ASTEROIDEA OF NORTH PACIFIC AND ADJACF.NT WATERS — FISHER. 225 



larger ones bear one to three or four conical skin-covc-red granules, or a small cen- 

 tral spinelet or pedicellaria, surrounded l)y irregular granules, depending upon 

 size of plate. As in phrygiana, the surface of granules is smooth, and the free 

 edge is rounded, or the whole granule may be subcorneal and i)ointcd. 



Marginal plates slightly tumid as in phnjgiana. Superomarginals sixteen or 

 seventeen to ray, corresponding with inferonuuginals except on distal part of 

 ray. Plates of both series surrounded by a single row of squarLsh blunt or 

 flattened skin-covered granules, which in one specimen are more pinched with 

 rounded top. Proximal eight or nine plates of each series with two (less com- 

 monly only one, or as many as three) rigid spiiu^, similar to abactinal spines, but 

 usually a little larger; rehiainder of plates with one such spine. In phrygiana 

 marginal plates have only robust tubercles. Occasionally a two-jawed pedicel- 

 laria occurs on marginal i)latcs, but widely scattereil along the series. 



Actinal intermediate jilates arranged as in phrygiana, but pedicellarire with 

 higher jaws which sometimes taper to a narrow tip; these pedicellaria^ frecpieutly 

 have serrate jaws, especially in southern examples. Granides jjointeil, tliickly 

 covered with membrane. Tubercles variable, subtruncate, thimble-shaped, or 

 subconical and sharp, especially \n southern examples. 



Adambulacral spines arranged practically as in phrygiana, but longer and 

 stouter. Actinal spine at least as long as width of i)late and subequal to but much 

 stouter than the two furrow spines, which are slightly tapering anil compressed at 

 tip. Frequently a pedicellaria stands on the ])late. 



Mouth plates with four or five furrow spines sligluly larger than those of 

 adambulacral plates. 



Color in life. — A specimen from off Pouit Piiio.s, Calirornia, was bright scarlet 

 vermilion when taken from the water; this color disappeared almost at once in 

 alcohol. 



Anatomical 7iotes. — Xo rudimentary superumbulacral plates. Intestinal coe- 

 cum large, composed of about foui' radiatmg brajiches wliicli inunediately sub- 

 divide irregidarly into numerous slender tubes reaching nearly to margin. Gonad, 

 a thick tuft of branching tubules on eitluT side of the uiterradial septum, about 

 one-third r from margin. Stomach capacious, the thick hepatic coeca reaching into 

 ray about one-half R. 



Variations. — The chief variations concern tlu> length of the abactinal spines 

 and the height of the pedicellaria?. A specimen from station 4292, vicinity of Kadiak 

 Island, and tlu-ee from station 3080, coast of Washington, have considerably shorter 

 abactinal spines than all the others, but they dilferstill from typical phrygiana in hav- 

 ing prominent marginal spines, longer adambulacral spines, and iiigher pedicellaria-. 

 The actinal pedicellariie are the most variable, in some cases tending toward the 

 form characteristic of ailifornica. The jaws have either smooth or serrate eilges. 



In Californian sjjecimens the spuies are all very prominent, more so than in the 

 northern examples, ami the actinal jiedicellaria' are plainly serrate. The Monterey 

 Bay (station 4.").')2) example has more numerous marginal spines than the example 

 from olf southern California (station 3064). In both, the rays are notably stouter 

 and shorter tlian in typical phrygiana. The specimen from station 45.52 has the 

 57444°— Bull. 70—11 10 



