ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 461 
REPORT UPON THE FISHES COLLECTED BY THE STEAMER ALBATROSS 
OFF THE COAST OF CALIFORNIA, BETWEEN POINT CONCEPTION AND 
POINT ARENA, IN MARCH AND APRIL, 1890. 
During parts of March and April, 1890, the U. 8. Fish Commission 
steamer Albatross made an investigation of the fishing-grounds on the 
coast of Oalifornia from Point Conception to Point Arena, in contin- 
uation of the inquiries conducted the previous year to the southward 
of Point Conception. On the earlier expedition the writer acted as 
chief naturalist of the Albatross, and the new fishes obtained at that 
time have been described by him in a paper published in 1890, in the 
Proceedings of the United States National Museum.* The collection 
of fishes made on the latter cruise was also referred to him and is dis- 
cussed in the present paper. It consists largely of the same species 
secured south of Point Conception, but was found to contain represent- 
atives of one undescribed genus and four new species. 
The cruise of March and April, 1890, is fully described by Lieut. 
Commander Z. L. Tanner, U. S. N., the commanding officer of the 
steamer Albatross, in his report for that year, pp. 219-226; and the 
fishery results are discussed by Mr. A. B. Alexander, fishery expert of 
the Albatross, in the same connection, pp. 275-279. 
The investigations were carried from the shallow water along shore 
into a depth of 627 fathoms, the fishery work having been conducted 
chiefly by means of the beam trawl, which was employed at 113 sep- 
arate stations. The positions of the different stations, the depth of 
water, character of bottom found at each, with other data; are given in 
the report of Lieut. Commander Tanner above referred to. 
FPamily HEPTATREMIDZ, 
1. Polistotrema stouti (Lockington). 
Stations 3103 and 3126; depths 67 and 456 fathoms. 
Family SCYLLIORHINIDA. The Cat Sharks. 
2. Catulus xaniurus Gilbert. 
Stations 3126, 3196, and 3200, in 200 to 456 fathoms, 
In two young specimens, 105 and 110 mm. long, a series of spines is developed on 
each side of the middle line of back, larger than the prickles and firmly set. These 
begin above the second or third gill-slit, continue to slightly beyond front of first 
dorsal fin, and contain 15 to 18 spines. A similar series of lateral spinelets is 
described by Eigenmann in young of Scylliorhinus ventriosus—= Catulus uter J. & G. 
(West American Scientist, Nov., 1889, p. 151). It is not improbable that they may 
* Scientific results of explorations by the U.S. Fish Commission steamer Albatross, 
No. xu1.—A preliminary report on the fishes collected by the steamer Albatross on the 
Pacific Coast of North America during the year 1889, with descriptions of 12 new 
genera and 92 new species, by Charles H. Gilbert; Proc. U.S. Nat. Mus. 1890, 49-126. 
tReport upon the investigations of the U.S. Fish Commission steamer Albatross 
from July 1, 1889, to June 30, 1890, by Lieut. Commander Z. L. Tanner, U.S. N., 
commanding. Report U, S. Fish Comm. for 1889-1891, 207-342, 
