Bbnham. — Stellerids and Echinids from the Kermadecs. 153 



species is identical with that from Lord Howe Island it seems to me that 

 Hutton's name j)arva (1879) should take precedence of Clark's. I have 

 !iot re-examined the identity of our form. 



The specimens collected by Mr. Oliver are juvenile : the largest of the 

 five individuals measures 2mm. across the disc; the arms are about 

 3^ times this diameter. 



Locality. — Coral Bay, .Sunday Island : "" h\ mud, under stones." 

 Distribution. — New Zealand, Auckland Islands, North Atlantic, Mediter- 

 ranean, Cape of Good Hope, south-east Australia, Chile, Gough Island, 

 Lord Howe Island. 



Ophiocoma brevipes Peters. 



I believe this to be Peters's species, but, as a detailed account is not 

 accessible to New Zealand naturalists, I append a full account of these 

 specimens. 



The material consists of two specimens in alcohol. 



Dimensions. — Disc, 28 mm. in diameter ; arms, about 100 mm. from 

 the base, but, as they are curled a good deal, it is impossible to give accu- 

 rate measurements. The breadth of the arm at the base is 5-5 mm., and 

 over the spines 11 mm. 



The whole of the circular disc is covered with a thinnish skin, with 

 minute, closely set, rounded granules, about 8 or 9 in the length of a milli- 

 metre. The disc bulges between the arms, which are set at the edge, and 

 are not inserted in a notch. 



The adradials are entirely covered, as is also the interbrachial actinal 

 area, with this granulation. 



The orals are large, hexagonal, with curved sides ; sometimes the angles 

 are obsolete. The radial diameter is a little greater than the transverse 

 (L = 3-5 mm. ; 6r = 3 mm.). The greatest breadth is near the outer side, 

 and the mesially directed angle is acuter than the aboral angle. 



The side mouth-plates are triangular, project externally, and are dark 

 in colour. Buccal papillae pale, 5 on each side : the outer ones are long, 

 conical, and pointed at the apex : the inner ones are slightly shorter and 

 rounder. 



Dental papillae form a somewhat triangular group, of which one series 

 of 4 are quite small, and lie more superficially than the buccal papillae : 

 2 others are nearly in line with the latter, and similar to them in shape : 

 8 or 9 others form two curved rows below ; of these, 4 or 5 lie in an 

 upper row, the 2 outer ones of which are smaller than the other 3 ; while 

 the lower row consists of 4, about equal in size, and arranged so as to 

 alternate with those of the upper row. There is some variation in the details, 

 even at the five angles of one and the same individual, especially with regard 

 to the outermost series, which may be absent ; while, on the other hand, 

 there is sometimes an additional pair of small ones in line with the buccal 

 papillae. 



Teeth are 4 in number. 



Upper arm-plates are twice broader than long, transversely oval, with 

 convex distal margin ; they meet one another broadly. 



Under arm-plates are somewhat shield-shaped — that is, quadrangular, 

 with the proximal margin less broad thaji the distal. The latter is convexly 

 rounded and the lateral margins more or less excavated, while the 



