320 



ART. 2. — H. MATSUMOTO 



Bathypectinura gotoi Matsumoto. 



Bathypedimira gotoi : Matsumoto, Proc. Acad. Nat. Sei. Philadelphia, 

 1915, p. 87. 



Two specimens ; Nishinoyodomi, Sagami Sea ; 170 fathoms. 



Diameter of disk 50 mm. Length of arms 195 mm. Width 

 of arms at base 7 mm. 



Disk pentagonal, flat, closely covered with fine granules, of 

 which fom' or five occur in 1 mm. Radial shields only partly 



naked, but distinguishable 

 ■■:" through the superficial 



^ . ■ • granulations as large, elon- 



gated ovate, slight swel- 

 lings, nearly half as long 

 as the disk radius, and 

 wider outwards ; the naked 

 part is very small, ovate, 

 and wider without than 

 within. Genital slits very 

 long, almost reaching to 

 the margin of the disk. 

 Genital plates distinct, long 

 and very stout. 



Oral shields small, 

 triangular, with rounded 

 angles and convex sides, 

 almost as wide as long. 

 Accessory oral shields very 

 rudimentarv. In one of 

 the two specimens, they 



Fig. 89. Bathypectinura rjoto'i. xl}. a. From 

 above, h. From below, c. Side view of four arm 

 joints near disk. d. Dorsal view of five arm joints 

 somewhat near disk, showing the divided dorsal 

 arm i:)lates. 



