348 
We shall then turn to the material which has been collected 
in Japanese waters: 
Date 
Locality 
Depth 
-* • 
Species 
30/IV 14 
Misaki. 
beach . 
Balanus trigonus. 
2/V 14 
Aburatsubo, Misaki. 
3 fthms. 
Balanus trigonus. 
Scalpellum indieum ; Megalasma 
tum; Verruca albatrossiana. 
13 V 14 
21 miles W. Vj S. of Bonomisaki 
220 fthms. ... 
14 V 14 
32° 17’ N., 128° 1P E. 
110 fthms. . .. 
Scalpellum Stearnsii. 
15/V 14 
32° 15’ N., 128° 12’ E. 
90 fthms. 
Smilium acutum; Balanus dentif 
17/V 14 
33° 41 ’ N., 128° 50’ E. 
75 fthms. .... 
Oxynaspis celata f. japonica. 
25/V 14 
Misaki. 
20 fthms. 
Balanus trigonus. 
1-7 /VI 14 
Sagami Bav. 
400 fthms. ... 
Heteralepas scutiger; Acasta jap>i 
6-9 /VI 14 
Sagami Bay. 
80—400 fthms. 
ScalpellumStearnsii; Scalpellum ru i 
9/VI 14 
Misaki. 
25 fthms. 
Balanus trigonus. 
10/VI 14 
Off Misaki . 
80—120 fthms. 
Balanus trigonus. 
26/ Vi 14 
Okinose, Sagami Sea. 
100 fthms. ... 
Scalpellum rubrum. 
29/VI 14 
Aburatsubo, Misaki. 
surface . 
Lepas anatifera. 
? 
Nagasaki. 
•? 
Oxynaspis celata f. japonica. 
The collections are here far less extensive than those from the 
Philippines; the Japanese waters are obviously less rich in cirri- 
peds, a faet also easily deduced from the literature. Nevertheless, 
the region is of great interest, and a thorough study especially of 
the northern parts of the Japanese waters will no doubt yield inter- 
esting biographical results. 
The Southern part of the Japanese region is related to the Ma- 
lay region, and gives refuge to the foreposts of the Malayisian fauna 
proper as above mentioned. Sometimes it may be difficult to tell, 
whether a species has its proper home in Japanese or Malayisian 
waters, as f. inst. Scalpellum Stearnsii : in Dr. Mortensen’s collec¬ 
tions this species is represented from Japanese waters (Sagami), 
and from the Philippines (off Jolo); Pilsbry (1907) had at his 
disposal only Japanese specimens, and Kriiger (1911) tells us 
that the species occurs in abundance in the Sagami Bay; Hoek 
(1907) on the other hånd in the „Siboga“-report mentions it from the 
Kei Islands, Madura Sea, and west of Makassar. Scalpellum rubrum 
4 
seems to be more abundant in Japanese waters: it was first re¬ 
ported by Hoek (1883) off Luzon, and has later on only been 
observed by Pilsbry (1911) off Kagoshima; it now again turns 
up near Sagami. Acasta japonica seemingly is a Japanese species, 
