusky spot; lower sm-face similarly but less regularly variegated; oral papillae 

 and most tentacle-scales and arm-spines, whitish. 



HoLOTYPE (M. C. Z. 3726) and 2 paratypes (M. C. Z. 3930). New 

 Zealand: Wellington, under stones near low-water mark. H. Farquhar coll. 



With characteristic kindness, Mr. Farquhar gave these specimens to the 

 Museum in August, 1913, expressing the hope that if new to science, as he 



