350 s. GOTO : 



intercalated ])etweeu tlio larger ones bear one to three or foiu- conical skin- 

 covered gi-annles, or a small central spinolet or jîedicellaria, surrounded by 

 in-egular givanules, depending upon size of plate. As in pJirrjgiana, the sur- 

 face of gi-anules is smooth, and the free edge is romided, or the whole granule 

 may be subconical and pointed. 



" Marginal plates slightly tumid as in plirijfjiana. Superomarginals 

 sixteen or seventeen \â) ray, corresponding with inferoraarginals except on 

 distal part of ray. Plates of both series siuTounded by a single row of 

 squarish blunt or flattened skin- covered gi-amiles, Avhich in one specimen are 

 more j^inched with rounded top. Proximal eight or nine plates of each 

 series with two (less commonly only one, or as many as three) rigid spines, 

 similar to abactinal spines, but usually a little larger ; remainder of plates 

 with one such spine. In 'pliryfj'iana marginal plates have only robust 

 tubercles. Occasionally a two- ja wed pedicellaria occm's on marginal plates, 

 but Avidely scattered along the series. 



" Actinal intermediate plates arranged as in 'plirycjlana, but psdicellarise 

 Avith liigher jaws wliich sometimes taper to a naiTow tip ; these pedicellarife 

 frequently have serrate jaws, especially in southern examples. Granules 

 pointed, thickly covered with membrane. Tubercles variable, subtruncato, 

 thimble-shaped, or subconical and sharp, especially in southern examples. 



" Adambulacral spines arranged practically as iw. 'plirijijianay but longer 

 and stouter. Actinal spine at least as long as width of plate and subequal 

 to but much stouter than the two furrow spines, which are slightly tapering 

 and compressed at tip. Frequently a pedicellaria stands on the plate. 



*' Mouth plates with four or five fmTOW spines slightly larger than thosa 

 of adambulacral plates. 



" Colour in life. — A specimen from off Point Piuos, California, was 

 bright scarlet vermilion when taken from the water ; this colour disappeared 

 almost at once in alcohol. 



" Anatomical notes. — No rudimentary suj^xirambulacral plates. Intestinal 

 oœcum large, comjX)sed of about four radiating branches vrliich immediately 

 subdivide irregularly into numerous slender tubes reaching nearly to margin. 

 Gonad, a tliick tuft of branching tubules on either side of the interradial 



