REPORT ON THE ASTEROIDEA. 623 



small spines on the adoral margin of each plate, which are directed horizontally over the 

 buccal membrane, and radiate slightly apart, forming an elegant comb of six spinelets at 

 each mouth-angle. The spinelets are subequal in length, invested with delicate membranous 

 sheaths, on which are borne several comparatively large pedicellariaj. On the actinal 

 surface of the plate is a single, comparatively large, and robust secondary or superficial 

 spine, about 2 mm. in length, often, and perhaps normally, slightly flaring at the tip. 

 This spinelet was invested with membrane, but I am unable to remark upon the character 

 or number of the pedicellaria; borne upon it. 



The madreporiform body, which is small and rather inconspicuous, is somewhat more 

 remote from the margin than usual in the Brisingidae. It is very simply punctured, a single 

 figure-3-shaped striation and one or two isolated irregular pores being all that I can detect. 



Colour in alcohol, a light dirty ashy grey. 



Locality. — Station 171. North-east of the Kermadec Islands. July 15, 1874. Lat. 

 28° 33' 0" S., long. 177° 50' 0" W. Depth 600 fathoms. Hard ground. Bottom tem- 

 perature 39°*5 Fahr. ; surface temperature 66°'5 Fahr. 



Remarks. — Freyella polycnema differs from all the other species of the genus by the 

 great number of its rays, by their delicacy, and by its small size. With the single excep- 

 tion of Freyella pennata, a large robust form with ten rays, it is the only other species 

 with three true mouth-spines on each mouth-plate. By the above-mentioned characters, 

 as well as by other minor points of detail, it may be readily distinguished from all the 

 known species. 



3. Freyella echinata, n. sp. (PI. CXII. figs. 1-5). 



Rays eleven. R = 202 to 212 mm. ; r— 12 mm. R>l7r. Breadth of a ray at the base, 

 G mm. ; at the widest part of the ovarial inflation, 9 mm., which is measured at a distance 

 of about 18 mm. from the junction with the disk. At 40 mm. beyond the disk the width 

 of the ray is 4 '5 mm., and about midway between the base and the extremity, 32 mm. 



Rays of great length and delicacy, cylindrical and narrow at the base, thence gradually 

 swelling into a robust, but not greatly tumid, fusiform ovarial inflation, occupyiug less 

 than the proximal fifth of the length (actually 37 mm.), beyond which the ray is sub- 

 triangular, with a truncate carination, and tapers gradually to a very attenuate extremity. 



The disk is small and slightly elevated above the level of the rays at their base, with 

 the abactinal surface probably capable of slight inflation ; in its present condition rather 

 concave, which is somewhat emphasised by the moderate prominence of the basal arches of 

 the rays, formed by the ambulacral plates at their junction with the disk. The ovarial 

 inflation is not so great abactinally as laterally, hence the concavity seen in the profile 

 view of the ray, intervening between the elevated margin of the disk and the ovarial 

 inflation, is not so deep as in some species. 



