ASTEROIDEA OF NORTH PACIFIC AND ADJACENT WATERS— FISHER 49 



terminal plate is very swollen and conspicuous. The large pedicellaria on the furrow 



SPm Var C rW-Of'two large specimens from station 4775, Bering Sea one measures 

 as follows: R 160 mm.; r 17 mm.; R = 9.4+ r; breadth of ray at base 20 mm The 

 other measures R 147 mm.; r 15 mm.; R- 9.1 r; breadth of ray at base 21 _mm 

 In this example the base of ray is much more swollen than in the other In both the 

 the ray is shorter than in typical examples from central California and the spines gen- 

 erally are shorter and stubbier. The proximal abactinal papular areas contain only 

 two or three vermiform papulae instead of the typical four or five of big Califorman 

 examples These northern examples show an accentuation of the differences which 

 separate the Monterey Bay and northern California examples from the southern 

 race I have called edenes. If typical ectenes is compared with the Bering bea speci- 

 mens, the difference is very striking. 



Type.— Cat. No. 22346, U.S.N.M. 



Type-locality.-Stntion 4517, 9 miles off Point Pinos, Monterey Bay, Cahf., 766 

 to 750 fathoms, green mud and sand; five specimens. 



DitinhOUm.-Bowers Bank, Bering Sea, and off central California, undoubtedly 

 intergrading with the southern form from off southern California. Bathymetnc 

 range from about 550 to 766 fathoms. 



Specimens examined.— Ten from the following localities: 



Station 3670, off Monterey Bay; 581 fathoms, green mud and sand; bottom 

 tpmnerature 57.8° F.; two specimens. 



7tttZ i 4517, 9 miles off Point Pinos, Monterey Bay; 766 to 750 fathoms, green 

 mud, sand; two specimens. ^ 



Station 4540, 11.2 miles northwest Point Pinos, Monterey Bay, 551 to 389 



"TBEKS Stands, San Francisco entrance; 587 to 495 fathoms. 



^^Ta^^T^wrsZrSring Sea (54° 33' 30" W., 178° 44' E.); 584 

 fathoms, green mud, black specks, foraminifera; two specimens 



Recorded by H. L. Clark from Monterey Bay region, 475 to 659 fathoms, 67. J 



to 39.9° F. 



Remarks.— The stomach of one specimen contained a shrimp. 



MTXODEKMA SACCULATUM ECTENES Fisher 



Plate 14, Figures 4, 4a, 46; Plate 21, Figure 1; Plate 22, Figure 1; Plate 25, Figures 5-12 

 Myxoderma sacculatum ectenes Fisher, Ann. and Mag. Nat. Hist., Ben 9 vol 13, 1919 p. 392. 

 Zoroaster evermanni part, Clark (not Fisher), Bull. Amcr. Mus. Nat. Hurt., vol. 32, art. 

 8, July 9, 1913, p. 198. 

 Diagnosis-Differing from typical M. sacculatum in having slenderer and longer 

 rays- the third or lowest actinolateral series of plates is present on only a small proxi- 

 mal portion (about a third) of each ray; abactinal spines rather slenderer generaUy 

 abactinal pedicellariae larger and more numerous. R 210 mm.; r 16 mm., R-13 r, 



hreadth of rav at base, 19 mm. 



DescriptL-The differences between this southern race and the north era 

 typical form are analogous to those existing between the two subspecies of Myxoderma 



