308 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. XXXIV. 
Family HIMEROMETRID 2. 
Genus HIMEROMETRA A. H. Clark. 
HIMEROMETRA SUBCARINATA A. H. Clark. 
Tokyo Gulf, Uraga channel; 25 fathoms; May 26, 1901. (Owston 
collection, No. 6067.) 
One specimen, resembling the type, but very dark, nearly black in 
color. 
Tokyo Gulf; Uraga channel; 30 fathoms; May 17, 1901. (Owston 
collection, No. 6052. . 
Two specimens, resembling the preceding. 
Sagami Bay; 34° 47’ north latitude; 138° 44’ east longitude; 56 
fathoms; August 20, 1902. (Owston collection, No. 7173.) 
One specimen, resembling the preceding. 
Sagami Bay, 35° 02’ north latitude, 138° 52’ east longitude; 50 
fathoms; August 6, 1902. (Owston collection, No. 7016.) 
Three specimens, resembling the preceding. 
This species was previously known only from the southern part of 
the Sea of Japan. 
Gnas OITIGOMOUZIMRA A el, Cllawelk, 
OLIGOMETRA JAPONICA (Hartlaub). 
Sagami Bay; 35° 02° north latitude, 138° 50’ east longitude; 55 
fathoms. (Owston collection, No. 7036.) 
The collection contains one specimen, agreeing well with Hart- 
laub’s original description. There are twenty-seven cirri, 10 mm. 
long, with sixteen to twenty-one (most commonly eighteen or nine- 
teen) joints, all subequal, approximately squarish, the fourth and fifth 
and those following bearing a low transverse serrate ridge, situated 
in the middle of the joint, appearing as a short dorsal spine in 
lateral view. The opposing spine is short, but prominent, rather 
less than half the diameter of the penultimate joint in height, situated 
in the middle of the dorsal side. The terminal claw is about equal 
in length to the penultimate joint, moderately stout, and rather 
abruptly curved. . 
Arms about 40 mm. long, as in Hartlaub’s specimen; the proximal 
brachials are smooth, the middle and distal somewhat overlapping; 
syzygia occur between the third and fourth brachials, again between 
the ninth and tenth to fifteenth and sixteenth, and distally at inter- 
vals of five to nine (usually six) oblique muscular articulations. 
The first three pinnules are approximately equal in length, 8 mm. 
long, with about fifteen joints, the first short, the second squarish, 
the remainder elongate; the joimts in the proximal half are smooth, 
