wi l I tODM \ PACIFIC AND ADJACEN1 IVATBB8 M-H> 161 



of ray. There is one buo< aal -pine, b little longer than the carinala, and just 



below it two slightly longer, tapered inferomarginal Bpineleta, the upper the 

 The three spines form three longitudinal series, the two inferomarginal being on the 

 ventrolateral margin of the ray, the Buperomarginala spaced above them by about 

 the length of a spine. Bach abactinal and Buperomarginal apinelel in Burrounded by 

 a collar of crossed pedicellariae borne on a Bheath while the in feromarginala cairj a 

 -mall cluster, tliiit of tin' outer being the larger. It is often absent from the inner or 

 lower spine Scattered irregularrj among the abactinal and marginal Bp 

 unguiculate straight pedicellariae sometimes longer than the spineleU A i< 

 huge one is found in each actinaJ interradial an 



The abactinal skeleton ia of the irregularly reticulate typ 

 irregularly and the marginals fairly regularly four lobed and directly imbii< 

 except in the case of the proximal carinala which may have an inb 



le. The dorsolaterals are quite irregular. Actinal plates absent l'l 72 



Papulae compound, four to eight small papillae to a cluster and t\\> 

 clusters to a mesh, irregularrj distributed. Bach cluster represents a Bubdi 

 compound papula, [ntermarginal ureas with one cluster. The papulae lill in 

 Bpaces between the circumspinal crowns of pedi and give thi 



minutely papillose appearai 



Adambulacral plates juxtapo oly to infi bort, bo that 



the consecutive pairs i in contact. The spines, which are slender, 



slightly tapered, and bh i arly equal, a littli lerer 



than the lower inferomarginal -pine, and form two regular Ion 

 margin. The proximal -pines measure 1.25 mm. A cordon of large ped 

 lanceolate Btraighl pedicellariae proximalrj 95 mm. long) oc< upiee the furrow 

 of the adambulacrals, Thej 301 extend !•• ■>• furrow Bpinee 



latter carry no pedicellariae what* 



The actinostome is small and constricted, and the adoral ri her well 



developed, consisting of ah oral pairs of adambulacrals j( 



erradial line. Mouth pis I. compressed, each with two rather ~;«nit . 



Battened, blunt Bpineleta, the inni to the mouth. At the base of the inner 



Bpinelet is a lanceolate Btraig ■ ilaria, and frequently a largei 



(with two claws to a jaw l occupies a position the Buboral and a ■ nial 



Bpinelet (one to each oral 



Ambulacra] i ■■ much compi mbulacral po 



the two mesial rowB no1 exactrj Btraight, so that the tube feet appear in m 

 four Beriea, in the broadest portion <>f the ray. 



pedicellariae, distributed aa indicated abo of fairlj unif 



:t mm.), though -mall on ire found 1 here and l 



ng the larger. They lack enl th on the terminal expanded poi 



have numerous -mall denticles on the -hank. 



The Btraight pedicellariae of the abactinal and lateral 



• n in profile, and from two to three times as loi The 



jaw broadened diatally and end in one to three promini 



claw lit- between two of the opposing jaw. The larg< 

 nun. in length. The uu al intermediate : to 1.7 n 



