578 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
SQUALID.®. 
2 . Centroscy Ilium ritteri Jordan & Fowler. 
Centroscyllmm ritteri Jordan & Fowler, Proe. U. S. Nat. Mus., xxvi, 1903, p. 035; Totomi Bay. 
Station 3730, off Owai Point, Totomi Bay, 34 to 37 fathoms. 
Centroscyllium ritteri Jordan & Fowler. 
RAJM. 
3. Raja tengu Jordan A Fowler. 
Raja tengu Jordan & Fowler, Proc. U. S. Nat. Mus., xxvi, 1903, p. 654; Matsushima Bay. 
Station 3770, off Xagane Point, Matsushima Bay, 42 to 45 fathoms. 
Raja tengu Jordan & Fowler. 
PTEROTHRISSID7E. 
4. Pterothrissus gissu Hilgendorf. 
Station 3709, Suruga Bay, 173 to 260 fathoms; station 3715, Suruga Bay, 64 to 65 fathoms; station 
3721, Suruga Bay, 207 to 250 fathoms; station 3770, Matsushima Bay, 42 to 45 fathoms; station 3772, 
Matsushima Bay, 79 fathoms; station 3773, Matsushima Bay, 78 fathoms. 
The young are very silvery, with the silvery mucous partitions in the cavernous suborbital region 
very distinct. 
