Plate 44 



Stylaslerias forreri 



i? 1 SU-PlPton of base of ray of large specimen from Port Chester, southern Alaska. Above, the 

 Fio. 1. ^leton^ base < * o J^ ^ ^ ^^ h 



carina' and Tsuperomarginal ossicles are fully developed. The dorsolateral skeleton of 

 lobTd primary pltes, joined l.v secondary ossicles, is shown * ithoul shading. hed, to 

 £££*Z attachments. In the carina! series one plate has b«™^ - 



2p^^^ 



'ffTfirst twocarinalplat.es; 1, 2, 3, first three supermarginal; 'joined to B the 

 nrimarv taterradial plate of disk, by an intermediate ossicle (one of a par as shown n 



'fig ™) ?llll first three inferomarginals; .1 D, adambulacrals; AC acl uial mtan hate 



(circular plate in figure 4); O, odontophore. .,.„„. B , v . R 16 



S Dorsal skeleton of disk and base, of ray of very young specimen, Monterej Baj . K 



mm X10 The carinal intermediate plates are alfeadj beginnmg , first -annal 



1) plaL stippled; /? 4, R 6, f,,,r,h and fifth plate, of same series; B, madreponte 



on primary inteSdi'al ptte; bi, first dorsolateral plate; 1-3, first three superomar- 



6 inals - „ vin Th first Da j r f adambulacral plates only 



1 ^^;,::z, zxz:zz £S -' -- &. — , ~ > -— -? 



feACofF.gure2. The apparent actinal on either side of this is the first mferomargmal. 



205 



